FORM 6-K

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                            Report of Foreign Issuer


                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934


                               December 13 2005


                            BRITISH ENERGY GROUP PLC
                               (Registrant's name)


                                  Systems House
                                   Alba Campus
                                   Livingston
                                    EH54 7EG
                    (Address of principal executive offices)

 
Indicate by check mark whether the registrant files or will file annual 
reports under cover Form 20-F or Form 40-F.

                          Form 20-F..X.. Form 40-F.....

Indicate by check mark whether the registrant by furnishing the information 
contained in this Form is also thereby furnishing the information to the 
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

                               Yes ..... No ..X..

If "Yes" is marked, indicate below the file number assigned to the registrant 
in connection with Rule 12g3-2(b): 



                                 Exhibit Index

The following document (bearing the exhibit number listed below) is furnished
herewith and is made a part of this Report pursuant to the General Instructions
for Form 6-K:



Exhibit       Description

No. 1         RNS Announcement, re: 'Interim Results'  dated 13 December 2005


                                                                13 DECEMBER 2005

                            BRITISH ENERGY GROUP PLC

 2005/06 HALF YEAR including SECOND QUARTER TO 2 OCTOBER 2005 of the FINANCIAL
                           YEAR ENDING 31 MARCH 2006


Key Points

-   British Energy has built on the positive first quarter results, delivering a
    good performance for the half year. Our prime focus continues to remain on
    improving our operational reliability.

    -   Operating profit* of GBP135m for the half year, GBP58m for the second
        quarter.

    -   EBITDA* of GBP227m for the half year, GBP106m for the second quarter.

    -   Results reflect the benefit of higher electricity prices with an
        operating margin of GBP3.9/MWh at contracted summer prices.

-   Total output for the half year was 33.1 TWh (nuclear 30.6 TWh, coal 2.5
    TWh), up from 31.7 TWh in the first half of financial year 2004/05 (nuclear 
    28.7 TWh, coal 3.0 TWh).

-   Total output for the current financial year to 9 December 2005 was 44.1 TWh
    (nuclear 40.1 TWh, coal 4.0 TWh) after total unplanned losses for the period
    to 9 December 2005 of 9.6 TWh.

-   As announced on 25 November 2005, due to extensive inspections at Hartlepool
    and Heysham 1 and the need to replace the generator stator on one unit at
    Hartlepool, we expect that nuclear output for the financial year 2005/06 is
    unlikely to exceed 61 TWh.  We expect nuclear output for the financial year 
    2006/07 to be around 63 TWh.

-   Realised price was GBP25.0/MWh for the half year, compared to GBP24.7/MWh in
    the first quarter.

-    As at 9  December  2005,  the  Company  had  fixed  contracts  in place for
     approximately  95% of planned  output for the financial  year 2005/06 at an
     average price of  GBP32.5/MWh.  Financial  year 2006/07 book  approximately
     half fixed at an average price of approximately  GBP35/MWh  excluding 5 TWh
     of capped contracts.

-    Operating  cash inflow from  operations  was GBP150m for the half year. Net
     debt  decreased  in the half year by  GBP113m to  GBP107m.  Cash and liquid
     funds were GBP569m and  collateral  requirements  were GBP274m.  Collateral
     requirements as at 9 December 2005 were GBP419m.

-    Investment  in  plant  is  expected  to  exceed  GBP250m   including  extra
     investment in strategic spares for the financial year 2005/06.

-    The NLF Cash Sweep  percentage  was 64.69% as at 2 October 2005,  down from
     64.99%  at 31 March  2005 as a result  of the  exercise  of a number of the
     Company's warrants.

-    No accrual for any  potential NLF Cash Sweep payment has been made in these
     interim financial statements in line with the Group's accounting policy. An
     accrual will be made at 31 March 2006 for any NLF Cash Sweep payment.

-    In accordance  with the dividend policy set out within the accounts for the
     period  ended 31 March 2005,  no dividend  has been  declared  for the half
     year.

Bill Coley, British Energy CEO said:

"We  continued  to deliver  good  financial  performance  through  the half year
benefiting from higher  electricity  prices. We are disappointed with the recent
outages at Hartlepool and Heysham 1 which have impacted our projection of output
for the year, but see continuing  improvements in operating  metrics as a result
of our performance improvement programme. The British Energy team remains keenly
focused on the  long-term by making the  investments  in the plant and people to
improve reliability and maximise output."



                                                                         


                                              Quarter ended 2    Half year ended 2
                                                 October 2005         October 2005
Business Performance

Revenue, as adjusted (GBPm) *                             487                1,008
Operating costs, as adjusted (GBPm) *                     429                  873
Operating profit, as adjusted (GBPm) *                     58                  135
EBITDA, as adjusted (GBPm) *                              106                  227


Total Results (including re-measurements)
Revenue (GBPm)                                            492                  979
Operating costs (GBPm)                                    434                  876
Operating profit (GBPm)                                    58                  103
EBITDA (GBPm)                                             106                  195


Cash and liquid funds (GBPm)                                                   569
Net (debt) (GBPm)                                                            (107)


Realised price (GBP/MWh)                                 25.3                 25.0
Operating unit cost (GBP/MWh)                            21.8                 21.1
Operating margin (GBP/MWh)                                3.5                  3.9


Output (TWh)                                           15.7                 33.1
Nuclear                                                14.9                 30.6
Coal                                                    0.8                  2.5




The  Group's  half  year  results  have  been   prepared  in   accordance   with
International  Financial  Reporting Standards (IFRS) for the first time. This is
the first time since completion of the  restructuring of the Group on 14 January
2005 that British  Energy Group plc has published  half year results.  Therefore
this report does not contain any comparative  financial  information  but, where
appropriate, does contain comparative non-financial information.

Items  marked *  represent  the  results of  operations  adjusted to reflect the
results   before   exceptional   charges  and  other   movements   arising  from
re-measurement.  During  the half year and  quarter  there  were no  exceptional
charges.  For the half year and quarter the  re-measurement  adjustments  relate
solely to the  re-measurement  impact of IAS 39 on the results for the half year
and quarter. British Energy believes that the adjusted measures provide a better
indication of the underlying business performance.

Certain  defined  terms used in these half year  results  are  contained  in the
Glossary at the back of this statement.

Management Presentation and Conference Call

Management will host a presentation  for analysts,  institutional  investors and
bondholders at 9:15am (UK time) today,  13 December 2005 at Financial  Dynamics,
Holborn Gate, 26 Southampton Buildings, London, WC2A 1PB.

The presentation will be webcast (www.british-energy.com) and dial in facilities
can be accessed by dialling;


UK dial in:                           0845 113 0049

International dial in:                +44 (0) 1452 542 303

US dial in:                           1 866 434 1089


There will be a replay facility for 7 days:


UK local rate no:                     0845 245 5205

UK International no:                  +44 (0) 1452 550 000

UK PIN (access) no:                   3181452#


Management will host a further conference call for U.S. analysts,  institutional
investors and  bondholders at 2.00pm (UK time), 13 December 2005. The conference
can be accessed by dialling;


UK dial in:                           0845 113 0049

International dial in:                +44 (0) 1452 542 303

US dial in:                           1 866 434 1089


For further information please contact:


John Searles                          01506 408 715         (Investor Relations)

Andrew Dowler                         020 7831 3113         (Media Enquiries)


A copy of this release and a copy of the  presentation in pdf file format can be
found on the Company's web site at www.british-energy.com.



CHAIRMAN'S STATEMENT

The first half has demonstrated improvement in financial performance largely due
to rising  electricity  prices and to an improvement in output  compared to last
year.

The performance  improvement programme has progressed well. PiP is evolving into
a  programme  of  continuous  improvement  which we  believe  will  improve  the
reliability of our power  stations.  An increase in output,  however,  will take
time as we complete the necessary  investment to improve the materiel  condition
of the plant. The reduction in our output target for the current year to a level
unlikely to exceed 61 TWh as announced  on 25 November  2005  reflects  this and
while  disappointing is largely due to unplanned boiler closure unit inspections
at Heysham 1 and  Hartlepool  together  with the need to replace  the  generator
stator on one unit at Hartlepool.

The current energy  environment  provides both  opportunities and challenges for
British  Energy.  The Group has  improved  substantially  the fixed  prices  for
expected output this year in a period when energy markets  continue to be highly
volatile. This requires us to remain focused on managing cash and collateral.

