SECURITIES AND EXCHANGE COMMISSION Washington, D.C. FORM U-3A-2 Statement by Holding Company Claiming Exemption Under Rule U-3A-2 from the Provisions of the Public Utility Holding Company Act of 1935 To Be Filed Annually Prior to March 1 Constellation Energy Group, Inc. hereby files with the Securities and Exchange Commission, pursuant to Rule 2 its statement claiming exemption as a holding company from the provisions of the Public Utility Holding Company Act of 1935 and submits the following information: 1. Name, state of organization, location and nature of business of claimant and every subsidiary thereof, other than any exempt wholesale generator (EWG) or foreign utility company in which claimant directly or indirectly holds an interest. ------------------------------------------------------------------------------------------------------------ Name State of Organization Location and Nature of Business ------------------------------------------------------------------------------------------------------------ Constellation Energy Group, Inc. MD Baltimore, MD - holding company ------------------------------------------------------------------------------------------------------------ Subsidiaries of Constellation Energy Group, Inc. ------------------------------------------------------------------------------------------------------------ Baltimore Gas and Electric MD Baltimore, MD - public utility Company ------------------------------------------------------------------------------------------------------------ Constellation Enterprises, Inc. MD Baltimore, MD - holding company ------------------------------------------------------------------------------------------------------------ Constellation Generation Group, MD Baltimore, MD - holding company LLC (name changed from Constellation Nuclear, LLC on 7/1/02) ------------------------------------------------------------------------------------------------------------ CEG Acquisition, LLC MD Baltimore, MD - holding company ------------------------------------------------------------------------------------------------------------ New Constellation Energy Group, MD Dissolved 6/25/02 Inc. ------------------------------------------------------------------------------------------------------------ Subsidiaries of Baltimore Gas and Electric Company -------------------------------------------------------------------------------------------- District Chilled Water General MD Baltimore, MD - district chilled Partnership water systems -------------------------------------------------------------------------------------------- BGE Capital Trust I DE Baltimore, MD - business trust -------------------------------------------------------------------------------------------- Silicon Power Corporation PA Malvern, PA - manufacturer -------------------------------------------------------------------------------------------- Subsidiaries of Constellation Generation Group, LLC (name changed from Constellation Nuclear, LLC on 7/1/02) -------------------------------------------------------------------------------------------- Constellation Nuclear Services, MD Baltimore, MD - nuclear Inc. consulting services -------------------------------------------------------------------------------------------- Constellation Nuclear Power DE Baltimore, MD - nuclear holding Plants, Inc. company -------------------------------------------------------------------------------------------- Constellation Nuclear Services, LLC DE Dissolved 6/18/02 -------------------------------------------------------------------------------------------- Subsidiaries of CEG Acquisition, LLC -------------------------------------------------------------------------------------------- Constellation NewEnergy, Inc. DE Baltimore, MD - energy services -------------------------------------------------------------------------------------------- Fellon-McCord Associates, Inc. KY Kentucky - energy services -------------------------------------------------------------------------------------------- Subsidiaries of Constellation Nuclear Power Plants, Inc. -------------------------------------------------------------------------------------------- Calvert Cliffs Nuclear Power DE Dissolved 6/18/02 Plant, LLC -------------------------------------------------------------------------------------------- Subsidiaries of Constellation Enterprises, Inc. -------------------------------------------------------------------------------------------- Constellation Energy Source, Inc. DE Baltimore, MD - energy services (CES) -------------------------------------------------------------------------------------------- BGE Home Products & Services, MD Baltimore, MD - energy services Inc. (HPS) -------------------------------------------------------------------------------------------- Constellation Holdings, Inc. MD Baltimore, MD - holding company -------------------------------------------------------------------------------------------- Subsidiaries of Constellation Energy Source, Inc. -------------------------------------------------------------------------------------------- Constellation Energy Services, DE Baltimore, MD - energy services LLC -------------------------------------------------------------------------------------------- BGE Home Products & Services, DE Dissolved 1/22/02 LLC -------------------------------------------------------------------------------------------- Las Vegas District Energy, LLC DE Las Vegas, NV - energy services -------------------------------------------------------------------------------------------- Nashville District Energy, LLC DE Nashville, TN - energy services -------------------------------------------------------------------------------------------- North Shore District Energy, DE Baltimore, MD - operation and LLC maintenance of an energy facility -------------------------------------------------------------------------------------------- 2 Subsidiaries of BGE Home Products & Services, Inc. ------------------------------------------------------------------------------------------ BGE Commercial Building MD Baltimore, MD - energy services Systems, Inc. ------------------------------------------------------------------------------------------ HPS Receivables, Inc. MD Baltimore, MD - special purpose financing sub ------------------------------------------------------------------------------------------ Power Provider, LLC DE Inactive ------------------------------------------------------------------------------------------ Subsidiary of Fellon-McCord Associates, Inc. ------------------------------------------------------------------------------------------ Alliance Energy Services, LLC KY Kentucky - energy services ------------------------------------------------------------------------------------------ Subsidiaries of Constellation NewEnergy, Inc. ------------------------------------------------------------------------------------------ Constellation NewEnergy Canada Canada - energy services Canada, Inc. ------------------------------------------------------------------------------------------ NewEnergy Technologies, L.L.C. AZ Arizona - energy services ------------------------------------------------------------------------------------------ NewEnergy Southwest, L.L.C. AZ Arizona - energy services ------------------------------------------------------------------------------------------ New Energy Partners, L.L.C. AZ Arizona - energy services ------------------------------------------------------------------------------------------ Subsidiaries of NewEnergy Technologies, L.L.C. ------------------------------------------------------------------------------------------ NewEnergy Americas, L.L.C. AZ Arizona - energy services ------------------------------------------------------------------------------------------ NewEnergy Pacifica, L.L.C. AZ Arizona - energy services ------------------------------------------------------------------------------------------ Subsidiaries of Constellation Holdings, Inc. ------------------------------------------------------------------------------------------ Constellation Power, Inc. (CPI) MD Baltimore, MD - holding company for generation and other energy related investments and their operation ------------------------------------------------------------------------------------------ Constellation Investments, Inc. MD Baltimore, MD - financial (CII) investments and holding company for electric generation ------------------------------------------------------------------------------------------ Constellation Real Estate Group, MD Baltimore, MD - real estate Inc. (CREG) ------------------------------------------------------------------------------------------ Constellation Power Source MD Baltimore, MD - merchant energy Holdings, Inc. business holding company ------------------------------------------------------------------------------------------ Subsidiaries of Constellation Power Source Holdings, Inc. ------------------------------------------------------------------------------------------ Constellation Power Source DE Baltimore, MD - Dissolved 6/18/02 Enterprises, Inc. ------------------------------------------------------------------------------------------ Constellation Power Source, Inc. DE Baltimore, MD - power marketing and trading ------------------------------------------------------------------------------------------ 3 Subsidiaries of Constellation Power Source, Inc. ------------------------------------------------------------------------------------------------ Constellation Power Source Texas, DE Baltimore, MD - invest in Inc. companies engaged in the retail sale of electricity ------------------------------------------------------------------------------------------------ Constellation Power Source Texas, DE Baltimore, MD - retail sale of LLC electricity ------------------------------------------------------------------------------------------------ Constellation Power Source DE Baltimore, MD - retail sale of Massachusetts, LLC electricity ------------------------------------------------------------------------------------------------ Constellation Power Source New DE Baltimore, MD - retail sale of Hampshire, LLC electricity ------------------------------------------------------------------------------------------------ Constellation Power Source Maine, DE Baltimore, MD - retail sale of LLC electricity ------------------------------------------------------------------------------------------------ Subsidiaries of Constellation Power Source Enterprises, Inc. ------------------------------------------------------------------------------------------------ Constellation Power Source DE Inactive. To be dissolved. Generation, LLC ------------------------------------------------------------------------------------------------ Constellation Power Source, LLC DE Inactive. To be dissolved. ------------------------------------------------------------------------------------------------ Subsidiaries of Constellation Power, Inc. ----------------------------------------------------------------------------------------------------------- Keystone Fuels, L.L.C. PA PA - acquires and sells coal ----------------------------------------------------------------------------------------------------------- Conemaugh Fules, LLC PA PA - acquires and sells coal ----------------------------------------------------------------------------------------------------------- Millenium Energy, LLC CA CA - provides management services to electric power generating facilities ----------------------------------------------------------------------------------------------------------- PC Virginia Synthetic Fuels #1, LLC VA VA - owns a fuel processing center ----------------------------------------------------------------------------------------------------------- PC West Virginia Synthetic Fuels #1, LLC WV WV - owns a fuel processing center ----------------------------------------------------------------------------------------------------------- PC West Virginia Synthetic Fuels #2, LLC WV WV - owns a fuel processing center ----------------------------------------------------------------------------------------------------------- PC West Virginia Synthetic Fuels #3, LLC OH OH - owns a fuel processing facility ----------------------------------------------------------------------------------------------------------- Plautas Hidroelectricas de Rio Yuna Bolivia Bolivia - joint venture that owns a hydro-electric facility ----------------------------------------------------------------------------------------------------------- Mammoth-Pacific Limited Partnership CA Mammoth Lakes, CA - partnership that owns a QF facility ----------------------------------------------------------------------------------------------------------- Mammoth Power Associates, L.P. CA Mammoth Lakes, CA - power development and geothermal leases ----------------------------------------------------------------------------------------------------------- CE SEGS IX, Inc. MD Montgomery County, MD - ownership interest in a partnership that owned a senior living facility. Sold in 2002. ----------------------------------------------------------------------------------------------------------- CD Mammoth Lakes I, Inc. MD Mammoth Lakes, CA - ownership interest in a partnership that owns a QF facility ----------------------------------------------------------------------------------------------------------- CD Mammoth Lakes II, Inc. MD Mammoth Lakes, CA - ownership interest in a partnership that owns a QF facility ----------------------------------------------------------------------------------------------------------- Soda Lake Resources Partnership NV Fallon, NV - ownership of geothermal resources for a QF facility ----------------------------------------------------------------------------------------------------------- 4 ----------------------------------------------------------------------------------------------------------------- CD Ormesageo 1H-A, Inc. MD VA, OH and WV - member of an LLC that has an interest in a partnership that owns LLCs that own coal processing facilities ----------------------------------------------------------------------------------------------------------------- CD Ormesageo 1H-B, Inc. MD VA, OH and WV - member of an LLC that has an interest in a partnership that owns LLCs that own coal processing facilities ----------------------------------------------------------------------------------------------------------------- CD Ormesageo 1H-C, Inc. MD VA, OH and WV - member of an LLC that has an interest in a partnership that owns LLCs that own coal processing facilities ----------------------------------------------------------------------------------------------------------------- Panther Creek Holdings, Inc. DE Carbon County, PA - ownership interest in Corporations that own interests in Partnerships that owns interest in a Partnership that is the lessee in a sale/leaseback of a QF facility ----------------------------------------------------------------------------------------------------------------- Panther Creek Energy, Inc. DE Inactive ----------------------------------------------------------------------------------------------------------------- Panther Creek Partners DE Carbon County, PA - partnership that owns interest in a QF facility as lessee in a sale/leaseback ----------------------------------------------------------------------------------------------------------------- CD Panther I, Inc. MD Carbon County, PA - ownership interest in a partnership that owns an interest in a partnership that is the lessee in a sale/leaseback of a QF facility ----------------------------------------------------------------------------------------------------------------- CD Panther II, Inc. MD Carbon County, PA - ownership interest in a partnership that owns an interest in a partnership that is the lessee in a sale/leaseback of a QF facility ----------------------------------------------------------------------------------------------------------------- CD Soda SLR, Inc. MD Fallon, NV - ownership interest in a partnership that owns geothermal resources ----------------------------------------------------------------------------------------------------------------- AMOR IV Corporation DE Fallon, NV - provided geothermal resources to lessee in a sale/leaseback. Sold 4/02. ----------------------------------------------------------------------------------------------------------------- AMOR IX Corporation DE Fallon, NV - lessee in a sale/leaseback of a QF facility ----------------------------------------------------------------------------------------------------------------- ACE Operating Partners CA Trona, CA - partnership that owns a partnership that owns a QF facility ----------------------------------------------------------------------------------------------------------------- Inter-Power/AhlCon Partners Limited DE Colver, PA - partnership that is the lessee Partnership in the sale/leaseback of a QF facility ----------------------------------------------------------------------------------------------------------------- CE Colver II, Inc. MD Colver, PA - ownership interest in partnership that has an ownership interest in a partnership that is the lessee in the sale/leaseback of a QF facility ----------------------------------------------------------------------------------------------------------------- CE Colver III, Inc. MD Colver, PA - ownership interest in a partnership that has an ownership interest in a partnership that is the lessee in the sale/leaseback of a QF facility ----------------------------------------------------------------------------------------------------------------- A/C Fuels Company PA Carbon County, PA - partnership that owns waste coal ----------------------------------------------------------------------------------------------------------------- CE Culm, Inc. MD Carbon County, PA - ownership interest in a partnership that owns waste coal ----------------------------------------------------------------------------------------------------------------- Freehold Cogeneration Associates Limited DE Inactive Partnership ----------------------------------------------------------------------------------------------------------------- CE Freehold Limited Partnership MD Inactive ----------------------------------------------------------------------------------------------------------------- CE Freehold I, Inc. MD Inactive ----------------------------------------------------------------------------------------------------------------- CE Freehold II, Inc. MD Inactive ----------------------------------------------------------------------------------------------------------------- CE Freehold III, Inc. MD Inactive ----------------------------------------------------------------------------------------------------------------- 5 -------------------------------------------------------------------------------------------------------- Lake City Geothermal I, L.P. CA Inactive -------------------------------------------------------------------------------------------------------- CE Lake City Limited Partnership I MD Inactive -------------------------------------------------------------------------------------------------------- CE Long Valley Limited Partnership MD Inactive -------------------------------------------------------------------------------------------------------- CE Long Valley I, Inc. MD Inactive -------------------------------------------------------------------------------------------------------- CE Long Valley II, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ Puna Geothermal Venture HI Hilo, HI - partnership that owns a PURPA geothermal facility ------------------------------------------------------------------------------------------------------------ CE Puna I, LP MD Hilo, HI - partnership that has an ownership interest in a partnership that owns a PURPA geothermal facility ------------------------------------------------------------------------------------------------------------ CE Puna I, Inc. MD Hilo, HI - ownership interest in a partnership that owns an interest in a partnership that owns a PURPA geothermal facility. ------------------------------------------------------------------------------------------------------------ CE Puna II, Inc. MD Hilo, HI - ownership interest in a partnership that owns an interest in a partnership that owns a PURPA geothermal facility ------------------------------------------------------------------------------------------------------------ CE Puna III, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ CE Taunton Limited Partnership MD Inactive ------------------------------------------------------------------------------------------------------------ CE Taunton I, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ CE Taunton II, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ CE Technical Services, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ Central Wayne Energy Recovery Limited MD Wayne County, MI - partnership that owns a QF Partnership facility ------------------------------------------------------------------------------------------------------------ CE Wayne II, Inc. MD Wayne County, MI - ownership interest in a partnership that owns an interest in a partnership that owns a QF facility ------------------------------------------------------------------------------------------------------------ CP Cabazon I, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ CP Cabazon II, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ Gary Coal Processing Limited Partnership DE Gary, IN - partnership that owns a coal processing facility ------------------------------------------------------------------------------------------------------------ Gary - PCI Ltd., L.P. DE Gary, IN - ownership interest in a partnership that owns a coal processing facility ------------------------------------------------------------------------------------------------------------ CP - Gary Limited Partnership MD Gary, IN - ownership interest in partnership that has an ownership in a partnership that owns a coal processing facility ------------------------------------------------------------------------------------------------------------ CP - Gary I, Inc. MD Gary, IN - ownership interest in a partnership that owns an interest in a partnership that owns an interest in a partnership that owns a coal processing facility ----------------------------------------------------------------------------------------------------------- CP - Gary II, Inc. MD Gary, IN - ownership interest in a partnership that owns an interest in a partnership that owns an interest in a partnership that owns a coal processing facility ----------------------------------------------------------------------------------------------------------- CP - Gary III, Inc. MD Gary, IN - ownership interest in a partnership that owns an interest in a partnership that owns an interest in a partnership that owns a coal processing facility ----------------------------------------------------------------------------------------------------------- 6 ------------------------------------------------------------------------------------------------------------ CP - Gary IV, Inc. MD Gary, IN - ownership interest in a partnership that owns an interest in a partnership that owns an interest in a partnership that owns a coal processing facility ------------------------------------------------------------------------------------------------------------ CP Stillwater-Wellfield, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ Stillwater Geothermal I NV Fallon, NV - partnership which was the owner/lessee in a sale/leaseback. Sold 4/02. ------------------------------------------------------------------------------------------------------------ The Peruvian Investment Group I, Inc. DE Inactive ------------------------------------------------------------------------------------------------------------ The Peruvian Investment Group II, Inc. DE Inactive ------------------------------------------------------------------------------------------------------------ CP High Desert Limited Partnership MD Victorville, CA - member of an LLC that was formed to supervise the construction and lease of an electric generating facility currently in construction ------------------------------------------------------------------------------------------------------------ CP High Desert I, Inc. MD Victorville, CA - ownership interest in a partnership that is a member of an LLC that was formed to supervise the construction of and lease an electric generating facility currently in construction ------------------------------------------------------------------------------------------------------------ CP High Desert II, Inc. MD Victorville, CA - ownership interest in a partnership that is a member of an LLC that was formed to supervise the construction of and lease an electric generating facility currently in construction ------------------------------------------------------------------------------------------------------------ Nickel Hill Energy, LLC MD Dracut, MA - an LLC formed to construct and own an electric generating facility for which development has terminated ------------------------------------------------------------------------------------------------------------ CP Nickel Hill, LLC DE Inactive ------------------------------------------------------------------------------------------------------------ CP Oleander Limited Partnership MD Brevard County, FL - ownership interest in a partnership which holds an electric generating facility. ------------------------------------------------------------------------------------------------------------ CP Oleander I, Inc. MD Brevard County, FL - ownership interest in a partnership that has an ownership interest in a partnership which holds an electric generating facility. ------------------------------------------------------------------------------------------------------------ CP Oleander II, Inc. MD Brevard County, FL - ownership interest in a partnership that has an ownership interest in a partnership which holds an electric generating facility. ------------------------------------------------------------------------------------------------------------ CP Florida Investors, Inc. MD Brevard County, FL - ownership interest in a partnership that owns an interest in a partnership which holds an electric generating facility. ------------------------------------------------------------------------------------------------------------ Sunnyside Generation, LLC DE Sunnyside, Utah - entity administers stock purchase agreement for partner of partnership that owns an interest in a partnership that owns a QF facility ------------------------------------------------------------------------------------------------------------ CP Sunnyside I, Inc. MD Sunnyside, Utah - owns companies that own interests in a partnership that owns an interest in a partnership that owns a QF facility ------------------------------------------------------------------------------------------------------------ 7 ---------------------------------------------------------------------------------------------------------------- Sunnyside II, Inc. DE Sunnyside, Utah - ownership interest in a partnership that owns an interest in a partnership that owns a QF facility ---------------------------------------------------------------------------------------------------------------- Sunnyside III, Inc. DE Sunnyside, Utah - ownership interest in a partnership that owns an interest in a partnership that owns a QF facility ---------------------------------------------------------------------------------------------------------------- Sunnyside Cogeneration Associates UT Sunnyside, Utah - owns a QF facility ---------------------------------------------------------------------------------------------------------------- Sunnyside Properties, LLC UT Sunnyside, Utah - owns real property on which QF facility is located ---------------------------------------------------------------------------------------------------------------- Pace Carbon Synfuels Investors, L.P. DE VA, OH and WV - partnership that owns coal processing facilities ---------------------------------------------------------------------------------------------------------------- CP Synfuels Investor, LLC MD VA, OH and WV - an LLC that has an interest in a partnership that owns LLCs that own coal processing facilities ---------------------------------------------------------------------------------------------------------------- CP Synfuels, Inc. MD VA, OH and WV - entitled to certain fees from synthetic fuel processing projects. ---------------------------------------------------------------------------------------------------------------- CP Synfuels Investor, Inc. MD VA, OH and WV - ownership of companies that are members of an LLC that has an interest in a partnership that owns LLCs that own coal processing facilities ---------------------------------------------------------------------------------------------------------------- CP Synfuels Member, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------------- Rio Nogales I, Inc. DE Seguin, Texas - ownership interest in a partnership that was formed to hold an electric generating facility currently in construction ---------------------------------------------------------------------------------------------------------------- Rio Nogales II, Inc. DE Seguin, Texas - ownership interest in a partnership that was formed to hold an electric generating facility currently in construction ---------------------------------------------------------------------------------------------------------------- Gateway Power Project, L.P. DE Gilmer, Texas - partnership formed to hold an electric generating facility for which development has terminated ---------------------------------------------------------------------------------------------------------------- Gateway Power I, Inc. DE Gilmer, Texas - ownership interest in a partnership that was formed to hold an electric generating facility for which development has terminated ---------------------------------------------------------------------------------------------------------------- Gateway II, Inc. DE Dissolved 6/22/02 ---------------------------------------------------------------------------------------------------------------- Constellation Power Development, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------------- Constellation Power International Investments, Cayman Islands Baltimore, MD - a holding company of Ltd. international power projects ---------------------------------------------------------------------------------------------------------------- West Chicago Energy, LLC MD Dissolved 6/22/02 ---------------------------------------------------------------------------------------------------------------- North Pond Energy Park, LLC MD Hardee County, FL - formed to own an electric generating facility for which development has terminated ---------------------------------------------------------------------------------------------------------------- South Pond Energy Park, LLC MD Hardee County, FL - formed to own an electric generating facility for which development has terminated ---------------------------------------------------------------------------------------------------------------- Constellation Operating Services, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- Constellation Power Development, LLC DE Dissolved 3/12/02 ---------------------------------------------------------------------------------------------------------------- Constellation Power, LLC DE Dissolved 6/18/02 ---------------------------------------------------------------------------------------------------------------- CP ACE, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP A/C Fuels, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP ACE IV, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- 8 ---------------------------------------------------------------------------------------------------------------- CP Cabazon, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Colver I, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Colver II, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Colver III, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Gary, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP High Desert I, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP High Desert II, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Mammoth, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Oleander I, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Oleander, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Panther, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Puna I, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Puna II, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Puna III, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Soda III, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Soda Lake Resource, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Stillwater,-Wellfield, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Synfuels II, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- CP Wayne II, LLC DE Dissolved 3/20/02 ---------------------------------------------------------------------------------------------------------------- Victorville-Gas, LLC DE Victorville, CA - formed to obtain and supply gas to gas-fueled generating facility currently in development. ---------------------------------------------------------------------------------------------------------------- High Desert II, LLC MD Inactive ---------------------------------------------------------------------------------------------------------------- HE Supply Company, LLC DE Beecher City, IL - retail sales of building materials for use in power generating facilities. ---------------------------------------------------------------------------------------------------------------- CP Operating Services, LLC DE Inactive. To be dissolved. ---------------------------------------------------------------------------------------------------------------- Subsidiaries of CP Operating Services, LLC ------------------------------------------ ---------------------------------------------------------------------------------------------------------------- Big Sandy Operating Services, LLC DE Inactive. To be dissolved. ---------------------------------------------------------------------------------------------------------------- Handsome Lake Operating Services, LLC DE Inactive. To be dissolved. ---------------------------------------------------------------------------------------------------------------- High Desert Operating Services, LLC DE Inactive. To be dissolved. ---------------------------------------------------------------------------------------------------------------- Holland Operating Services, LLC DE Inactive. To be dissolved. ---------------------------------------------------------------------------------------------------------------- Oleander Operating Services, LLC DE Inactive. To be dissolved. ---------------------------------------------------------------------------------------------------------------- Rio Nogales Operating Services, LLC DE Inactive. To be dissolved. ---------------------------------------------------------------------------------------------------------------- University Park Operating Services, LLC DE Inactive. To be dissolved. ---------------------------------------------------------------------------------------------------------------- Wolf Hills Operating Services, LLC DE Inactive. To be dissolved. ---------------------------------------------------------------------------------------------------------------- Subsidiaries of Constellation Power International Investments, Ltd. ------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------- CE Curacao, Inc. Cayman Islands Inactive --------------------------------------------------------------------------------------------------------------- Constellation de Guatemala, S.A. Guatemala Inactive --------------------------------------------------------------------------------------------------------------- Constellation Power International Development, Cayman Islands Inactive Inc. --------------------------------------------------------------------------------------------------------------- CP Panama I, S.A. Panama Panama - ownership interest in a company that has an ownership interest in a FUCO --------------------------------------------------------------------------------------------------------------- CP Panama Investors, LLC MD Panama - ownership interest in a company that has an ownership interest in a company that has an ownership interest in a FUCO. --------------------------------------------------------------------------------------------------------------- CPII Curacao, Ltd. Cayman Islands Inactive --------------------------------------------------------------------------------------------------------------- 9 --------------------------------------------------------------------------------------------------------------- FondElec General Partners, L.P. Cayman Islands Latin America - ownership interest in a company that has ownership interest in FUCOS, EWGs and other energy related businesses in Latin America --------------------------------------------------------------------------------------------------------------- Guatemalan Generating Group - I Cayman Island Guatemala - ownership interest in a company that had owned an EWG --------------------------------------------------------------------------------------------------------------- Grupo Generador de Guatemala, S.A. Guatemala Inactive --------------------------------------------------------------------------------------------------------------- Latin American Power Partners Limited Cayman Islands Latin America - potentially develop power projects in Latin America --------------------------------------------------------------------------------------------------------------- Panama Distribution Group, S.A. Panama Panama - ownership interest a FUCO --------------------------------------------------------------------------------------------------------------- The Latin America Energy and Electricity Fund Cayman Islands Latin Amercia - ownership interests in I, L.P. FUCOS, EWGS and other energy related businesses in Latin America --------------------------------------------------------------------------------------------------------------- Subsidiaries of Constellation Operating Services, Inc. ------------------------------------------------------ --------------------------------------------------------------------------------------------------------------- A/C Power MD Cambria County, PA - partnership that operates and maintains a QF facility --------------------------------------------------------------------------------------------------------------- PCI Operating Company Partnership MD Gary, IN - operation and maintenance of a coal processing facility --------------------------------------------------------------------------------------------------------------- Trona Operating Partners, G.P. MD Trona, CA - operates and maintains QF facility --------------------------------------------------------------------------------------------------------------- COSI ACE, LLC MD Trona, CA - ownership in Partnership that operates and maintains QF facility --------------------------------------------------------------------------------------------------------------- COSI - Gary I, Inc. MD Gary, Indiana - ownership interest in a partnership that provides operation and maintenance of a coal processing facility --------------------------------------------------------------------------------------------------------------- COSI - Gary II, Inc. MD Gary, Indiana - ownership interest in a partnership that provides operation and maintenance of a coal processing facility --------------------------------------------------------------------------------------------------------------- COSI Synfuels, Inc. MD VA, OH and WV - employs personnel who are seconded to an affiliate who operates and maintains coal processing facilities. --------------------------------------------------------------------------------------------------------------- COSI Synfuels VA1, Inc. MD Virginia - operate a fuel processing facility --------------------------------------------------------------------------------------------------------------- COSI Synfuels WV1, Inc. MD West Virginia - operate a fuel processing facility --------------------------------------------------------------------------------------------------------------- COSI Synfuels WV2, Inc. MD West Virginia - operate a fuel processing facility --------------------------------------------------------------------------------------------------------------- COSI Synfuels WV3, Inc. MD Ohio - operates coal processing facilities --------------------------------------------------------------------------------------------------------------- Constellation Operating Services CA Baltimore, MD - partnership that operates QF projects --------------------------------------------------------------------------------------------------------------- COSI Ultra, Inc. MD Baltimore, MD - ownership interest in a partnership that operates and maintains QF facilities --------------------------------------------------------------------------------------------------------------- COSI Ultra II, Inc. MD Baltimore, MD - ownership interest in a partnership that operates and maintains QF facilities --------------------------------------------------------------------------------------------------------------- Constellation Operating Services International Cayman Islands Inactive --------------------------------------------------------------------------------------------------------------- Constellation Operating Services International Cayman Islands Inactive - I --------------------------------------------------------------------------------------------------------------- COAC de Guatemala, S.A. Guatemala Inactive --------------------------------------------------------------------------------------------------------------- COSI A/C Power, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- 10 --------------------------------------------------------------------------------------------------------------- COSI Central Wayne, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Gary I, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Gary II, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Puna, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Sunnyside, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Synfuels, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Synfuels VA1, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Synfuels WV1, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Synfuels WV2, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Synfuels WV3, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Ultra II, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- COSI Ultra, LLC DE Dissolved 3/20/02 --------------------------------------------------------------------------------------------------------------- Subsidiaries of Constellation Real Estate Group, Inc. ----------------------------------------------------- --------------------------------------------------------------------------------------------------------------- KMS Oldco, Inc. MD Inactive --------------------------------------------------------------------------------------------------------------- Constellation Real Estate, Inc. MD Columbia, MD - owns and develops real estate --------------------------------------------------------------------------------------------------------------- Constellation Health Services, Inc. MD Inactive --------------------------------------------------------------------------------------------------------------- CPI Church Street, Inc. MD Inactive --------------------------------------------------------------------------------------------------------------- Subsidiaries of Constellation Real Estate, Inc. ----------------------------------------------- --------------------------------------------------------------------------------------------------------------- AE4, LLC MD Howard County, MD - an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Annapolis Exchange Lot I, LLC MD Anne Arundel County, MD - member of an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Annapolis Exchange Lot II, LLC MD Anne Arundel County, MD - member of an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Annapolis Exchange Lot III, LLC MD Anne Arundel County, MD - member of an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Annapolis Exchange Lot IV, LLC MD Anne Arundel