British Energy  welcomes the  Government's  Energy Review and we look forward to
the role we can play in  helping  the UK meet its  energy  requirements.  The UK
needs a balanced  energy  policy and it is the role of  Government to define the
framework.  Nuclear  power can make an important  contribution  to UK targets on
climate change, security of supply and competitiveness.

We have continued to strengthen the  management  team  throughout the half year.
Peter Wakefield joined as Safety and Technical Director in April 2005. Peter was
previously Generation and Safety and Assurance Manager for Eskom in South Africa
and has extensive experience in all aspects of nuclear power plants. Recent WANO
award  winner Peter  Prozesky  has also joined from Eskom as Head of  Operations
East,  bringing  with him over 25 years of  operational  and project  management
skills.

We will  continue  to build the  strength  of our team with an aim of  achieving
world-class nuclear operations.

Safety and environmental performance remain key priorities as can be seen in the
fuller discussion later in this report.  However, as reported in our last Report
and  Accounts,  there  was a fatal  accident  in July 2005 at  Eggborough  power
station  where one of our  contractors  sadly lost his life. We continue to work
with our contractors to improve working practices.

In  accordance  with the  dividend  policy set out within the  accounts  for the
period ended 31 March 2005, no dividend has been declared for the half year. The
Board of Directors  does not currently  expect to propose a dividend  before the
financial year ending 31 March 2007.

The Board is committed to maximising  shareholder  returns after considering the
Company's need to improve financial  stability,  maintain an appropriate capital
structure,  make  appropriate  investments  in the plant and meet the collateral
requirements for the Group.



CHIEF EXECUTIVE'S REVIEW

British  Energy  completed a good first half of the  financial  year ending 31st
March 2006 benefiting from rising electricity  prices.  Operating profit rose to
GBP135m for the half year.  EBITDA rose to  GBP227m,  reflecting  an increase in
average realised price to GBP25.0/MWh. Earnings per share were 11.9p.

Cash flow from  operations  in the half year improved  substantially  at GBP150m
compared to the equivalent  period last year,  reflecting higher realised prices
for summer power  contracts.  This  resulted in a net debt position at 2 October
2005 of GBP107m after debt of GBP676m.

Total  output  was 33.1 TWh for the half year  following  marginally  lower than
expected  output  for the  second  quarter  of 15.7 TWh  largely  due to outages
related  to  Heysham  1 and  Hartlepool  and  planned  maintenance  activity  at
Eggborough.  We remain focused on improving the  operational  reliability of our
plant, through carefully targeted investment.

Total output to 9 December  2005 was 44.1 TWh of which  nuclear  output was 40.1
TWh.  Unplanned  losses to 9 December 2005,  excluding net additional  unplanned
losses due to boiler  closure units at Heysham 1 and Hartlepool of 2.4 TWh, were
7.2 TWh.  We will  continue  to work  with the  regulator  regarding  additional
inspection of the boiler closure units at Heysham 1 and Hartlepool.

We have continued to make good progress with the investment  programme  bringing
total  investment in plant to GBP102m for the half year. Five statutory  outages
have been  completed to date with one further  outage  scheduled to be completed
prior to 31 December  2005. The out-turn of these  statutory  outages and higher
unplanned  losses will lead to higher  costs.  We now expect that  investment in
plant will exceed GBP250m including extra investment in strategic spares for the
financial year 2005/06.

The performance  improvement  programme is being embedded into the business as a
programme of continuous  improvement  and has continued to make the  significant
improvements  in our  people,  processes  and the  systems  required  to achieve
world-class operations.  Many functions are now in place within the stations and
senior personnel hires have been completed.  Key performance  indicators  across
many nuclear performance metrics have improved in the half year.

Trading  completed a good half year compared to the equivalent  period last year
reflecting higher  electricity  prices for summer power contracts.  The realised
price improved in the second quarter  reflecting  rising summer power prices and
good management of balancing costs despite outages at Heysham 1 and Hartlepool.

The trading  book has  progressed  well during the third  quarter with the focus
remaining on managing collateral and exposure related to unreliability in output
in a highly volatile electricity market.

On 15 September  2005, the Group announced its decision to extend the accounting
life of  Dungeness  B by ten  years to  2018.  This is a  result  of a  thorough
technical and economic  assessment of the station working in  consultation  with
the Nuclear  Decommissioning  Authority  and reflects our intention to seek life
extensions  for all our power  stations  where safe and profitable to do so. The
life extension at Dungeness B will ensure continued contribution to reducing CO2
emissions in the UK.

Outlook

The financial  year will continue to be a year of  consolidation  in operational
performance.  Many of the  organisational  changes  required for the improvement
programme are in place. We will continue to strengthen the team at the stations.
There have been  improvements in unplanned losses before taking into account the
extended outages at Heysham 1 and Hartlepool.  We expect underlying  performance
to continue  throughout  the  remainder of the year.  One unit at  Hartlepool is
expected to remain  shutdown  until March 2006 for  replacement of the generator
stator.  This, in association  with the previous boiler closure unit inspections
at  Heysham  1 and  Hartlepool  caused us to  conclude  that  nuclear  output is
unlikely to exceed 61 TWh for the year 2005/06.

As we have  previously  communicated,  improvement in performance is expected to
take time due to the  requirement  to invest in the  materiel  condition  of the
stations.  Much  of the  work  performed  in the  current  year is  required  to
stabilise  output due to  under-investment  in prior years.  This is expected to
continue  over the next two  financial  years  during  the  remaining  statutory
outages.  This remedial work may also impact on the length of statutory  outages
and lead to higher  costs.  There is also a  requirement  to  undertake  further
inspections  of Heysham 1 and  Hartlepool  boiler closure units in the financial
year 2006/07.  Accordingly, we expect nuclear output for the financial year 2006
/07 to be around 63 TWh.

The electricity markets continue to show considerable volatility. The focus will
remain on improving  financial  stability  and  collateral  management.  We have
benefited  from  recent  price  rises  and plan to  progressively  close out the
remainder of the trading book for 2005/06.


OPERATIONAL REVIEW

Plant Output and Performance

Nuclear  output was 14.9 TWh (71% load factor) for the quarter and 30.6 TWh (72%
load  factor)  for the half year.  The nuclear  output for the quarter  ended 30
September  2004 was 13.7 TWh (65% load  factor) and for the six months  ended 30
September  2004 was 28.7 TWh (68% load  factor).  During the  quarter  statutory
outages  were  completed  at  Heysham  1 and  Hunterston  B and one  started  at
Dungeness B. Since  successfully  completing  its statutory  outage in the first
quarter,  Sizewell B has operated continuously at full power. There were planned
outages  amounting  to 2.3 TWh of lost output in the quarter and 6.1 TWh for the
half year.  Unplanned  losses for the  quarter  were 3.7 TWh and 6.0 TWh for the
half year, including outage overruns at Heysham 1, Hunterston B and Sizewell B.

On 31 October 2005,  the Company  announced  that the two units at Heysham 1 had
returned to service  following boiler closure unit work and by 15 November 2005,
the two  units  at  Hartlepool  had  returned  to  service.  The net  additional
unplanned loss related to these outages was 2.4 TWh.

Subsequent to its return to service,  an issue with the generator  stator on one
unit at  Hartlepool  resulted in a shutdown that is expected to last until March
2006.

Output from our  coal-fired  power station at Eggborough  was 0.8 TWh during the
quarter and 2.5 TWh for the half year. For the quarter ended 30 September  2004,
the output was 1.6 TWh and for the six-month period ended 30 September 2004, the
output was 3.0 TWh. As Eggborough is operated  primarily as a flexible mid-merit
plant, its output level is influenced by market prices, the Company's contracted
trading  position and the extent to which it is operated as cover for  unplanned
outages at the nuclear power  stations.  In addition,  the output level reflects
planned maintenance work completed during the quarter.

Inspections carried out during the Unit 4 outage at Eggborough revealed evidence
of cracking on a number of the turbine blades.  The affected turbine blades will
be removed and this unit is  expected  to return to service as  planned,  albeit
with a small  reduction  in  capacity.  Inspections  of other units  showed that
cracking was not widespread.

Flue Gas Desulphurisation  (FGD) installation on Units 3 and 4 at Eggborough has
been completed and the plant was taken over from the  contractors on 1 September
2005.

On 21 September  2005, the Department  for  Environment,  Food and Rural Affairs
issued an update  regarding the  implementation  of the Large  Combustion  Plant
Directive (LCPD) pending a formal decision by the Government expected before the
end of this year. The update  indicated that the Government  will apply emission
limit  values to control  emissions  of  sulphur  dioxide,  nitrogen  oxides and
particulates  from  power  stations  in the UK from  January  2008.  The  update
repeated the European  Commission's  view that existing plants whose waste gases
are discharged through a common stack should be considered as a single plant for
the  purposes of the LCPD,  and this has since been  confirmed in writing by the
European Commission.  Discussions with the Government are continuing but if this
interpretation  is  maintained,  it means that there could be a  requirement  to
either modify the plant or materially restrict the operations of the two non-FGD
units at  Eggborough  from 2008 in order to comply  with the  proposed  emission
limit values.  Discussions  are taking place with lending banks  regarding their
2010 Option.

Operational Update

As part of its ongoing work to achieve  improved  operational  performance,  the
Company has  developed a number of  performance  improvement  processes  and has
broadly  completed  the  integration  of  those  processes  into  the  stations.
Implementation of the programme is progressing well, with completion expected in
2006/07.  Effectiveness  reviews  of the  processes  are  being  undertaken,  in
addition to the  Company's  ongoing  monitoring  of a number of key  performance
indicators.

The Company's  non-outage defect backlog has reduced by 27% for the half year as
a result of focusing on equipment  reliability,  work management and an improved
operational focus. Both nuclear reportable events and unplanned  automatic trips
continue to show an improvement in the half year.

In the course of designing the Company's improvement  programme,  we have sought
input from external experts.  Hartlepool  received a positive  assessment in the
quarter that builds on recent good assessments received at other stations.

The Company's  human  performance  programme was also recognised as being at the
forefront of such programmes in Europe and we have recently conducted a workshop
for other European nuclear utilities.

We have continued to make good progress with the investment  programme  bringing
the total investment in plant,  projects,  major repairs and strategic spares to
GBP102m for the half year.  The main  investment  in plant  included  additional
boiler safety work at  Hartlepool  and Heysham 1, turbine work at Heysham 1, low
pressure  rotor   refurbishment   at  Heysham  2  and  Hunterston  B,  generator
transformer  refurbishment  at Hartlepool  and cast iron  replacement at Hinkley
Point and Hunterston B. Work continued on the planned  reactor  pressure  vessel
head  replacement  at Sizewell B and FGD system and low nitrous oxide burners at
Eggborough.  Investment  has  also  been  made in  strategic  spares,  including
generator rotors and transformers.

Safety and Environmental Performance

A key priority of the Group is to manage the safety of our plant, people and the
general  public.  Lost time accidents for staff and  contractors  have increased
during the quarter and half year largely due to an increased number of accidents
involving  contractors.  A much  greater  focus  has  been  put on  helping  and
supporting our contractor partners improve their safety  performance.  We remain
absolutely committed to safety and ensuring the safety of our staff, contractors
and the general public.

The  environmental   performance  of  the  Group  also  continues  to  remain  a
fundamental priority of the Company. Environmental performance indicators in the
year to date are ahead of the Group's expectations.

NDA Strategy

The Nuclear Decommissioning  Authority published its draft strategy document and
has  provided  an  opportunity  for full and open  consultation  on the issue of
managing the UK's nuclear  legacy.  British Energy  welcomes the  opportunity to
take part in this consultation and has responded with its views to the NDA.

Quinquennial Review

The quinquennial  review of our nuclear  liabilities is underway and the results
of this review  will be  finalised  in the New Year.  The review may result in a
significant  change  in value  of the  nuclear  liabilities  due to  changes  in
strategy and cost estimates.  However,  as a result of the arrangements with the
NLF and  Government,  any  change in value of the  nuclear  liabilities  will be
offset in our balance sheet by an equal and opposite  change in the value of the
NLF receivable.


TRADING REVIEW

Trading Position

The forward contract for baseload electricity for winter 2005/06 delivery closed
at GBP49.4/MWh on 30 September  2005, well below the peak of over GBP67/MWh seen
in mid-July.  The forward market in electricity  continues to show  considerable
volatility,  with baseload power for 2006/07 delivery trading between  GBP45/MWh
and GBP55/MWh  over the quarter.  As at 9 December  2005,  the Company had fixed
price  contracts  in place  for  approximately  95% of  planned  output  for the
financial year 2005/06 at an average  contract price of GBP32.5/MWh.  This price
includes  the impact of capped  price  arrangements  of  approximately  5 TWh at
around  GBP30/MWh  and the  benefit  of higher  prices  achieved  as a result of
Eggborough  taking  advantage  of the  differential  between  peak and  baseload
prices.  This  price  excludes  Balancing  Services  Use  of  System  and  other
electricity market  participation  charges of around GBP0.7/MWh and market costs
incurred through output variation and  unreliability for planned output over the
remainder of the year, expected to be around GBP1.0/MWh.  The Company intends to
progressively  close  out  its  remaining  exposure  to  market  prices  for the
financial year 2005/06 in the shorter term markets  subject to limits on trading
collateral.  Good  progress has been made in building  the fixed price  contract
position for 2006/07, with approximately half of planned output fixed to date at
a price of  approximately  GBP35/MWh.  This price  excludes the impact of capped
price arrangements of approximately 5 TWh at around GBP30/MWh.

Realised  price  was  GBP25.0/MWh  for the  half  year and  GBP25.3/MWh  for the
quarter.

Collateral

The  Group's  strategy  for  securing  part of its income  through  fixed  price
contracts means that in a volatile  electricity  market collateral  requirements
are also  volatile.  The Group's  ability to secure longer term certainty on its
income is limited by the amount of collateral and headroom available. The recent
increase  in  electricity  prices to  unprecedented  levels  has  given  rise to
increased  collateral  requirements,  with a  corresponding  constraint  on cash
headroom.   The  Group  actively  manages  its  use  of  collateral  by  selling
electricity  through a number of routes to market  including  through its direct
supply business (to large  industrial and commercial  customers)  which requires
minimal  collateral  and also  through  the use of  financial  products  and low
collateral  contractual  structures.  We have recently  secured zero  collateral
trading lines for up to 8 TWh over two years.

Collateral  requirements  increased  by GBP58m from  GBP216m at 31 March 2005 to
GBP274m at 2 October 2005.  Collateral  requirements  as at 9 December 2005 were
GBP419m.




FINANCIAL REVIEW

Group Performance

The unaudited results for the quarter and half year are summarised as follows:

                                                                                                
                                                                                                                      
                                         3 months ended                 6 months ended    6 months ended              
                      3 months ended          2 October     3 months    2 October 2005         2 October     6 months
                      2 October 2005               2005        ended          Business              2005        ended  
                            Business     Re-measurement    2 October       performance    Re-measurement    2 October
                         performance               GBPm         2005              GBPm              GBPm         2005 
                                GBPm                           Total                                            Total 
                                                                GBPm                                             GBPm 

  Group revenue                  487                  5          492             1,008               (29)         979 
  EBITDA                         106                  -          106               227               (32)         195 
  Operating profit/(loss)         58                  -           58               135               (32)         103 
  Financing charges              (9)                  -          (9)              (22)                  -        (22) 
  Profit/(loss) before tax        49                  -           49               113               (32)          81 




The  discussion  below  focuses on the  business  performance  results  that are
adjusted to reflect the results before  exceptional  charges and other movements
arising  from  re-measurement.  During the half year and  quarter  there were no
exceptional   charges.   For  the  half  year  and  quarter  the  re-measurement
adjustments relate solely to the re-measurement impact of IAS 39. British Energy
believes that this adjusted measure  provides a better  indication of underlying
performance.

Revenue

Group revenue comprised  generation sales, direct supply sales and miscellaneous
income.  Revenue was  GBP1,008m  for the half year and GBP487m for the  quarter.
Revenue  reduced  from the first  quarter to the  second  quarter as a result of
reduced output.




The analysis of revenue is as follows:

                                                                             

                                                   3 months ended       6 months ended
                                                   2 October 2005       2 October 2005
                                                             GBPm                 GBPm
Group revenue
Wholesale generation sales                                    205                  435
Direct supply sales net of energy supply costs                197                  401
                                                              402                  836
Energy supply costs recharged to customers                     82                  164
Miscellaneous income                                            3                    8
Revenue                                                       487                1,008


Wholesale  generation  sales includes  revenue from Energy  Purchases which cost
GBP9m for the half year and GBP5m for the quarter.