County, MD - member of an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Annapolis Exchange Lot V, LLC MD Anne Arundel County, MD - member of an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Annapolis Exchange Lot VI, LLC MD Anne Arundel County, MD - member of an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Annapolis Exchange Lot VII, LLC MD Anne Arundel County, MD - member of an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Annapolis Exchange Lot VIII, LLC MD Anne Arundel County, MD - member of an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Annapolis Exchange Lot IX, LLC MD Anne Arundel County, MD - member of an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Annapolis Exchange Lot X, LLC MD Anne Arundel County, MD - member of an LLC that owns & develops real estate --------------------------------------------------------------------------------------------------------------- Constellation Meadows I, LLC VA Chantilly, VA - LLC that owned real estate --------------------------------------------------------------------------------------------------------------- CPI Meadows One, Inc. MD Chantilly, VA - sole member of LLC that owned real estate --------------------------------------------------------------------------------------------------------------- 257 Oxon, LLC MD Prince George's County, MD - LLC that owns real estate --------------------------------------------------------------------------------------------------------------- CPI 257, Inc. MD Prince George's County, MD - sole member of an LLC that owns real estate --------------------------------------------------------------------------------------------------------------- CPI Brown's Wharf, Inc. MD Inactive --------------------------------------------------------------------------------------------------------------- CPI Gatespring II, Inc. MD Inactive --------------------------------------------------------------------------------------------------------------- 11 ---------------------------------------------------------------------------------------------------------- Hickory Ridge-Route 40 Limited MD Harford County, MD - partnership owning real Partnership estate ---------------------------------------------------------------------------------------------------------- CPI Hickory Ridge, Inc. MD Harford County, MD - ownership interest in a partnership owning real estate ---------------------------------------------------------------------------------------------------------- Jolly Knolls, LLC MD Annapolis Junction, MD - owns & develops real estate ---------------------------------------------------------------------------------------------------------- CPI Jolly Knolls, Inc. MD Annapolis Junction, MD - sole member of an LLC that owns real estate ---------------------------------------------------------------------------------------------------------- CPI Lynch, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Urbana - Route 355 Limited Partnership MD Frederick County, MD - owns & develops real estate ---------------------------------------------------------------------------------------------------------- CPI Montecito, Inc. MD Frederick County, MD - ownership interest in a partnership formed to own & develop real estate ---------------------------------------------------------------------------------------------------------- CPI National Business Park I, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- CPI National Business Park II, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- CPI National Business Park III, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- CPI Springfield, LLC MD Howard County, MD - LLC that invests and completes financial transactions of tangible and intangible assets ---------------------------------------------------------------------------------------------------------- CPI Partner, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Piney Orchard Master Partnership MD Odenton, MD - a partnership that owns Real Estate ---------------------------------------------------------------------------------------------------------- Piney Orchard Village Center, LLC MD Odenton, MD - an LLC with an ownership interest in a partnership that owns & develops Real Estate ---------------------------------------------------------------------------------------------------------- CPI Piney Orchard Village Center, Inc. MD Odenton, MD - sole member of an LLC formed to own & develop real estate ---------------------------------------------------------------------------------------------------------- CPI Springfield, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Timothy-Brandywine Associates Limited MD Prince George's County, MD - partnership Partnership formed to own & develop real estate ---------------------------------------------------------------------------------------------------------- CPO Brandywine Commerce Centre, Inc. MD Prince George's County, MD - ownership interest in a partnership that owns & develops real estate ---------------------------------------------------------------------------------------------------------- Accokeek-Brandywine Associates Limited MD Prince George's County, MD -partnership Partnership formed to own & develop real estate ---------------------------------------------------------------------------------------------------------- CPO Brandywine West, Inc. MD Prince George's County, MD - ownership interest in a partnership formed to own & develop real estate ---------------------------------------------------------------------------------------------------------- CPO Constellation Centre, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Piney Courts, Inc. MD Baltimore, MD - corporation formed to own & develop real estate ---------------------------------------------------------------------------------------------------------- First State Plaza Associates Limited DE Inactive Partnership ---------------------------------------------------------------------------------------------------------- KMS 1/st/ State Limited Partnership DE Inactive ---------------------------------------------------------------------------------------------------------- CPO First State, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- CPO Laurel Tower, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Montmott Associates Limited Partnership MD Frederick County, MD - partnership formed to own & develop real estate ---------------------------------------------------------------------------------------------------------- CPO Montecito Business Park, Inc. MD Frederick County, MD - ownership interest in a partnership formed to own & develop real estate ---------------------------------------------------------------------------------------------------------- Jolly Acres Limited Partnership MD Anne Arundel County, MD - partnership that owns real estate ---------------------------------------------------------------------------------------------------------- 12 ------------------------------------------------------------------------------------------------------------ CPO National Business Park, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ CPI PMK-NBP, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ CPI WES-NBP, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ Arbitrage Land Limited Partnership MD Anne Arundel County, MD - partnership that owns real estate ------------------------------------------------------------------------------------------------------------ CPO National Business Park (North), Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ CPI WES-Arbitrage, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ CPI PMK-Arbitrage, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ Peppercorn Land Limited Partnership MD Odenton, MD - partnership that owns real estate ------------------------------------------------------------------------------------------------------------ CPO Piney Orchard Land (East), Inc. MD Odenton, MD - ownership interest in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ CPO Three Centre Park, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ CPO Valley Centre, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ Jolly Acres Utilities, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ CPO Jolly Utilities, Inc. MD Inactive ------------------------------------------------------------------------------------------------------------ Parkway Crossing Associates, LLC VA Prince William County, VA - an LLC that owned real estate ------------------------------------------------------------------------------------------------------------ Piney Orchard Wastewater, Inc. DE Odenton, MD - owner of a waste water treatment facility ------------------------------------------------------------------------------------------------------------ CPO Piney Wastewater, Inc. MD Odenton, MD - ownership interest in a company that owns a waste water treatment facility ------------------------------------------------------------------------------------------------------------ Piney Orchard Employment Center Limited MD Odenton, MD - ownership interest in a Partnership partnership that owns real estate ------------------------------------------------------------------------------------------------------------ River Run at Piney Orchard Homeowner's MD Howard County, MD - homeowner's association Association, Inc. ------------------------------------------------------------------------------------------------------------ BOKS-13, Inc. MD Odenton, MD - ownership interest in a partnership that has an ownership percentage in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ Piney Orchard Limited Partnership MD Odenton, MD - ownership interest in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ CPO Piney Orchard, Inc. MD Odenton, MD - ownership interest in a partnership that has an ownership percentage in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ Piney Orchard Residential One Limited MD Odenton, MD - ownership interest in a Partnership partnership that owns real estate ------------------------------------------------------------------------------------------------------------ BOKS-14, Inc. MD Odenton, MD - ownership interest in a partnership that has an ownership interest in a partnership that owns real estate ------------------------------------------------------------------------------------------------------------ Piney Orchard Residential Two Limited MD Odenton, MD - ownership interest in a Partnership partnership that owns real estate ------------------------------------------------------------------------------------------------------------ BOKS-15, Inc. MD Odenton, MD - ownership interest in a partnership that has an ownership interest in a partnership that owns real estate. ------------------------------------------------------------------------------------------------------------ 13 -------------------------------------------------------------------------------------------------------- Piney Orchard Residential Three Limited MD Odenton, MD - ownership interest in a Partnership partnership that owns real estate -------------------------------------------------------------------------------------------------------- BOKS-16, Inc. MD Odenton, MD - ownership interest in a partnership that has an ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- Piney Orchard Town Center Limited MD Odenton, MD - ownership interest in a Partnership partnership that owns real estate -------------------------------------------------------------------------------------------------------- BOKS-12, Inc. MD Odenton, MD - ownership interest in a partnership that has an ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- PMK-1, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- PMK-2, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- PMK-3, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- PMK-4, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- PMK-5, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- PMK-6, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- WES-1, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- WES-2, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- WES-3, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- WES-4, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- WES-5, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- WES-6, Inc. MD Anne Arundel County, MD - ownership interest in a partnership that owns real estate -------------------------------------------------------------------------------------------------------- Onyx Realty Development Corporation DE Columbia, MD - real estate development -------------------------------------------------------------------------------------------------------- Bon Tasha Group MD Inactive -------------------------------------------------------------------------------------------------------- Parliament Investors MD Inactive -------------------------------------------------------------------------------------------------------- 2301 Russell Group MD Baltimore, MD - partnership that owns real estate -------------------------------------------------------------------------------------------------------- Rory & Company MD Inactive -------------------------------------------------------------------------------------------------------- Tri-Lake MD Inactive -------------------------------------------------------------------------------------------------------- Mil-Mar Associates MD Inactive -------------------------------------------------------------------------------------------------------- TDH Holdings MD Baltimore, MD - partnership that owns real estate -------------------------------------------------------------------------------------------------------- MJK Enterprises MD Inactive -------------------------------------------------------------------------------------------------------- Ariana Associates MD Inactive -------------------------------------------------------------------------------------------------------- Shawmut Associates MD Inactive -------------------------------------------------------------------------------------------------------- Fair Haven Enterprises MD Inactive -------------------------------------------------------------------------------------------------------- Comix MD Baltimore, MD - partnership that owns real estate -------------------------------------------------------------------------------------------------------- P.A. Investments MD Inactive -------------------------------------------------------------------------------------------------------- Greenberg Family Partnership MD Inactive -------------------------------------------------------------------------------------------------------- Marsky Brothers MD Inactive -------------------------------------------------------------------------------------------------------- Windsor Properties MD Inactive -------------------------------------------------------------------------------------------------------- 