Output is analysed as follows:
                                                   3 months ended       6 months ended
                                                   2 October 2005       2 October 2005
                                                              TWh                  TWh
Nuclear                                                      14.9                 30.6
Eggborough                                                    0.8                  2.5
Total                                                        15.7                 33.1



The realised price for the half year was GBP25.0/MWh and GBP25.3/MWh for the
quarter.


Operating Costs

Operating costs were GBP873m for the half year and GBP429m for the quarter, as
detailed below.



                                                                       


                                             3 months ended       6 months ended
                                             2 October 2005       2 October 2005
                                                       GBPm                 GBPm

Fuel costs - nuclear                                     95                  179
Fuel costs - fossil                                      16                   69
Total fuel costs                                        111                  248
Energy purchases                                          5                    9
Materials and services                                  113                  213
Staff costs                                              82                  162
Depreciation                                             47                   90
Amortisation                                              1                    2
Other operating income                                 (12)                 (15)
Energy supply costs                                      82                  164
NLF Cash Sweep payment                                    -                    -
Total operating costs                                   429                  873



Total  operating unit costs were  GBP21.1/MWh  for the half year and GBP21.8/MWh
for the quarter.

The component elements of the operating costs are discussed below.


Fuel Costs

Total  fuel costs  amounted  to GBP248m  for the half year and  GBP111m  for the
quarter.  Nuclear  fuel costs were  GBP179m for the half year and GBP95m for the
quarter.  The  increase  of  GBP11m  from the  first  quarter  includes  a GBP3m
reduction as a result of reduced  output in the quarter  offset by a higher back
end final core movement in provision of GBP14m. The value of back end final core
costs is linked to the amount of fuel that  remains  unburned in reactors at the
period end rather than being directly linked to the output of the period.

Eggborough  fuel costs for the half year were GBP69m and GBP16m for the quarter.
The reduction  from the first quarter  reflects,  in part, the reduced output at
the  station  but is also  due to the  Eggborough  fuel  costs  including  costs
attributable to carbon.  Carbon costs are based on the market price of carbon at
the period end and for the half year were  GBP22m,  comprising a credit of GBP2m
for the quarter and costs of GBP24m for the first quarter.

The  market  price  of  CO2  allowances  have  decreased  in  the  quarter  from
approximately  EUR25/tonne  at 3 July  2005 to  approximately  EUR23/tonne  at 2
October 2005. The cost of CO2  allowances  impacts the marginal cost of coal and
gas generation.

Materials and Services

Materials  and  services  costs  comprise  the  operating  expenses of the power
stations  and  support   functions   excluding  fuel  costs,   staff  costs  and
depreciation.  These costs were GBP213m  during the half year and GBP113m during
the  quarter.  The  increase in costs from the first  quarter were mainly due to
additional investment expenditure incurred.

Staff Costs

Staff  costs  were  GBP162m  for the half year and GBP82m  for the  quarter  and
included pension costs of GBP28m and GBP14m respectively.

Employer  contributions  to the pension scheme were GBP34m for the half year and
GBP17m for the quarter reflecting the impact of increased  contributions  agreed
as part of deficit repair and new salary sacrifice arrangements  introduced from
1 April 2005.

Other Operating Income

The  other  operating  income of GBP15m  for the half  year and  GBP12m  for the
quarter relates to utilisation,  excluding revalorisation,  of the net commodity
contracts provision, which was established on restructuring.

NLF Cash Sweep Payment

The NLF Cash Sweep  percentage was 64.69% as at 2 October 2005, down from 64.99%
at 31 March  2005 as a result  of the  exercise  of a  number  of the  Company's
warrants.  In accordance with the Group's  accounting policy no accrual has been
made for any  potential  future NLF Cash Sweep payment that may be payable based
on the  full  year  results.  In  accordance  with the  Government  Contribution
Agreement,  an  accrual  will be made for the  weighted  average  NLF Cash Sweep
percentage  payment applied to adjusted net cash flow as at 31 March 2006 to the
extent adjusted net cash flow arising from  operations  during the year is above
GBP290m plus posted collateral (subject to a GBP200m minimum) at 31 March 2006

Operating Profit

The Group  operating  profit  was  GBP135m  for the half year and GBP58m for the
quarter.

Financing Charges




The total financing charges are analysed below:

                                                                                                      

                                                                            3 months ended       6 months ended
                                                                            2 October 2005       2 October 2005
                                                                                      GBPm                 GBPm

Revalorisation of nuclear liabilities                                                   52                  119
Revalorisation of nuclear liabilities receivable and NLF receivable                   (52)                (119)
Revalorisation of fixed decommissioning obligation                                       2                    6
Revalorisation of contracts provision                                                    3                    7
Total revalorisation                                                                     5                   13
Net interest expense                                                                     6                   13
Net credit to finance charge for pension liability                                     (2)                  (4)
Total financing charges                                                                  9                   22




Revalorisation  of nuclear  liabilities  arises because nuclear  liabilities are
stated in the balance sheet at current price levels,  discounted at 3% per annum
real  from  the  eventual  payment  dates.  The  revalorisation  charge  is  the
adjustment  that results from restating  these  liabilities to take into account
the effect of  inflation  in the period and to remove the effect of the discount
for the period.

A  revalorisation  credit arises in respect of movements in the value of nuclear
liabilities  receivable and the NLF receivable to take account of the underlying
movement in nuclear liabilities.

Revalorisation charges arise in respect of the fixed decommissioning  obligation
and the  contracts  provision  to reflect the  unwinding of the discount for the
half year and quarter.

IAS 39 and Contract Provisions

The  total  movements  on the IAS 39  values  and the  net  commodity  contracts
provision established as part of the fair value exercise are analysed below:



                                                                                               

                                                                     IAS 39        Contract
                                                                     values       provision          Total
                                                                       GBPm            GBPm           GBPm

As at 1 April 2005                                                       34             238            272
Charge/(credit) to the income statement                                  32             (3)             29
Revalorisation                                                            -               4              4
Increase in hedge reserve through the statement of recognised income
and expense                                                              52               -             52
As at 3 July 2005                                                       118             239            357
Credit to the income statement                                            -            (12)           (12)
Revalorisation                                                            -               3              3
Decrease in hedge reserve through the statement of recognised income
and expense                                                             (2)               -            (2)
As at 2 October 2005                                                    116             230            346




Following the adoption of IAS 39 at 1 April 2005, the opening  balance of GBP34m
has risen by GBP82m to GBP116m.  The effect on operating profit in the half year
has been a  reduction  of GBP32m  with the  balance of GBP50m  being  recognised
through the statement of recognised income and expense.

The contract  provision  relates to contracts outside the scope of IAS 39, which
were initially  valued at the  restructuring  effective date of 14 January 2005.
The provision is being utilised over the lives of these contracts. The provision
has decreased by GBP8m in the half year.

Taxation

Income tax is calculated on the profit for the period,  before taking account of
the  income   statement  effect  of  any  adjustments  to  the  measurement  and
classification of financial  instruments  required by IAS 39, at the anticipated
annual  effective  rate  applicable to this profit.  Any charge for the NLF Cash
Sweep  payment  included in the annual  results will not be tax  deductible  and
therefore the anticipated  annual effective rate is significantly  more than the
standard rate of 30%.  Adjustments  to profit  arising from the  application  of
measurement and classification rules for financial  instruments contained in IAS
39 are tax effected at the standard rate of 30%.  There is no current tax charge
in the period due to the  availability  of trading losses carried  forward.  The
charge of GBP36m before  re-measurement  and GBP46m after  re-measurement in the
half year and GBP20m before and after re-measurement for the quarter consists of
deferred tax only.

Profit after Tax

As a result of the  factors  discussed  above,  the net  profit  for the  period
attributable to equity shareholders was GBP67m before  re-measurement and GBP45m
after   re-measurement   for  the  half  year  and   GBP29m   before  and  after
re-measurement for the quarter.

Earnings per Share (before Cash Sweep)

There  was an  earnings  per  share of 11.9p  for the half year and 5.1p for the
quarter,  based  on  the  net  profit  for  the  period  before  the  effect  of
re-measurement  divided by the  weighted  average  number of ordinary  shares in
issue during the period. After the effect of re-measurement,  earnings per share
was 8.0p for the half year and 5.1p for the quarter.

The diluted  earnings per share for the half year was 11.5p before the effect of
re-measurement  and 7.7p after the effect of re-measurement  and for the quarter
was 5.0p before and after the effect of re-measurement. The conversion rights of
the NLF Cash Sweep are not considered dilutive.

Actuarial Loss on Pensions

There has been one significant change in the actuarial  assumptions adopted at 2
October  2005  compared  with 31  March  2005  that  mainly  contributed  to the
actuarial loss on pensions of GBP89m for the half year that has been recorded in
the statement of recognised income and expense.  The discount rate used to value
the  liabilities  has changed from 5.5% per annum to 5.0% per annum in line with
market changes in the yield on long-dated  corporate bonds over the period.  The
effect of the  change  in the  discount  rate is to place a higher  value on the
pension liabilities, resulting in a significant actuarial loss in the quarter.

Cash Flow and Net Debt

The operating cash inflow from  operations  was GBP150m for the half year.  When
adjusted for the increase in restricted cash, capital expenditure,  the exercise
of warrants and the costs  associated with the sale of investments  there was an
increase  in total cash of  GBP113m.  The net debt has  therefore  reduced  from
GBP220m at 31 March 2005 to GBP107m at 2 October 2005.

Future Reporting

On 24 October 2005,  consent was received from the Group's  bondholders to amend
the US GAAP  reporting  requirements  of the bonds.  This  allows the Company to
cease  reporting under US GAAP. As previously  announced,  the Company is taking
steps to permit it to de-register from the United States Securities and Exchange
Commission.

The next set of quarterly results to be presented will be for the quarter ending
1 January 2006.

Safe Harbour

Certain statements in this document are 'forward-looking'  statements as defined
in Section 21E of the US Securities  Exchange Act of 1934. Such  forward-looking
statements include, among others:

-    the anticipated development of the UK electricity industry, the future 
     development of regulation of the UK electricity industry, the effect of 
     these developments on our business, financial condition or results of
     operation; and

-    other matters that are not historical facts concerning the Group's business
     operations, financial condition and results of operations.

These forward-looking  statements involve known and unknown risks, uncertainties
and other  factors  which are in some cases  beyond the Group's  control and may
cause its  actual  results  or  performance  to  differ  materially  from  those
expressed   or  implied  by  such   forward-looking   statements.   Due  to  the
uncertainties and risks associated with these forward-looking statements,  which
apply only as at the date  hereof,  the Company is  claiming  the benefit of the
safe harbour  provision  contained in Section 21E of the US Securities  Exchange
Act of 1934.


NON-GAAP FINANCIAL MEASURES

Business Performance

Business  performance  excludes certain  re-measurement items (see below) and is
presented as management  believes that exclusion of these items provides readers
with a clear and consistent presentation of the underlying operating performance
of the Group's business.

Re-measurement

The impact of re-measurement  reflects  exceptional charges and other movements,
including  the  impact of IAS 39.  The scope of IAS 39  includes  all  financial
instruments  i.e. loans,  trade  receivables,  payables,  investments,  cash and
derivatives,  as well as certain commodity contracts. The standard requires that
all derivatives,  including certain commodity contracts,  are fair valued on the
balance  sheet,  with changes from  re-measurement  being recorded in the income
statement unless cash flow hedge accounting is applied.

Unrealised  gains and losses in respect of  commodity  contracts  are  disclosed
separately  as  re-measurements.  Realised  gains and losses  relating  to these
contracts are included in business  performance.  Management considers that this
presentation  best reflects the underlying  performance of the business since it
distinguishes   between  the  temporary  timing   differences   associated  with
re-measurement under IAS 39 rules and actual realised gains and losses.

Exceptional  charges,  by their nature,  are not  indicative  of the  underlying
operating performance of the Group.

For a  reconciliation  between the overall results and business  performance and
details of re-measurement items, see the consolidated income statement.

Realised Price

Realised  price is calculated  by dividing  revenue  (before any  re-measurement
impact, energy supply costs recharged to customers and miscellaneous income, and
net of energy purchase costs) by total output during the period. The adjustments
to revenue  allow  management  and investors a better  understanding  of the net
price that customers are paying for our electricity.

Total Operating Unit Costs

Total  operating unit costs are calculated by dividing the total operating costs
(before any  re-measurement,  energy  supply costs  recharged  to customers  and
energy purchase costs) by total output during the period.

EBITDA

EBITDA is operating  profit  before  interest,  income taxes,  depreciation  and
amortisation  and has been presented both including and excluding the effects of
re-measurement.  The Company has included information  concerning EBITDA because
it believes that it is used by certain investors as one measure of the Company's
financial  performance.  EBITDA is not a measure of financial  performance under
IFRS and is not  necessarily  comparable  to similarly  titled  measures used by
other  companies.  EBITDA should not be construed as an alternative to operating
income or to cash flows from  operating  activities (as determined in accordance
with IFRS) as a measure of liquidity.





CONSOLIDATED INCOME STATEMENT 
FOR THE THREE MONTHS AND SIX MONTHS ENDED 2 OCTOBER 2005 (UNAUDITED) 

                                                                                            

                                       3 months    3 months              6 months     6 months                
                                          ended       ended  3 months       ended        ended   6 months
                                      2 October   2 October   ended 2   2 October    2 October    ended 2    2 July
                                           2005        2005   October        2005         2005    October   2004 to
                                       Business         Re-      2005    Business          Re-       2005  31 March 
                                    performance measurement     Total performance  measurement      Total      2005  
                             Notes         GBPm        GBPm      GBPm        GBPm         GBPm       GBPm      GBPm   


Revenue                          2          487           5       492       1,008         (29)        979       499
Energy purchases                            (5)         (4)       (9)         (9)            -        (9)      (17)
Fuel costs                                (111)         (1)     (112)       (248)          (3)      (251)     (127)
Materials and services                    (113)           -     (113)       (213)            -      (213)      (82)
Staff costs                                (82)           -      (82)       (162)            -      (162)      (82)
Energy supply costs                        (82)           -      (82)       (164)            -      (164)      (73)
Other operating income/(costs)               12           -        12          15            -         15       (8)
Operating profit/(loss) before
depreciation and amortisation
(EBITDA)                                    106           -       106         227         (32)        195       110

Depreciation                               (47)           -      (47)        (90)            -       (90)      (40)
Amortisation                                (1)           -       (1)         (2)            -        (2)       (1)
Operating profit/(loss)                      58           -        58         135         (32)        103        69

Financing (charges)/credits
Net revalorisation charges       3          (5)           -       (5)        (13)            -       (13)       (5)
Interest payable                           (13)           -      (13)        (25)            -       (25)      (10)
Interest receivable                           7           -         7          12            -         12         5
Net credit to finance charges
for pension liabilities                       2           -         2           4            -          4         1
Profit/(loss) before tax                     49           -        49         113         (32)         81        60
Taxation                         4         (20)           -      (20)        (46)           10       (36)      (19)
Net profit/(loss) for the period
attributable to equity
shareholders                                 29           -        29          67         (22)         45        41

Earnings/(deficit) per share
(p):
Basic                            5          5.1           -       5.1        11.9        (3.9)        8.0       7.3
Diluted                          5          5.0           -       5.0        11.5        (3.8)        7.7       7.0
 


The Income  Statement for the period 2 July 2004 to 31 March 2005 represents the
trading results for the period from 15 January 2005 to 31 March 2005, the period
after the acquisition of British Energy Limited by British Energy Group plc.




CONSOLIDATED BALANCE SHEET  
AS AT 2 OCTOBER 2005 (UNAUDITED) 

                                                                                

                                                 Notes             As at            As at 
                                                          2 October 2005    31 March 2005 
                                                                    GBPm             GBPm 

Assets                                                                                    
Non-current assets                                                                        
Property, plant and equipment                                      1,692            1,686 
NLF receivable                                                     1,904            1,863 
Nuclear liabilities receivable                                     2,097            2,131 
Deferred income tax asset                                            441              429 
Goodwill and intangible assets                                       372              376 
Receivables due after more than one year                               2                4 
                                                                   6,508            6,489 
Current assets                                                                            
Inventories                                                          338              331 
Nuclear liabilities receivable                                       188              181 
Trade and other receivables                                          289              327 
Cash and cash equivalents                                            290              235 
Restricted cash                                                      279              221 
Financial instruments - commodity contracts                           13                - 
                                                                   1,397            1,295 
Total assets                                                       7,905            7,784 
                                                                                                         