14 ---------------------------------------------------------------------------------------------------------- East Realty Holdings, Inc. DE Inactive ---------------------------------------------------------------------------------------------------------- Hopestill Holdings, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Cullen Construction, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Churchill Partnership MD Inactive ---------------------------------------------------------------------------------------------------------- Braces, Ltd. MD Baltimore, MD - ownership interest in a partnership that owns real estate ---------------------------------------------------------------------------------------------------------- Bristol Creek Corporation MD Inactive ---------------------------------------------------------------------------------------------------------- Elmdale Corporation MD Baltimore, MD - ownership interest in a partnership that owns real estate ---------------------------------------------------------------------------------------------------------- FNP Management Corporation MD Baltimore, MD - ownership interest in a company that owns real estate ---------------------------------------------------------------------------------------------------------- Franklin Holding, Inc. MD Baltimore, MD - ownership interest in a partnership that owns real estate ---------------------------------------------------------------------------------------------------------- Gray Saddle, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- J.R.S. Transportation NJ Baltimore, MD -owns real estate ---------------------------------------------------------------------------------------------------------- Paper Ridge Corporation MD Inactive ---------------------------------------------------------------------------------------------------------- Stefco, Inc. MD Baltimore, MD - ownership interest in a partnership that owns real estate ---------------------------------------------------------------------------------------------------------- Sunshine Light, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Terry Lane Corporation MD Baltimore, MD - ownership interest in a company that owns an interest in a partnership that owns real estate ---------------------------------------------------------------------------------------------------------- Woodlawn Investors, Inc. MD Inactive ----------------------------------------------------------------- ---------------------------------------- Mercury Welding, Inc. NJ Inactive ----------------------------------------------------------------- ---------------------------------------- Subsidiaries of Constellation Health Services, Inc. ---------------------------------------------------------------------------------------------------------- CHS Annapolis Assisted, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Aspenwood Associates Limited Partnership MD Inactive ---------------------------------------------------------------------------------------------------------- CHS Aspenwood, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- CHS Aspenwood II, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Aspenwood MRC Limited Partnership MD Inactive ---------------------------------------------------------------------------------------------------------- HeartHomes Residence at Bay Ridge I, LLC MD Inactive ---------------------------------------------------------------------------------------------------------- CHS Bay Ridge Assisted I, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- HeartHomes Residence at Bay Ridge II, LLC MD Inactive ---------------------------------------------------------------------------------------------------------- CHS Bay Ridge Assisted II, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Rose Hill Residence at Bay Ridge I, LLC MD Inactive ---------------------------------------------------------------------------------------------------------- Rose Hill Residence at Bay Ridge II, LLC MD Inactive ---------------------------------------------------------------------------------------------------------- HeartHomes Residence at Bay Ridge I, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- HeartHomes Residence at Bay Ridge II, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Rose Hill Residence at Lutherville, I, LLC MD Inactive ---------------------------------------------------------------------------------------------------------- Rose Hill Residence at Lutherville II, LLC MD Inactive ---------------------------------------------------------------------------------------------------------- HeartHomes Residence at Lutherville I, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- HeartHomes Residence at Lutherville II, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- CHS Beechwood Assisted, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- CHS Bel Air Assisted, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- Constellation Carolina I, LLC NC Inactive ---------------------------------------------------------------------------------------------------------- CHS Crescent Assisted, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- CHS Crofton Assisted, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- HeartFields Retirement Community - White Oak, MD Inactive LLC ---------------------------------------------------------------------------------------------------------- CHS Heartlands - White Oak, Inc. MD Inactive ---------------------------------------------------------------------------------------------------------- 15 --------------------------------------------------------------------------------------- CHS Laurel Assisted, Inc. MD Inactive --------------------------------------------------------------------------------------- HeartHomes Residence at Lutherville I, LLC MD Inactive --------------------------------------------------------------------------------------- CHS Lutherville Assisted I, Inc. MD Inactive --------------------------------------------------------------------------------------- HeartHomes Residence at Lutherville II, LLC MD Inactive --------------------------------------------------------------------------------------- CHS Lutherville Assisted II, Inc. MD Inactive --------------------------------------------------------------------------------------- CHS Nursing I, Inc. MD Inactive --------------------------------------------------------------------------------------- NOVA-Potomac, LLC MD Inactive --------------------------------------------------------------------------------------- CHS Pikesville Assisted, Inc. MD Inactive --------------------------------------------------------------------------------------- The HeartHaven Retirement Community - CT Inactive Seabury, LLC --------------------------------------------------------------------------------------- CHS Seabury, Inc. MD Inactive --------------------------------------------------------------------------------------- CHS Severna Park Assisted, Inc. MD Inactive --------------------------------------------------------------------------------------- Constellation Senior Services, Inc. MD Inactive --------------------------------------------------------------------------------------- HeartHomes Residence at Kellington Limited MD Inactive Partnership --------------------------------------------------------------------------------------- HeartHomes Residence at Kellington, Inc. MD Inactive --------------------------------------------------------------------------------------- HeartHomes Residence at Kellington II, Inc. MD Inactive --------------------------------------------------------------------------------------- HeartHomes Residence at Linthicum, LLC MD Inactive --------------------------------------------------------------------------------------- HeartHomes Residence at Linthicum, Inc. MD Inactive --------------------------------------------------------------------------------------- HeartHomes Residence at Piney Orchard Limited MD Inactive Partnership --------------------------------------------------------------------------------------- HeartHomes Residence at Piney Orchard, Inc. MD Inactive --------------------------------------------------------------------------------------- HeartHomes Residence at Piney Orchard II, Inc. MD Inactive --------------------------------------------------------------------------------------- HeartFields Retirement Community - Shenandoah, VA Inactive LLC --------------------------------------------------------------------------------------- HeartFields Retirement Community - Shenandoah, MD Inactive Inc. --------------------------------------------------------------------------------------- HeartFields Retirement Community - Bowie, LLC MD Inactive --------------------------------------------------------------------------------------- HeartFields Retirement Community - Bowie, Inc. MD Inactive --------------------------------------------------------------------------------------- HeartFields Retirement Community - Raleigh, LLC MD Inactive --------------------------------------------------------------------------------------- HeartFields Retirement Community - Raleigh, MD Inactive Inc. --------------------------------------------------------------------------------------- Heartlands Retirement Community - Ellicott MD Sold 10/25/02 City I, Inc. --------------------------------------------------------------------------------------- Heartlands Retirement Community - Ellicott MD Sold 10/25/02 City II, Inc. --------------------------------------------------------------------------------------- Heartlands Retirement Community - Frederick, MD Inactive LLC --------------------------------------------------------------------------------------- Heartlands Retirement Community - Frederick, MD Inactive Inc. --------------------------------------------------------------------------------------- The Heartlands Retirement Community - MD Inactive Fredericksburg, LLC --------------------------------------------------------------------------------------- The Heartlands Retirement Community - MD Inactive Fredericksburg, Inc. --------------------------------------------------------------------------------------- CHS Assisted I, Inc. MD Inactive --------------------------------------------------------------------------------------- The Heartlands Retirement Community - Severna MD Inactive Park Limited Partnership --------------------------------------------------------------------------------------- 16 ----------------------------------------------------------------------------------------------------------------- The Heartlands Retirement Community - MD Inactive Severna Park I, Inc. ----------------------------------------------------------------------------------------------------------------- Heartlands Retirement Community - MD Inactive Severna Park II, Inc. ----------------------------------------------------------------------------------------------------------------- HeartFields Retirement Community - Easton, LLC MD Inactive ----------------------------------------------------------------------------------------------------------------- HeartFields Retirement Community - Easton, Inc. MD Inactive ----------------------------------------------------------------------------------------------------------------- Subsidiaries of KMS Oldco, Inc. ---------------------------------------------------------------------------------------------------------------- Constellation Oldco, Inc. MD Howard County, MD - owner of office furniture and fixtures of KMS Oldco, Inc. ---------------------------------------------------------------------------------------------------------------- Subsidiaries of CPI Church Street, Inc. ----------------------------------------------------------------------------------------------------------------- Church Street Station, Inc. FL Inactive ----------------------------------------------------------------------------------------------------------------- Rosie O'Grady's Aviation, Inc. FL Inactive ----------------------------------------------------------------------------------------------------------------- Subsidiaries of Constellation Investments, Inc. ----------------------------------------------------------------------------------------------------------------- Luz Solar Partners IV, Ltd. CA Kramer Junction, CA - partnership that owns a QF facility ----------------------------------------------------------------------------------------------------------------- Luz Solar Partners V, Ltd. CA Kramer Junction, CA - owner of electric facility ----------------------------------------------------------------------------------------------------------------- Ultrabravo Oil Development Company CA CA - Owns an interest in two partnerships, each of which owns a QF facility ----------------------------------------------------------------------------------------------------------------- Triad Investors Corporation MD MD - Venture capital for medical research ----------------------------------------------------------------------------------------------------------------- Soda Lake Limited Partnership NV Fallon, NV - ownership interest in a QF facility as lessor in a sale lease-back ----------------------------------------------------------------------------------------------------------------- CII Solarpower I, Inc. MD Kramer Junction, CA - ownership interest in a partnership that owns a QF facility ----------------------------------------------------------------------------------------------------------------- Pacific Ultrapower Chinese Station CA Sonora, CA - partnership that owns a QF facility ----------------------------------------------------------------------------------------------------------------- Rio Bravo Fresno CA Fresno, CA - partnership that owns a QF facility ----------------------------------------------------------------------------------------------------------------- BHP Patriots Limited Partnership MD Baltimore, MD - partnership that owns real estate. ----------------------------------------------------------------------------------------------------------------- CII BHP Housing, Inc. MD Baltimore, MD - ownership interest in a partnership that owns real estate ----------------------------------------------------------------------------------------------------------------- Bruce Street Limited Partnership MD Baltimore, MD - partnership that owns real estate ----------------------------------------------------------------------------------------------------------------- CII BRS Housing, Inc. MD Baltimore, MD - ownership interest in a partnership that owns real estate ----------------------------------------------------------------------------------------------------------------- Neighborhood Rental Limited Partnership MD Baltimore, MD - partnership that owns real estate ----------------------------------------------------------------------------------------------------------------- CII