Liabilities                                                                               
Current liabilities                                                                       
Borrowings                                                          (50)             (50) 
Trade and other payables                                           (405)            (378) 
Nuclear liabilities                                                (188)            (181) 
Provisions for other liabilities and charges                       (161)            (230) 
Financial instruments - commodity contracts                        (120)                - 
                                                                   (924)            (839) 
Non-current liabilities                                                                   
Borrowings                                                         (626)            (626) 
Pension fund liability                               6             (459)            (381) 
Provision for nuclear liabilities                                (1,904)          (1,863) 
Provisions for other liabilities and charges                       (112)            (108) 
Nuclear liabilities                                              (2,097)          (2,131) 
NLF liabilities                                                    (206)            (210) 
Financial instruments - commodity contracts                          (9)                - 
Deferred income                                                      (5)              (5) 
                                                                 (5,418)          (5,324) 
Total liabilities                                                (6,342)          (6,163) 
Net assets                                                         1,563            1,621 
                                                                                                         
Equity                                                                                    
Called up equity share capital                                        57               56 
Share premium                                                         20                - 
Other reserves                                                       767              767 
Hedge reserve                                                       (56)                - 
Warrant reserve                                                       38               51 
Retained earnings                                                    737              747 
Total equity                                                       1,563            1,621 
 






 
CONSOLIDATED STATEMENT OF RECOGNISED INCOME AND EXPENSE 
FOR THE THREE AND SIX MONTHS ENDED 2 OCTOBER 2005 (UNAUDITED) 

                                                                                                       
 
                                                                3 months ended    6 months ended     2 July 2004 to  
                                                                2 October 2005    2 October 2005      31 March 2005 
                                                                          GBPm              GBPm               GBPm 

Gains/(losses) on hedges recognised for the period                           2              (50)                  - 
Actuarial gains/(losses) on retirement benefits for the                     83              (89)                 82 
period                                                                                                              
Tax on items taken directly to equity for the period                      (26)                41               (25) 
Net income/(expense) recognised directly in equity for the                  59              (98)                 57 
period                                                                                                              
Adjustment for the implementation of IAS 39 after tax at 1                   -              (15)                  - 
April 2005                                                                                                          
Net income/(expense) recognised directly in equity                          59             (113)                  - 
Profit for the period                                                       29                45                 41 
Total recognised income and expense                                         88              (68)                 98 
 



 
CONSOLIDATED STATEMENT OF CHANGES IN EQUITY 
FOR THE THREE AND SIX MONTHS ENDED 2 OCTOBER 2005 (UNAUDITED) 

                                                                                            

                        Called up                                                                    
                           equity                                                                     
                            share          Other         Hedge       Warrant        Share      Retained       Total
                          capital       reserves       reserve       reserve      premium      earnings      equity 
                             GBPm           GBPm          GBPm          GBPm         GBPm          GBPm        GBPm 

Balance at 1 April 2005        56            767             -            51            -           747       1,621 

Adjustment for the                                                                                                  
implementation of               -              -          (15)             -            -             -        (15) 
IAS 39 after tax at                                                                                                 
1 April 2005                                                                                                        

Net income/(expense)            -              -          (42)             -            -         (115)       (157) 
recognised directly                                                                                                 
in equity                                                                                                           

Share based payments            -              -             -             -            -             1           1 

Profit for the period           -              -             -             -            -            16          16 

Exercise of warrants            1              -             -           (9)           13             -           5 

Balance at 3 July 2005         57            767          (57)            42           13           649       1,471 
                                                                                                                
Net income/(expense)            -              -             1             -            -            58          59 
recognised directly                                                                                                 
in equity                                                                                                           

Share based payments            -              -             -             -            -             1           1 

Profit for the period           -              -             -             -            -            29          29 
                                                                                                              
Exercise of warrants            -              -             -           (4)            7             -           3 
                                                                                                            
Balance at 2 October 2005      57            767          (56)            38           20           737       1,563 
                                                                                                        





CONSOLIDATED STATEMENT OF CASH FLOWS
FOR THE THREE AND SIX MONTHS ENDED 2 OCTOBER 2005 (UNAUDITED) 

                                                                                                     

                                                                                                                     
                                                              3 months ended     6 months ended    2 July 2004 to 
                                                              2 October 2005     2 October 2005     31 March 2005 
                                                                        GBPm               GBPm              GBPm 

Operating activities                                                                                              
Operating profit for the period                                           58                103                69 
Amortisation charges                                                       1                  2                 1 
Depreciation                                                              47                 90                40 
Loss on disposal of property, plant and equipment                          -                  1                 - 
IAS 39 movement                                                            -                 47                 - 
Movement in other provisions                                            (14)               (14)                19 
Interest paid                                                           (17)               (29)              (12) 
Interest received                                                         10                 16                 3 
Regular contributions to NLF                                             (5)               (17)               (5) 
(Increase)/decrease in inventories                                       (3)                (7)                23 
Decrease in trade and other receivables                                   20                 32                65 
(Increase)/decrease in restricted cash                                  (24)               (58)                69 
Increase/(decrease) in trade payables and other payables                  18               (16)              (84) 
Net cash inflow generated from operations                                 91                150               188 
                                                                                                                     
Cash flows from investing activities                                                                              
Net cash acquired with subsidiary                                          -                  -               113 
Purchases of property, plant and equipment                              (55)               (97)              (35) 
Purchases of intangible assets                                           (1)                (3)                 - 
Proceeds from disposal of property                                         -                  -                 7 
Net cash used in investing activities                                   (56)              (100)                85 
                                                                                                                     
Cash flows from financing activities                                                                              
Exercise of warrants                                                       3                  8                 - 
Repayments of borrowings                                                   -                  -              (28) 
Share issue expense                                                        -                  -              (10) 
Proceeds from sale of own shares                                           -                  -                 3 
Costs associated with sale of investments                                (3)                (3)               (3) 
Net cash used in financing activities                                      -                  5              (38) 
                                                                                                                     
Net change in cash and cash equivalents                                   35                 55               235 
Cash and cash equivalents at beginning of the period                     255                235                 - 
Cash and cash equivalents at the end of the period                       290                290               235 



The  Statement  of Cash  Flows  for the  period  2 July  2004 to 31  March  2005
represents  the  trading  cash flows for the period  from 15 January  2005 to 31
March  2005,  the period  after the  acquisition  of British  Energy  Limited by
British Energy Group plc, except the financing category which, prior to the date
of the acquisition, also reflects the cash flows from the issue of equity by the
Company following its incorporation.


Notes to the financial statements

1. Basis of Preparation

These interim financial statements have been prepared on a basis consistent with
International  Financial  Reporting Standards (IFRS) in issue that are effective
or available for early adoption at the Group's first annual  reporting  date, 31
March  2006,  but  do not  include  all  the  disclosures  in IAS 34 on  interim
reporting.  Based on these IFRS,  the Board of  Directors  has made  assumptions
about the accounting  policies expected to be adopted when the first IFRS annual
financial statements are prepared for the year ending 31 March 2006. The interim
financial  statements  require  management  to make  judgements,  estimates  and
assumptions  that affect the  application  of policies and  reported  amounts of
assets and liabilities, income and expenses.

The accounting  policies are consistent with those that the Directors  intend to
use in the next annual  financial  statements as set out in the  'Restatement of
Results for  Transition  to  International  Financial  Reporting  Standards'  as
published on 21 September 2005. The Group's  proposed  accounting  policies were
included in the  'Results  for the Quarter  Ended 3 July 2005'.  Notwithstanding
this, the IFRS that will be effective or available for voluntary  early adoption
in the annual financial statements for the year ending 31 March 2006 are subject
to change and to the issue of additional interpretations and therefore cannot be
determined with certainty.

This is the  first  set of  interim  results  for the  first  six  months of the
financial year for British  Energy and therefore no  comparative  information is
provided.

To assist  investors  to compare the  underlying  financial  performance  of the
Group,  'business  performance'  income  statement  figures are shown before the
impact of exceptional  charges and other movements arising from  re-measurement.
For the first six months the  adjustments  relate  solely to the  re-measurement
under IAS 39. The definition of 'business  performance' is given in the Non-GAAP
Financial Matters section of this report.

References to 'British Energy' or the 'Company' are to British Energy Group plc.
References to the 'Group' are to the Company and its subsidiaries.

The  financial  statements  for the three  months and six months ended 2 October
2005 are  unaudited  but have been  reviewed by the auditors and their report to
the Company is set out below.

These interim financial statements were approved by the Board of Directors on 13
December 2005.

2. Output, Revenue and Segment Information

Through   consideration   of  our  product,   geographic   area  and  regulatory
environment,  the  Group  has  concluded  that it has one  business,  being  the
generation and sale of electricity in the UK, resulting in one operating segment
of Generation and Trading.



                                                                                               

                                                                    3 months      6 months    15 January
                                                                       ended         ended            to
                                                                   2 October     2 October      31 March
                                                                        2005          2005          2005
                                                                         TWh           TWh           TWh
Output
Nuclear power stations                                                  14.9          30.6          14.3
Coal-fired power station                                                 0.8           2.5           2.5
                                                                        15.7          33.1          16.8





                                                                              


                          3 months    3 months              6 months     6 months                
                             ended       ended  3 months       ended        ended   6 months
                         2 October   2 October   ended 2   2 October    2 October    ended 2    2 July
                              2005        2005   October        2005         2005    October   2004 to
                          Business         Re-      2005    Business          Re-       2005  31 March 
                       performance measurement     Total performance  measurement      Total      2005  
                              GBPm        GBPm      GBPm        GBPm         GBPm       GBPm      GBPm   

Revenue
Wholesale generation sales     205           5       210         435         (29)        406       250
Direct supply sales
net of energy supply costs     197           -       197         401            -        401       170
                               402           5       407         836         (29)        807       420
Energy supply costs
recharged to customers          82           -        82         164            -        164        73
Miscellaneous income             3           -         3           8            -          8         6
                               487           5       492       1,008         (29)        979       499




Wholesale  generation  sales includes  revenue from Energy  Purchases which cost
GBP5m and GBP9m for the three and six months ended 2 October  2005  respectively
(2004/05 GBP17m).





3. Net Revalorisation Charges

                                                                                           

                                                                  3 months      6 months   2 July 2004
                                                                     ended         ended            to
                                                                 2 October     2 October      31 March
                                                                      2005          2005          2005
                                                                      GBPm          GBPm          GBPm

Revalorisation of nuclear liabilities
- changes in price levels                                               21            56            23
- discharge of discount for period                                      31            63            27
Revalorisation of nuclear liabilities receivable                      (28)          (66)          (29)
Revalorisation of NLF receivable                                      (24)          (53)          (21)
Revalorisation of contracts provision                                    3             7             2
Revalorisation of fixed decommissioning obligations                      2             6             3
Net revalorisation charges                                               5            13             5



4. Taxation

There is no current tax charge in the period due to the  availability of trading
losses  carried  forward.  The charge for the three and six months of GBP20m and
GBP36m  before   re-measurement  and  GBP20m  and  GBP46m  after  re-measurement
respectively consists solely of deferred tax.

5. Earnings Per Share

The basic earnings per share for the period has been  calculated by dividing the
profit after taxation by the weighted average number of ordinary shares in issue
during the period.  The diluted  earnings per share  calculation is based on the
weighted  average  of 566  million  and 565  million  ordinary  shares  in issue
together  with the  dilutive  potential  of 17 million  and 16 million  ordinary
shares in respect of  warrants  for the three and six months  respectively.  The
effect of the NLF Cash Sweep is not  considered to be dilutive.  The  adjustment
mechanism  for  the  NLF  Cash  Sweep  percentage  set  out in the  Contribution
Agreement is designed  such that the  shareholders'  interest in the Group after
taking  account of the NLF Cash Sweep remains  consistent.  For example,  in the
event that a NLF Cash Sweep  payment is made  without a  corresponding  dividend
then the NLF Cash Sweep  percentage is diluted as if shareholders had reinvested
a corresponding amount as new equity in the Group.



                                                                                       

                                     3 months    3 months    6 months     6 months
                                        ended       ended     ended 2      ended 2
                                    2 October   2 October     October      October     31 March     31 March
                                         2005        2005        2005         2005         2005         2005
                                        Basic     Diluted       Basic      Diluted        Basic      Diluted

Net profit for the period (GBPm)             29          29          45           45           41           41
Weighted average share capital
(number of shares, million)               566         583         565          581          561          579



6. Pension Costs

There has been one significant change in the actuarial  assumptions adopted at 2
October 2005  compared  with 31 March 2005.  The discount rate used to value the
liabilities  has  changed  from  5.5% per  annum to 5.0% per  annum in line with
changes in the yield on long-dated  corporate bonds over the period.  The effect
of the change in the  discount  rate is to place a higher  value on the  pension
liabilities, giving rise to a significant actuarial loss over the period.

7. Contingent Assets

The Group has certain contingent assets as a result of its disposal of its 82.4%
interest  in Bruce Power LP. In  addition  to the  consideration  payable by the
consortium  under the  master  purchase  agreement,  up to a further  C$100m was
payable  to British  Energy  contingent  upon the  restart of two of the Bruce A
units under a trust  agreement  (the Trust  Agreement)  entered into on the same
date.  Had the first  unit  restarted  by 15 June  2003,  C$50m  would have been
released to British  Energy and an additional  C$50m would have been released to
British Energy had the second unit restarted by 1 August 2003. An amount of C$5m
was to be  deducted  from the  C$50m  payable  in  respect  of each unit for its
failure  to restart by the  scheduled  restart  date or by the first day of each
successive  calendar  month  following  the scheduled  restart  date.  The Group
received  C$20m  on  22  March  2004  and  C$10m  on  25  May  2004  in  partial
consideration  under the Trust Agreement.  British Energy commenced  arbitration
proceedings in Ontario against the Ontario Provincial  Government (the Province)
in December 2004 seeking the payment of additional consideration under the Trust
Agreement  on the basis that Bruce A Units 3 and 4  restarted  earlier  than the
dates claimed by the Province. No additional amounts appear on our balance sheet
at 2 October 2005 because of  uncertainties  regarding  their  realisation.  The
amounts  recoverable  in respect of the  restarted  units will be  substantially
lower than the maximum  C$100m but the amounts and timing of the  payments  have
still to be confirmed.

8. Contingent Liabilities

On 12 February 2004 British Energy Limited  received a notice of warranty claims
from the consortium which purchased the Group's 82.4% interest in Bruce Power LP
alleging breach of certain warranties and representations relating to tax and to
the condition of certain plant at the Bruce Power Station.

The principal tax claim  relates to the  treatment of  expenditure  at the Bruce
Power Station  during the period of the Group's part  ownership and is currently
being  considered by the Canadian tax  authorities.  The  treatment  proposed by
British Energy could result in a rebate of a material amount of tax to the Group
that has not been recognised in the financial statements.  The consortium claims
that allowance of the  expenditure for that period would cause it to lose future
deductions.  British  Energy has rejected the tax claim and expects to defend it
if it is pursued  further.  The Group is confident  that the amount of the claim
should not, in any event,  materially exceed the amount of the rebate,  and that
the tax claim should have no material cash flow impact on the Group.

The claim  relating to the condition of the plant is based upon alleged  erosion
of certain parts of the steam generators,  including the support plates, through
which boiler tubes pass,  which it is alleged  resulted in an extended outage of
one unit at the plant to carry out repair  works and loss of revenues  and costs
of  approximately  C$64.5m.  The consortium also claims that the alleged erosion
may reduce  the  operating  life of the unit  and/or  result in further  repairs
involving  further losses.  British Energy has rejected the claim and expects to
defend it if it is pursued further.

Under the agreement with the  consortium  C$20m is retained in trust to meet any
representation  and warranty claims,  and this may be retained pending agreement
or determination of the claims.

The Company  has given  certain  indemnities  and  guarantees  in respect of its
subsidiary  undertakings.  No  losses  are  anticipated  to  arise  under  these
indemnities and guarantees,  provided relevant subsidiary  undertakings continue
on a going concern basis.

The Group is involved in a number of other  claims and  disputes  arising in the
normal  course of business  which are not expected to have a material  effect on
the Group's financial position.

9. Non-adjusting Post Balance Sheet Events

On 25  November  2005,  the  Company  announced  that due to a number  of recent
equipment issues that have resulted in unplanned  outages at the Company's power
stations,  the  Company  has  revised  its  estimate  of nuclear  output for the
financial year 2005/06.  Based on current information,  the Company expects that
nuclear output for the financial year 2005/06 is unlikely to exceed 61 TWh.

On 21 September  2005, the Department  for  Environment,  Food and Rural Affairs
issued an update  regarding the  implementation  of the Large  Combustion  Plant
Directive (LCPD) pending a formal decision by the Government expected before the
end of this year. The update  indicated that the Government  will apply emission
limit  values to control  emissions  of  sulphur  dioxide,  nitrogen  oxides and
particulates  from  power  stations  in the UK from  January  2008.  The  update
repeated the European  Commission's  view that existing plants whose waste gases
are discharged through a common stack should be considered as a single plant for
the  purposes of the LCPD,  and this has since been  confirmed in writing by the
European Commission.  Discussions with the Government are continuing but if this
interpretation  stands,  it means that there  could be a  requirement  to either
modify the plant or materially  restrict the operations of the two non-FGD units
at  Eggborough  from 2008 in order to comply with the  proposed  emission  limit
values.