NRS Housing, Inc. MD Baltimore, MD - ownership interest in a partnership that owns real estate ----------------------------------------------------------------------------------------------------------------- The New Parkman Housing Limited Partnership MD Baltimore, MD - partnership that owns real estate ----------------------------------------------------------------------------------------------------------------- CII New Parkman, Inc. MD Baltimore, MD - ownership interest in a partnership that owns real estate ----------------------------------------------------------------------------------------------------------------- Ace Power Partners CA Trona, CA - Ownership interest in a partnership that owns a QF facility ----------------------------------------------------------------------------------------------------------------- 17 -------------------------------------------------------------------------------------------------------------------- ACE Cogeneration Company CA Trona, CA - partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CE ACE Limited Partnership MD Trona, Ca - ownership interest in a partnership that has an ownership interest in a partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CD Empire I, Inc. MD Inactive -------------------------------------------------------------------------------------------------------------------- CD Empire II, Inc. MD Inactive -------------------------------------------------------------------------------------------------------------------- Rio Bravo Jasmin CA Kern Co., CA - partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CD Jasmin I, Inc. MD Kern Co., CA - ownership interest in a partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CD Jasmin II, Inc. MD Kern Co., CA - ownership interest in a partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CD Jasmin III, Inc. MD Kern Co., VA - ownership interest in a partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CD Malacha I, Inc. MD Muck Valley, CA - ownership interest in a partnership that owns a EWG/QF facility -------------------------------------------------------------------------------------------------------------------- Ormesa Geothermal II CA Imperial Valley, CA - trust that owns a QF facility. Sold in 2002 -------------------------------------------------------------------------------------------------------------------- CD Ormesageo II-A, Inc. MD Inactive -------------------------------------------------------------------------------------------------------------------- CD Ormesageo II-B, Inc. MD Inactive -------------------------------------------------------------------------------------------------------------------- CD Ormesageo II-C, Inc. MD Inactive -------------------------------------------------------------------------------------------------------------------- CD Ormesageo IE-A, Inc. MD VA, OH and WV - member of an LLC that has an ownership interest in a partnership that owns LLCs that own coal processing facilities -------------------------------------------------------------------------------------------------------------------- CD Ormesageo IE-B, Inc. MD VA, OH and WV - member of an LLC that has an ownership interest in a partnership that owns LLCs that own coal processing facilities -------------------------------------------------------------------------------------------------------------------- CD Ormesageo IE-C, Inc. MD VA, OH and WV - member of an LLC that has an ownership interest in a partnership that owns LLCs that own coal processing facilities -------------------------------------------------------------------------------------------------------------------- Rio Bravo Poso CA Kern Co., CA - partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CD Poso I, Inc. MD Kern Co., CA - ownership interest in a partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CD Poso II, Inc. MD Kern Co., CA - ownership interest in a partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CD Poso III, Inc. MD Kern Co., CA - ownership interest in a partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- Rio Bravo Rocklin CA Placer Co., CA - partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CD SEGS V, Inc. MD Kramer Junction, CA - ownership interest in a partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- LUZ Solar Partners VI, Ltd. CA Kramer Junction, CA - partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- CD SEGS VI, Inc. MD Kramer Junction, CA - ownership interest in a partnership that owns a QF facility -------------------------------------------------------------------------------------------------------------------- Star Group Stillwater I Geothermal Partners NV Fallon, NV - partnership that is the lessor in the sale/leaseback of a QF facility -------------------------------------------------------------------------------------------------------------------- Northern Asset Hedged Utility Fund MN Minnesota - investment Fund -------------------------------------------------------------------------------------------------------------------- 18 -------------------------------------------------------------------------------- CP ACE, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP Chinese Station, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP Empire, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP Fresno, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP Jasmin, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP Malacha, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP Ormesa II, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP Poso, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP Rocklin, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP SEGS IV, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP SEGS V, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP SEGS VI, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP Soda, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- CP Stillwater, LLC DE Dissolved 3/20/02 -------------------------------------------------------------------------------- In addition, Constellation Energy Group, Inc. owns 100% of the stock of 46 shell, inactive subsidiaries incorporated in each state except Maryland, Ohio, Pennsylvania and Hawaii under the name Constellation Energy Group, Inc. 2. A brief description of the properties of claimant and each of its subsidiary public utility companies used for the generation, transmission, and distribution of electric energy for sale, or for the production, transmission, and distribution of natural or manufactured gas, indicating the location of principal generating plants, transmission lines, producing fields, gas manufacturing plants, and electric and gas distribution facilities, including all such properties which are outside the State in which claimant and its subsidiaries are organized and all transmission or pipelines which deliver or receive electric energy or gas at the borders of such State. Electric Baltimore Gas and Electric Company (BGE), a subsidiary public utility of claimant, owns 1,268 miles of transmission consisting of 215 circuit miles of 500 kV lines; 320 circuit miles of 230 kV lines; 54 circuit miles of 138 kV lines, and 679 circuit miles of 115kV lines, located throughout Central Maryland. BGE's 500 kV transmission consists of two circuits which connect to the Calvert Cliffs plant to BGE load center as well as five circuits which interconnect with and are part of the Pennsylvania - New Jersey - Maryland (PJM) 500 kV system. These circuits form a partial 500 kV transmission ring around the Baltimore metropolitan area. Additionally, the Calvert Cliffs-Chalk Point, Calvert Cliffs-Waugh Chapel, and Waugh Chapel-High Ridge circuits are part of the "500 kV Loop", a full 500 kV transmission ring around the Washington metropolitan area with several transformation points to 230 kV. 19 BGE's 230 kV transmission connects at two locations via transformation with the 500 kV system and at ten locations via transformation with our 115 kV network, throughout Central Maryland. BGE owns approximately 40,715 conductor miles of distribution lines, including 19,915 conductor miles of overhead lines and 20,800 conductor miles of underground lines, throughout Central Maryland. These figures only include circuits operating at 34.5, 13.8 and 4 kV. BGE's transmission and distribution systems are comprised of 211 company owned locations with 427 installed transformers. Total transformer capacity is approximately 28,252 MVA throughout Central Maryland. These figures do not include BGE-owned facilities located on customer premises. In addition, generator step-up and other customer-owned transformers are not included in these figures. BGE's transmission system is connected to other systems via the following transmission tie lines: (1) two connections at the Maryland-Pennsylvania state line near Delta, PA with PECO Energy Company transmission lines. (2) four connections with the Pennsylvania Power and Light Co. at the Maryland-Pennsylvania state line, three connections near Graceton, Md., and one near Norrisville, Md. (3) one connection with the Metropolitan Edison Co. at the Maryland- Pennsylvania state line near Twin Farms, Md. (4) six active connections with Potomac Electric Power Company, two near Burtonsville, Md., two near Bowie, Md., one near Mt Airy, Md., and one near Eagle Harbor, Md. Gas BGE owns 9 gate stations located at various points in its service territory where natural gas is received from suppliers. Natural gas is delivered to customers through approximately 6,120 miles of mains and 6,920 miles of service lines covering 743 square miles of territory. BGE has . a liquefied natural gas facility for the liquefaction and storage of natural gas with a total storage capacity of 1,092,977 Dth and a daily capacity of 311,500 Dth located at Spring Gardens, MD, and . a propane air facility with a total storage capacity equivalent to 554,200 Dth and a daily capacity of 85,000 Dth located at Notch Cliff, MD. BGE's current pipeline firm transportation entitlements to serve our firm loads are 284,053 Dth per day during the winter period and 259,053 Dth during the summer period. BGE has 235,080 Dth per day of pipeline natural gas storage entitlements. 20 3. The following information for the last calendar year with respect to claimant and each of its subsidiary public utility companies: (a) Number of kwh. (in thousands) of electric energy sold (at retail or wholesale), and Mcf. (in thousands) of natural or manufactured gas distributed at retail. BGE ELECTRIC RETAIL WHOLESALE KWH Amount KWH Amount (in thousands) (in thousands) ------------------------- ----------------- Total electric sold by state Maryland 31,729,000 1,925,669 - - Electric sold outside of Md. - - - - Total electric sold 31,729,000 $1,925,669 - - =========== ========== ======== ====== GAS RETAIL Mcf Amount (in thousands) ------------------------------ Total gas distributed at retail by state Maryland 106,676 $500,404 (b) Number of kwh. of electric energy and Mcf. of natural or manufactured gas distributed at retail outside the State in which each such company is organized. BGE Elec: none Gas: none (c) Number of kwh. (in thousands) of electric energy and Mcf. (in thousands) of natural or manufactured gas sold at wholesale outside the State in which each such company is organized, or at the State line. 21 BGE ELECTRIC - See 3(a) GAS WHOLESALE Mcf Amount (in thousands) ------------------------- Gas distributed at wholesale by state outside of Md. Delaware 618 $ 2,483 District of Columbia 3,817 14,748 Kentucky 30 110 Louisiana 288 812 New Jersey 3,684 14,178 Ohio 39 141 Pennsylvania 971 3,135 Virginia 1,867 6,943 ---------- ---------- Total gas distributed at Wholesale outside of Md. 11,314 $ 42,550 ========== ========== (d) Number of kwh. (in thousands) of electric energy and Mcf. (in thousands) of natural or manufactured gas purchased outside the State in which each such company is organized or at the State line. BGE Elec: none GAS PURCHASED Mcf Amount (in thousands) ------------------------- Total gas purchased by state outside of Md. Louisiana 47,085 $ 155,262 Michigan 1,909 6,188 Pennsylvania 6,916 22,462 Texas 1,415 4,746 22 West Virginia 7,103 24,538 ---------- ---------- Total gas purchased Outside Md. 64,428 $ 213,196 ========== ========== 4. The following information for the reporting period with respect to claimant and each interest it holds directly or indirectly in an EWG or a foreign utility company, stating monetary amounts in United States dollars: (a) Name, location, business address and description of the facilities used by the EWG or foreign utility company for the generation, transmission and distribution of electric energy for sale or for the distribution at retail of natural or manufactured gas. (1) Safe Harbor Water Power Corporation (Safe Harbor) 1 Powerhouse Road Conestoga, PA Safe Harbor is a hydroelectric plant located on the Susquehanna River at Safe Harbor, Pennsylvania, jointly owned by Constellation Power Source Generation, Inc. (CPSG) and Pennsylvania Power & Light Holtwood ("Holtwood"). CPSG owns two-thirds of the outstanding capital stock, including one-half of the voting stock of Safe Harbor. It includes 14 generating units. At maximum output, the plant can generate approximately 10 million kWh of electrical energy in one day. The average yearly generation is 1,078,073,000 kWh. The total varies depending upon yearly average river flow. The total output of Safe Harbor is supplied to co-owners Holtwood and CPSG in accordance with their ownership interest to supplement the power flow into the Pennsylvania-New Jersey-Maryland interconnection (PJM). Safe Harbor power is used primarily to meet peak demands for electricity. Continuous operation occurs when river flow equals or exceeds the plant's maximum water handling capacity of 110,000 cubic feet per second. (2) Empresa Electrica Valle Hermoso S.A. ("EVH") Calle Tarija N 1425 Casi Esq. Adela Zamudio Cala Cala Casilla 5645, Cochabamba, Boliva This entity was sold on December 5, 2002. 23 (3) The Bolivian Generating Group, LLC Registered office is at Ugland House, P.O. Box 309, George Town, Grand Cayman. This entity was sold on December 5, 2002. (4) C&O Bolivia, LLC Calle Tarija N 1425 Casi Esq. Adela Zamudio Cala Cala Casilla 5645 Cochabama, Bolivia This entity was sold on December 5, 2002. (5) Compania Forca E Luz Cataguazes-Leopoldina ("Cataguazes") and Cia De Electricidada De Nova Friburgo ("Friburgo") Avenita Presidente Vargas, 463 4/th/ Floor Rio de Janeiro, RJ, Brazil CEP 20086-900 Located in Minas Gerais, Brazil Cataguazes is an electric utility serving the southeastern portion of the State of Minas Gerais, Brazil. Cataguazes serves approximately 214,000 customers. Cataguazes serves a total of approximately 273,000 customers. The utility assets of Cataguazes comprise approximately 13,440 km of distribution lines, 663 km of transmission lines, and related equipment, including substation capacity of 618 MVA. Cataguazes also owns a number of small hydroelectric generating plants with an aggregate generating capacity of approximately 19 megawatts, as well as a hydroelectric project that is under construction and that will have a generating capacity of approximately 20 megawatts. Cataguazes also holds a 100% interest in Multiagro, S.A. an agricultural company and a 21.56% interest in Ind. Cataguazes a textile company. 24 (6) ELEKTRA NORESTE, S.A. (formerly known as Empresa de Distribucion Electrica Noreste, S.A.) Elektra Noreste, S.A. Edificio Hatillo, Torre A, Piso 7 Avenida Cuba y Avenida Justo Arosemena Apartado 5285 Panama 5, Panama City Republic of Panama Elektra Noreste, S.A. ("Noreste") is the second largest distribution company in the Republic of Panama. Noreste's service territory is 2,600 square miles, and includes the entire Eastern half of the country, a portion of the capital, Panama City and all of the second largest city, Colon. A portion of Noreste's service territory will also include parts of the Eastern half of the Panama Canal Zone reclaimed by the Republic of Panama. Noreste serves approximately 206,477 customers that consume a total of 2,248 GWH of energy annually, and is one of the three electric distribution companies formed out of the restructuring and privatization of the government owned utility, Instituto de Recursos Hidraulicos y Electrificacion. Noreste currently has approximately 503 employees, and its assets consist largely of all the distribution lines and substations within its 2,600 square mile service territory. Norreste purchases the bulk of its electricity needs from the now privatized generation companies under power purchase contracts negotiated with the oversight of the regulator. Elektra is able to self-generate up to 15% of its energy needs. (7) Malacha Hydro Limited Partnership, owner of the Muck Valley Hydroelectric Project 701 Morrison - Knudsen Drive Suite 300 Boise, Idaho 83712 The Muck Valley Hydroelectric Project is located on the Pit River near Fall River Mills in Lassen County, California. The Muck Valley Hydroelectric Project is an approximately 35 MW run of the river hydroelectric facility. (8) CD ACE I, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD ACE I, Inc. holds a 1% general partnership and 19.7% limited partnership interest in CE ACE Limited Partnership, which holds a 35% general partnership interest in ACE Power Partners. ACE Power Partners holds a 90% general partnership interest in 25 ACE Cogeneration Company, which owns a 108 MW electric generating facility located in Trona, California. (9) CD ACE II, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD ACE II, Inc. holds a 20.4% limited partnership interest in CE ACE Limited Partnership, which holds a 35% general partnership interest in ACE Power Partners. ACE Power Partners holds a 90% general partnership interest in ACE Cogeneration Company, which owns a 108 MW electric generating facility located in Trona, California. (10) CD ACE III, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD ACE III, Inc. holds a 30.6% limited partnership interest in CE ACE Limited Partnership, which holds a 35% general partnership interest in ACE Power Partners. ACE Power Partners holds a 90% general partnership interest in ACE Cogeneration Company, which owns a 108 MW electric generating facility located in Trona, California. (11) CE ACE IV, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CE ACE IV, Inc. holds a 42.5% general partnership interest in ACE Operating Partners, which holds a 10% limited partnership interest in ACE Cogeneration Company, which owns a 108 MW electric generating facility located in Trona, California. (12) Sunnyside II, L.P. 111 Market Place, Suite 200 Baltimore, Maryland 21202 Sunnyside II, L.P. holds a 50% interest in Sunnyside Cogeneration Associates, which owns a 51 MW waste coal-fired electric generating facility located in Carbon County, Utah. 26 (13) University Park Energy, LLC 111 Market Place, Suite 200 Baltimore, Maryland 21202 University Park Energy, LLC owns a 300 MW natural gas-fueled electric generating facility located in University Park, Illinois. (14) Wolf Hills Energy, LLC 111 Market Place, Suite 200 Baltimore, Maryland 21202 Wolf Hills Energy, LLC owns a 250 MW natural gas-fueled electric generating facility located in Washington County, Virginia. (15) CD Panther Partners, L.P. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD Panther Partners, L.P. holds a 50% interest in Panther Creek Partners, which is the facility lessee under a sale/leaseback arrangement for a 86 MW waste coal-fired electric generating facility located in Carbon County, Pennsylvania. (16) CD Rocklin I, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD Rocklin I, Inc. holds a 10% general partnership interest in Rio Bravo Rocklin, which owns a biomass-fired small power production facility located in Rocklin, California. (17) CD Rocklin II, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD Rocklin II., Inc. holds a 15% general partnership interest in Rio Bravo Rocklin, which owns a biomass-fired small power production facility located in Rocklin, California. 27 (18) CD Rocklin III, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD Rocklin III, Inc. holds a 25% general partnership interest in Rio Bravo Rocklin, which owns a biomass-fired small power production facility located in Rocklin, California. (19) CD Soda I, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD Soda I, Inc. holds a 1% general partnership interest and 24% limited partnership interest in the Soda Lake Limited Partnership, which owns a 17 MW geothermal small power production facility located in Churchill County, Nevada. The facility is leased by Soda Lake Limited Partnership to AMOR IX Corporation. (20) CD Soda II, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD Soda II, Inc. holds a 25% limited partnership interest in the Soda Lake Limited Partnership, which owns a 17 MW geothermal small power production facility located in Churchill County, Nevada. The facility is leased by Soda Lake Limited Partnership to AMOR IX Corporation. (21) CD Soda III, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD Soda III, Inc. owns 50% of the issued and outstanding shares of AMOR IX Corporation. AMOR IX Corporation leases from Soda Lake Limited Partnership a 17 MW geothermal small power production facility located in Churchill County, Nevada. (22) CD Stillwater-A, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD Stillwater-A, Inc. holds a 10% general partnership interest in the Star Group Stillwater I Geothermal Partners, which owns a 12.5 MV geothermal small power 28 productions facility located in Churchill County, Nevada. The facility is leased by Star Group Stillwater I Geothermal Partners to Stillwater Geothermal I. (23) CD Stillwater-B, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD Stillwater-B, Inc. holds a 15% general partnership interest in the Star Group Stillwater I Geothermal Partners, which owns a 12.5 MV geothermal small power productions facility located in Churchill County, Nevada. The facility is leased by Star Group Stillwater I Geothermal Partners to Stillwater Geothermal I. (24) CD Stillwater-C, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CD Stillwater-C, Inc. holds a 25% general partnership interest in the Star Group Stillwater I Geothermal Partners, which owns a 12.5 MV geothermal small power productions facility located in Churchill County, Nevada. The facility is leased by Star Group Stillwater I Geothermal Partners to Stillwater Geothermal I. (25) CE Central Wayne Energy Recovery, Limited Partnership 111 Market Place, Suite 200 Baltimore, Maryland 21202 CE Central Wayne Energy Recovery, Limited Partnership holds a 49% limited partnership interest in Central Wayne Energy Recovery Limited Partnership, which owns a 22 MW municipal solid waste-fueled electric generating facility located in Wayne County, Michigan. (26) CE Colver I, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CE Colver I, Inc. holds a 1% general partnership interest in Inter-Power/AhlCon Partners, L.P., which is the facility lessee under a sale/lease-back arrangement for a 110 MW waste coal-fired electric generating facility located in Cambria County, Pennsylvania. 29 (27) CE Colver Limited Partnership 111 Market Place, Suite 200 Baltimore, Maryland 21202 CE Colver Limited Partnership holds a 24% limited partnership interest in Inter-Power/AhlCon Partners, L.P., which is the facility lessee under a sale/lease-back arrangement for a 110 MW waste coal-fired electric generating facility located in Cambria County, Pennsylvania. (28) CE Puna Limited Partnership 111 Market Place, Suite 200 Baltimore, Maryland 21202 CE Puna Limited Partnership holds a 50% general partnership interest in Puna Geothermal Venture, which owns a geothermal electric generating facility located in Hawaii. (29) CE Wayne I, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CE Wayne I, Inc. holds a 1% general partnership interest in Central Wayne Energy Recovery Limited Partnership, which owns a 22 MW municipal solid waste-fueled generating facility located in Wayne County, Michigan. (30) CII Woodpower I, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CII Woodpower I, Inc. holds a 45% general partnership interest in Pacific-Ultrapower Chinese Station, which owns a biomass-fired electric generating facility located in Tuolome County, California. (31) CII Woodpower II, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 CII Woodpower II, Inc. holds a 50% partnership interest in Rio Bravo Fresno, which owns a biomass-fired electric generating facility located in Fresno, California. 30 (32) COSI Central Wayne, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 COSI Central Wayne, Inc. manages, operates and maintains a 22 MW municipal solid waste-fueled electric generating facility located in Wayne County, Michigan, pursuant to a Management, Operation and Maintenance Agreement with Central Wayne Energy Recovery Limited Partnership, which owns the facility. (33) COSI Puna, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 COSI Puna, Inc. operates and maintains a 30 MW geothermal electric generating facility located in Hawaii pursuant to an agreement with Puna Geothermal Venture, which owns the facility. (34) COSI Sunnyside, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 COSI Sunnyside, Inc. operates and maintains a 51 MW waste coal-fired electric generating facility located in Carbon County, Utah, pursuant to an Operations and Maintenance Services Agreement with Sunnyside Cogeneration Associates, which owns the facility. (35) Handsome Lake Energy, LLC 111 Market Place, Suite 200 Baltimore, Maryland 21202 Handsome Lake Energy, LLC owns a 250 MW natural gas-fueled electric generating facility located in Venango County, Pennsylvania. (36) High Desert Power Project, LLC 111 Market Place, Suite 200 Baltimore, Maryland 21202 High Desert Power Project, LLC is supervisory agent of construction and will lease a 850 MW natural gas-fueled combined cycle generating facility located in San Bernardino County, California, which is currently under construction and is expected to commence commercial operation in the year 2003. 31 (37) Big Sandy Peaker Plant, LLC 111 Market Place, Suite 200 Baltimore, Maryland 21202 Big Sandy Peaker Plant, LLC entered into a sale/leaseback arrangement with a governmental authority of Wayne County, West Virginia ("County") whereby the County took title to a 300 MW natural gas-fueled electric generating facility located in Wayne County, West Virginia. The County leases the facility back to Big Sandy Peaker Plant, LLC under a long-term lease that provides it with care, custody and control over the facility and an option to repurchase the facility at any time for $1. (38) Aques Investment Corporation II 111 Market Place, Suite 200 Baltimore, Maryland 21202 This entity was sold in April, 2002. (39) Constellation Operating Services, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 Constellation Operating Services, Inc. provides operating and maintenance services to the Pacific-Ultrapower Chinese Station, a 22 MW biomass facility in Tuolome County, California; Rio Bravo Fresno, 24 MW biomass facility in Fresno, California; Rio Bravo Jasmin 32 MW cogeneration facility in Kern County, California; Rio Bravo Rocklin 24 MW biomass facility in Rocklin, California; Rio Bravo Poso 32 MW cogeneration facility in Kern County, California; AMOR IX, the lessee of a 17MW geothermal facility owned by Soda Lake Limited Partnership in Churchill County, Nevada; Stillwater Geothermal I, the lessee of a 12.5 MW geothermal facility owned by Star Group Stillwater I Geothermal Partners in Churchill County, Nevada through October 2002; Panther Creek Partners the lessee of an 86 MW wastecoal-fired facility in Carbon County, Pennsylvania; and it also supplies certain operation personnel to Malacha Hydro Limited Partnership (under a secondary agent) which owns the Muck Valley Hydroelectric Project in Lasser County, California. 32 (40) Holland Energy, LLC 111 Market Place, Suite 200 Baltimore, Maryland 21202 Holland Energy, LLC owns a 665 MW gas-fired combined cycle generating facility located in Shelby County, Illinois which commenced operation in the summer of 2002. (41) Oleander Power Project, Limited Partnership 111 Market Place, Suite 200 Baltimore, Maryland 21202 Oleander Power Project, Limited Partnership is an up to 875 MW gas and oil fired simple cycle facility located in Brevard County, Florida, which commenced operation in the spring of 2002. (42) COSI A/C Power, Inc. 111 Market Place, Suite 200 Baltimore, Maryland 21202 COSI A/C Power, Inc. holds a 50% general partnership interest in A/C Power, a Maryland general partnership which operates and maintains the Colver waste coal facility located in Cambria County, Pennsylvania pursuant to agreements with InterPower/Ahlcon Partners, L.P., the facility lessee under a sale/lease-back arrangement for the facility. (43) Rio Nogales Power Project, L.P. 111 Market Place, Suite 200 Baltimore, Maryland 21202 Rio Nogales Power Project L.P. is the owner of a 800 MW natural gas-fired combined cycle power facility located in Sequin, Texas, which commenced operation in the Spring of 2002. 