INDEPENDENT REVIEW REPORT TO BRITISH ENERGY GROUP PLC

Introduction

We have been  instructed  by the  company  to review the  financial  information
contained  in  the  interim  report  which  comprises  the  consolidated  income
statement,  consolidated  balance  sheet,  consolidated  statement of recognised
income and expense,  consolidated  statement of changes in equity,  consolidated
statement  of  cash  flows,  and  associated  notes.  We  have  read  the  other
information contained in the quarterly report and considered whether it contains
any  apparent  misstatements  or  material  inconsistencies  with the  financial
information.

Directors' responsibilities

The interim report,  including the financial  information  contained therein, is
the responsibility of, and has been approved by the directors. The directors are
responsible  for  preparing the interim  report in  accordance  with the Listing
Rules of the Financial Services Authority.

As disclosed in note 1, the next annual  financial  statements of the group will
be prepared  in  accordance  with  accounting  standards  adopted for use in the
European  Union.  This interim  report has been prepared in accordance  with the
basis set out in Note 1.

The accounting  policies are consistent with those that the directors  intend to
use in the next annual financial  statements.  As explained in note 1, there is,
however,  a possibility  that the directors may determine  that some changes are
necessary when preparing the full annual financial statements for the first time
in accordance with accounting  standards  adopted for use in the European Union.
The IFRS standards and IFRIC interpretations that will be applicable and adopted
for use in the European  Union at 31 March 2006 are not known with  certainty at
the time of preparing this interim financial information.

Review work performed

We conducted our review in accordance with guidance contained in Bulletin 1999/4
issued by the Auditing  Practices Board for use in the United Kingdom.  A review
consists  principally  of making  enquiries  of group  management  and  applying
analytical procedures to the financial information and underlying financial data
and, based thereon,  assessing  whether the disclosed  accounting  policies have
been applied.  A review excludes audit  procedures such as tests of controls and
verification of assets,  liabilities and transactions.  It is substantially less
in scope  than an audit  and  therefore  provides  a lower  level of  assurance.
Accordingly  we do not express an audit  opinion on the  financial  information.
This report,  including the  conclusion,  has been prepared for and only for the
company for the purpose of the Listing Rules of the Financial Services Authority
and for no other purpose. We do not, in producing this report,  accept or assume
responsibility  for any other purpose or to any other person to whom this report
is shown or into  whose  hands it may come save  where  expressly  agreed by our
prior consent in writing.

Review conclusion

On the basis of our review we are not aware of any material  modifications  that
should be made to the  financial  information  as presented for the three months
and six months ended 2 October 2005.


PricewaterhouseCoopers LLP

Chartered Accountants

Edinburgh

13 December 2005



Notes:

(a) The maintenance and integrity of the British Energy Group plc website is the
responsibility  of the Directors;  the work carried out by the auditors does not
involve consideration of these matters and, accordingly,  the auditors accept no
responsibility  for any changes that may have occurred to the  quarterly  report
since it was initially presented on the website.

(b)   Legislation  in  the  United  Kingdom   governing  the   preparation   and
dissemination  of financial  information  may differ from  legislation  in other
jurisdictions.


GLOSSARY


AGR (Advanced Gas-cooled Reactor)

The second generation of gas-cooled nuclear reactor built in the UK.


Baseload Generation

Mode of  operation of a power  station at a constant  high level of output for a
sustained period of time to assist in meeting minimum national demand.


BEDL

British Energy Direct Limited.


BETTA

British Electricity Transmission and Trading Arrangements.


Bruce

The Bruce A and B nuclear power stations in Ontario, Canada.


Decommissioning

The  process  whereby a  nuclear  power  station  is shut down at the end of its
economic  life,  eventually  dismantled,  and the site made  available for other
purposes.


Energy Supply Costs

These mainly  comprise the costs  incurred for the use of the  distribution  and
transmission systems,  recovered through revenue, and accrued costs of Renewable
Obligation Certificates (ROCs).


EPL

Eggborough Power Limited.


ETS

Emissions Trading Scheme.


FGD (Flue Gas Desulphurisation)

Equipment  fitted  to  coal-fired  power  stations  to  reduce  sulphur  dioxide
emissions.


Market Price

The price for annual forward baseload contracts.


Materiel Condition

A term used by nuclear operators, particularly in the United States, in relation
to nuclear power stations,  and used to describe the physical condition of plant
and equipment and the condition of operating  procedures,  engineering drawings,
specifications  and manuals  (taking safety,  maintenance and plant  reliability
into consideration).


MW (megawatt): MWh (megawatt-hour)

One  megawatt  equals  1,000  kW:  one  megawatt-hour  represents  one  hour  of
electricity consumption at a constant rate of 1 MW.


NDA

Nuclear Decommissioning Authority.


NLF

An independently  administered fund into which the Group makes  contributions to
cover  all  qualifying  uncontracted  nuclear  liabilities  including  costs  of
decommissioning nuclear power stations and PWR back end fuel costs.


Non-Outage Defect Backlog

Total of  outstanding  plant  defects  which  are work  requests  that have been
partially accessed by maintenance,  or are still awaiting action after screening
by the  station  Work Review  Groups  based on a priority  weighting  set by the
Nuclear Performance Review Committee.


Outage (Planned and Unplanned)

A period during which a reactor is shut down. The periodic shutdown of a reactor
including  for  maintenance,  inspection  and  testing  or, in some  cases,  for
refuelling  is known as a planned  outage.  In the UK, some planned  outages are
known as statutory  outages and are required by the  conditions  attached to the
nuclear site licence  needed to operate the station.  Unscheduled  shutdown of a
reactor for a period is known as an unplanned outage.


PiP

The Performance Improvement Programme.


PWR (Pressurised Water Reactor)

The most recent type of nuclear  reactor to be  constructed in the UK which uses
pressurised water as both the coolant and the moderator.


Quinquennial Review

The five-yearly  review of the assumptions  underlying the Group's provision for
certain nuclear liabilities.


Renewable Obligation Certificates

Eligible renewable  generators receive Renewable  Obligation  Certificate (ROCs)
for each MWh of electricity  generated.  These  certificates can then be sold to
suppliers, in order to fulfil their renewables obligation.


Restructuring

The restructuring of the Group completed on 14 January 2005.


Restructuring Effective Date (RED)

14 January 2005.


Revalorisation

Revalorisation  arises  because  nuclear  liabilities  are stated in the balance
sheet at current  price  levels,  discounted  at 3% per annum from the  eventual
payment dates.  The  revalorisation  charge is the adjustment  that results from
restating these  liabilities to take into account the effect of inflation in the
year and to remove the effect of one year's  discount as the  eventual  dates of
payment become one year closer.  Revalorisation  charges arise in respect of the
fixed  decommissioning  obligation  to reflect the unwinding of the discount for
the period. A revalorisation  credit arises in respect of movements in the value
of nuclear  liabilities and the NLF receivable to take account of the underlying
movement in nuclear liabilities.


Statutory Outage

The  planned  shutdown  of  nuclear  reactors  for  regulatory   inspection  and
maintenance.


TW (terawatt): TWh (terawatt-hour)

One  terawatt  equals  1,000  GW:  one  terawatt-hour  represents  one  hour  of
electricity consumption at a constant rate of 1 TW.


Unit Capability Factor

The percentage of maximum energy generation that a plant is capable of supplying
to the  electrical  grid,  limited  only by factors  within the control of plant
management.


Unplanned Capability Loss Factor

Unplanned capability loss factor is defined as the ratio of the unplanned energy
losses  during a given  period  of time,  to the  reference  energy  generation,
expressed as a percentage.


WANO

The World  Association of Nuclear  Operators.  A nuclear  industry  organisation
which  encourages  peer review and collects and shares  operating data worldwide
which is then used to benchmark performance.


Warrants

Warrants  entitling the holder to subscribe  for shares in British  Energy Group
plc.

                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the 
registrant has duly caused this report to be signed on its behalf by the 
undersigned, thereunto duly authorized.


Date:  December 13 2005                    BRITISH ENERGY GROUP PLC

                                           By:____John Searles____

                                           Name:  John Searles
                                           Title: Director - Investor Relations