33 (44) Calvert Cliffs Nuclear Power Plant, Inc. 1997 Annapolis Exchange Parkway Suite 500 Annapolis, Maryland 21401 Owns the Calvert Cliffs nuclear power plant located in Lusby, Maryland. It has a 1,690 MW generating capacity and sells its output to Constellation Power Source, Inc., an affiliate. (45) Constellation Power Source Generation, Inc. (CPSGI) 111 Market Place, Suite 200 Baltimore, Maryland 21202 Owns the following generating plants: Brandon Shores, a coal fueled 1,300 MW facility located in Anne Arundel County, Maryland; Herbert A. Wagner, a coal, oil and gas fueled 1,020 MW facility located in Anne Arundel County, Maryland; Charles P. Crane, a coal and oil fueled, 400 MW facility located in Baltimore County, Maryland; Gould Street, an oil and gas fueled 104 MW facility located in Baltimore City, Maryland; Riverside, an oil and gas fueled 151 MW facility located in Baltimore County, Maryland; Keystone, a coal fueled 1,711 MW facility of which CPSGI is entitled to 359 MW located in Armstrong and Indiana Counties, Pennsylvania; Conemaugh, a coal fueled 1,711 MW facility of which CPSGI is entitled to 181 MW located in Indiana County, Pennsylvania; Perrryman, an oil and gas fueled 350 MW facility located in Harford County, Maryland; Notch Cliff, a gas fueled 128 MW facility located in Baltimore County, Maryland; Westport, a gas fueled 121 MW facility located in Baltimore City, Maryland; and Philadelphia Road, an oil fueled 64 MW facility located in Baltimore City, Maryland. (46) Nine Mile Point Nuclear Station, LLC 1997 Annapolis Exchange Parkway Suite 500 Annapolis, Maryland 21401 Owns 100% of Nine Mile 1 and 82% of Nine Mile 2 located in Scriba, New York. Unit 1 and Unit 2 have a 609 MW and a 1,148MW generating capacity, respectively. Nine Mile Point Nuclear Station, LLC's total ownership is 1,550 MW of generating capacity. 34 (47) Empressa Rio Electrico Sociedad Anonima c/o Empressa Valle Hormoso S.A. Calle Tarija N 1425 Cochabamba, Bolivia Operates the 18.5MW hydro-electric facility Plautas Hydroelectrics Rio Yura. (b) Name of each system company that holds an interest in such EWG or foreign utility company; and description of the interest held. (1) Safe Harbor Description of System Company Interest Held -------------- ------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises,Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power Source Holdings, Inc. Constellation Power Source 100% of Constellation Power Holdings, Inc. Source Generation, Inc. Constellation Power Source Owns two thirds stock Generation, Inc. one half voting stock of Safe Harbor (2) Empresa Electrica Valle Hermoso S.A. (Sold in 2002) (3) The Bolivian Generating Group, LLC (Sold in 2002) (4) C&O Bolivia, LLC (Sold in 2002) 35 (5) Compania Forca E Luz Cataguazes - Leopoldina and Cia De Electricidad De Nova Friburgo System Company Description of Interest Held -------------- ---------------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of Constellation Power International Investments, Ltd. Constellation Power 16.5% ownership of The Latin International Investments, Ltd. America Energy and Electricity Fund I, L.P. 8.291% of Fondelec General Partners, L.P. Fondelec General Partners, L.P. 1% of the Latin American Energy and Electricity Fund I, L.P. The Latin America Energy and 7.06% ownership of Compania Electricity Fund I, L.P. Forca E Luz Cataguazes - Leopoldina and Cia De Electricidad De Nova Friburgo (6) ELECTRA NORESTE, S.A. (formerly known as Empresa de Distribucion Electrica Noreste, S.A.) System Company Description of Interest Held -------------- ---------------------------- Constellation Energy Group, 100% ownership of Inc. Constellation Enterprises, Inc. Constellation Enterprises, 100% ownership of Inc. Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. 36 Constellation Power, Inc. 100% ownership of Constellation Power International Investments, Ltd. 100% ownership of CP Panama Investors, LLC Constellation Power 100% of Class B common stock of International Investments, CP Panama I, S.A. Ltd. 25% of Class A common stock of Panama Distribution Group, S.A. CP Panama Investors, LLC 100% of Class A. common stock of CP Panama I, S.A. CP Panama I, S.A. 55% of Class A common stock and 80% of the Class B common stock Panama Distribution Group, S.A. Panama Distribution Group, 51% of Elektra Noreste, S.A. S.A. (7) Malacha Hydro Limited Partnership System Company Description of Interest Held -------------- ---------------------------- Constellation Energy Group, 100% ownership of Inc. Constellation Enterprises, Inc. Constellation Enterprises, 100% ownership of Inc. Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, 100% ownership of CD Inc. Malacha I, Inc. CD Malacha I, Inc. 1% General Partner and up to 49% Limited Partner of Malacha Hydro Limited Partnership 37 (8) CD ACE I, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, Inc. 100% ownership of CD ACE I, Inc. (9) CD ACE II, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments Inc. 100% ownership of CD ACE II, Inc. (10) CD ACE III, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. 38 Constellation Investments Inc. 100% ownership of CD ACE III, Inc. (11) CD ACE IV, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of CD ACE IV, Inc. (12) Sunnyside II, L.P. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of CP Sunnyside I, Inc. CP Sunnyside I, Inc. 100% ownership of Sunnyside II, Inc. and Sunnyside III, Inc. Sunnyside II, Inc. 95% general partner of Sunnyside II, L.P. Sunnyside III, Inc. 5% limited partner of Sunnyside II, L.P. 39 (13) University Park Energy, LLC System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% Member of University Park Energy, LLC (14) Wolf Hills Energy, LLC System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% Member of Wolf Hills Energy, LLC (15) CD Panther Partners, L.P. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. 40 Constellation Power, Inc. 100% ownership of CD Panther II, Inc. and 50% ownership of Panther Creek Holdings, Inc. Panther Creek Holdings, Inc. 100% ownership of CD Panther I, Inc. and Pegasus Power Company, Inc. CD Panther I, Inc. 1% general partner of CD Panther Partners, L.P. CD Panther II, Inc. 99% limited partner of CD Panther Partners, L.P. (16) CD Rocklin I, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, Inc. 100% ownership of CD Rocklin I, Inc. (17) CD Rocklin II, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. 41 Constellation Investments, Inc. 100% ownership of CD Rocklin II, Inc. (18) CD Rocklin III, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, Inc. 100% ownership of CD Rocklin III, Inc. (19) CD Soda I, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, Inc. 100% ownership of CD Soda I, Inc. (20) CD Soda II, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. 42 Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, Inc. 100% ownership of CD Soda II, Inc. (21) CD Soda III, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of CD Soda III, Inc. (22) CD Stillwater-A, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, Inc. 100% ownership of CD Stillwater-A, Inc. 43 (23) CD Stillwater-B, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, Inc. 100% ownership of CD Stillwater-B, Inc. (24) CD Stillwater-C, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, Inc. 100% ownership of CD Stillwater-C, Inc. (25) CE Central Wayne Energy Recovery, Limited Partnership System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. 44 Constellation Power, Inc. 100% ownership of CE Wayne I, Inc. and CE Wayne II, Inc. CE Wayne I, Inc. 1% general partner of CE Central Wayne Energy Recovery Limited Partnership CE Wayne II, Inc. 99% limited partner of CE Central Wayne Energy Recovery Limited Partnership (26) CE Colver I, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of CE Colver I, Inc. (27) CE Colver Limited Partnership System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of CE Colver II, Inc. and CE Colver III, Inc. 45 CE Colver II, Inc. 99% limited partnership interest in CE Colver Limited Partnership CE Colver III, Inc. 1% general partnership interest in CE Colver Limited Partnership (28) CE Puna Limited Partnership System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of CE Puna I, Inc. and CE Puna II, Inc. CE Puna I, Inc. 50% general partnership interest in CE Puna Limited Partnership CE Puna II, Inc. 50% limited partnership interest in CE Puna Limited Partnership (29) CE Wayne I, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of CE Wayne I, Inc. 46 (30) CII Woodpower I, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, Inc. 100% ownership of CII Woodpower I, Inc. (31) CII Woodpower II, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Investments, Inc. Constellation Investments, Inc. 100% ownership of CII Woodpower II, Inc. (32) COSI Central Wayne, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. 47 Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of Constellation Operating Services, Inc. Constellation Operating Services, Inc. 100% ownership of COSI Central Wayne, Inc. (33) COSI Puna, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of Constellation Operating Services, Inc. Constellation Operating Services, Inc. 100% ownership of COSI Puna, Inc. (34) COSI Sunnyside, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of Constellation Operating Services, Inc. 48 Constellation Operating Services, Inc. 100% ownership of COSI Sunnyside, Inc. (35) Handsome Lake Energy, LLC System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% membership interest in Handsome Lake Energy, LLC (36) High Desert Power Project, LLC System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of CP High Desert I, Inc. and CP High Desert II, Inc. CP High Desert I, Inc. 1% general partnership interest in CP High Desert Limited Partnership and 1% membership interest in High Desert Power Project, LLC CP High Desert II, Inc. 99% limited partnership interest in CP High Desert Limited Partnership 49 CP High Desert Limited Partnership 99% membership interest in High Desert Power Project, LLC (37) Big Sandy Peaker Plant, LLC System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% membership in Big Sandy Peaker Plant, LLC (38) Aques Investment Corporation II (Sold in 2002) (39) Constellation Operating Services System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of Constellation Operating Services, Inc. Constellation Operating Services, Inc. 100% ownership of COSI Ultra, Inc. and COSI Ultra II, Inc. COSI Ultra, Inc. 50% partner of Constellation Operating Services COSI Ultra II, Inc. 50% partner of Constellation Operating Services 50 (40) Holland Energy, LLC System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of Holland Energy, LLC (41) Oleander Power Project, Limited Partnership System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of CP Florida Investors, Inc., CP Oleander I, Inc. and CP Oleander II, Inc. CP Florida Investors, Inc. 1% partnership interest in CP Oleander, LP CP Oleander II, Inc. 99% partnership interest in CP Oleander, LP CP Oleander, LP 99% partnership interest in Oleander Power Project, LP CP Oleander I, Inc. 1% partnership interest in Oleander Power Project, LP 51 (42) COSI A/C Power, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of Constellation Operating Services, Inc. Constellation Operating Services, Inc. 100% ownership of COSI A/C Power, Inc. (43) Rio Nogales Power Project, L.P. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of Rio Nogales I, Inc. and Rio Nogales II, Inc. Rio Nogales I, Inc. 1% partnership interest in Rio Nogales Power Project, L.P. Rio Nogales II, Inc. 99% partnership interest in Rio Nogales Power Project, L.P. 52 (44) Calvert Cliffs Nuclear Power Plant, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Generation Group, LLC Constellation Generation Group, LLC 100% ownership of Calvert Cliffs Nuclear Power Plant, Inc. (45) Constellation Power Source Generation, Inc. System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power Source Holdings, Inc. Constellation Power Source 100% ownership of Constellation Holdings, Inc. Power Source Generation, Inc. (46) Nine Mile Point Nuclear Station, LLC System Company Description of Interest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Generation Group, LLC Constellation Generation Group, LLC 100% ownership of Constellation Nuclear Power Plants, Inc. Constellation Nuclear Power Plants, Inc. 100% ownership of Nine Mile Point Nuclear Station, LLC 53 (47) Empressa Rio Electrico Sociedad Anonima System Company Description of Intersest -------------- ----------------------- Constellation Energy Group, Inc. 100% ownership of Constellation Enterprises, Inc. Constellation Enterprises, Inc. 100% ownership of Constellation Holdings, Inc. Constellation Holdings, Inc. 100% ownership of Constellation Power, Inc. Constellation Power, Inc. 100% ownership of Constellation Power International Investments, Ltd. Constellation Power International 15.5% ownership of The Bolivian Investments, Ltd. Generating Group, LLC (Sold December 2002) 50% ownership of C&O Bolivia, LLC (Sold December 2002) C&O Bolivia, LLC 26% ownership of The Bolivian Generating Group, LLC (Sold December 2002) The Bolivian Generating Group, LLC 50% ownership of Empressa Electrica Valle Hermoso, S.A. Empressa Electrica Valle Hermoso, S.A. 100% of Empressa Rio Electrico Sociedad Anonima 54 (c) Type and amount of capital invested, directly or indirectly, by the holding company claiming exemption; any direct or indirect guarantee of the security of the EWG or foreign utility company by the holding company claiming exemption; and any debt or other financial obligation for which there is recourse, directly or indirectly, to the holding company claiming exemption or another system company, other than the EWG or foreign utility company. See Attached Annex A (d) Capitalization and earnings of the EWG or foreign utility company during the reporting period. (All figures are as of 12/31/02). See Attached Annex B (e) Identify any service, sales or construction contract(s) between the EWG or foreign utility company and a system company, and describe the services to be rendered or goods sold and fees or revenues under such agreement(s). See Attached Annex C EXHIBIT A A consolidating statement of income and surplus of the claimant and its subsidiary companies for the last calendar year, together with a consolidating balance sheet of claimant and its subsidiary companies as of the close of such calendar year. See Attached Annex D EXHIBIT B An organizational chart showing the relationship of each EWG or foreign utility company to associate companies in the holding-company system. See response to Item 4(b) 55 The above-named claimant has caused this Form U-3A-2 to be duly executed on its behalf by its authorized officer on this 26th day of February, 2003. Constellation Energy Group, Inc. By: Thomas E. Ruszin, Jr. ----------------------- Thomas E. Ruszin, Jr. Vice President Corporate Seal Attest: By: Charles W. Starkey ------------------ Charles W. Starkey Assistant Treasurer Name, title, and address of officer to whom notices and correspondence concerning this statement should be addressed: Thomas E. Ruszin, Jr., Vice President Constellation Energy Group, Inc. 750 East Pratt Street Baltimore, MD 21202 56 Annex A Filed confidentially with the SEC pursuant to Rule 104 of PUHCA. 57 Annex B Filed confidentially with the SEC pursuant to Rule 104 of PUHCA. 58 Annex C Filed confidentially with the SEC pursuant to Rule 104 of PUHCA. 59 Annex D Filed confidentially with the SEC pursuant to Rule 104 of PUHCA. 60