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Corporate report

DESNZ annual report 2025 to 2026: Annexes (unaudited) (HTML)

Published 16 July 2026

This was published under the 2024 to 2026 Starmer Labour government

Annex A: Common core tables

Table 1 – Total departmental spending, 2021-22 to 2026-27

This table provides a summary of departmental net expenditure using the same headings as voted within the Estimate.

2021-22
Outturn
£’000
2022-23
Outturn
£’000
2023-24
Outturn
£’000
2024-25
Outturn
£’000
2025-26
Outturn
£’000
2026-27
Plans
£’000
Affordable energy 89,900 12,623,243 138,286 190,165 172,607 238,826
Energy system 903,061 (589,778) (190,209) 92,378 37,523 59,080
Climate change and decarbonisation 215,060 95,142 141,619 173,728 205,399 141,687
Energy legacy 195,682 195,942 173,484 157,086 160,124 166,623
Science and Research 2,984 2,954 3,029 3,036 2,958 2,800
Deliver an ambitious industrial strategy 6,525 - (361) - (3) -
Capability 254,696 297,008 327,605 368,174 586,430 382,901
Energy system (ALB) net (3,288) 332 9,876 5,357 8,077 20,501
Climate change and decarbonisation (ALB) net 14,305 19,758 36,724 40,518 69,629 98,687
Energy legacy (ALB) net 35,260 32,500 47,555 57,610 56,831 69,118
Science and Research (ALB) net (332) (846) (923) (832) (618) 1,265
Government as Shareholder (ALB) net (404) 76 41 8 2 50
NDA and SLC expenditure (ALB) net 1,427,343 1,538,372 1,582,949 1,484,362 1,550,084 1,445,500
Nuclear Decommissioning Authority Income (CFER) (693,854) (1,033,318) (971,813) (1,146,825) (1,006,651) (606,000)
Total Resource DEL 2,446,938 13,181,385 1,297,862 1,424,765 1,842,392 2,021,038
Current grants to persons and non-profit (net) 84,324 12,488,008 (7,116) 68,357 56,919 2,336
Income from sales of goods and services (710,000) (1,049,659) (982,845) (1,162,933) (1,024,011) (633,034)
Other resource (979,860) (921,014) (,125,033) (1,366,233) (1,624,747) (206,762)
Purchase of goods and services 2,609,252 2,675,850 3,109,594 3,240,068 3,707,622 2,234,463
Rentals (1,389) (1,528) (3,640) (1,407) (808) 15,976
Staff costs 437,428 496,809 447,325 541,945 594,336 464,204
Subsidies to private sector companies - 60,978 662 1,544 172 25,575
Subsidies to public corporations 895,000 (628,943) (266,057) - - -
Take up of provisions (1,817) 1,186 7,936 20 (7,223) -
Unwinding of discount rate on pension scheme liabilities - - - - (6,497) -
Change in pension scheme liabilities (3) 1 60 5 9 -
Current grants abroad (net) 95,439 34,495 45,613 68,494 114,174 87,113
Current grants to local government (net) 18,564 25,202 71,363 34,905 32,446 31,167
Affordable energy 339,062 31,137,649 832,299 (73,964) 26 2,580,572
Energy system 192 (256,296) (436,960) (45,422) (4,289) 9,100,000
Climate change and decarbonisation (462) (3,480) 18,024 11,351 (3,237) 4,042,974
Energy legacy (78,736) (51,441) (126,891) (148,650) (100,318) (80,881)
Science and Research 43,988 (69,240) (16,192) 18,929 208,049 107,200
Capability 24,656 13,953 58,318 13,311 44,913 17,675
Government as Shareholder 21 (37) - - - -
Renewable Heat Incentive 919,555 1,001,880 1,218,131 1,213,370 1,226,870 1,288,000
Deliver an ambitious industrial strategy 2,814 (14,051) (478) - - -
Energy system (ALB) net 249 - 4 9,030 10,064 1,678
Climate change and decarbonisation (ALB) net 10,016,686 (13,506,172) 4,009,678 2,414,396 21,495,483 55,501,908
Energy legacy (ALB) net 3,117,194 (3,375,984) (578,008) 121,472 (120,219) 1,554,313
Science and Research (ALB) net 8,233 5,935 12,031 12,316 60,749 39,415
Government as Shareholder (ALB) net (84,810) (87,548) (86,285) (83,577) (86,611) (80,000)
Nuclear Decommissioning Authority (ALB) net (100,605,669) (110,364,232) (18,371,822) 5,573,594 5,858,211 3,572,000
Energy system (CFER) - - - - - (169,800)
Total Resource AME 114,914,311 (95,569,064) (13,468,151) 9,036,156 28,589,691 77,475,054
Current grants to persons and non-profit (net) 148,768 20,378,499 978,928 140,435 94,986 16,967  
Depreciation 10,473,899 (13,236,278) 6,119,364 4,818,959 24,696,656 68,835,226
Other resource 82,711 680,638 (2,126,648) (2,117,457) (2,740,071) (249,650)
Purchase of goods and services 2,754 6,963 3,284,645 4,560 22,713 -
Release of provision (3,304,065) (3,281,469) (7,215,332) (4,019,026) (4,025,340) (202,723)
Staff costs - 4 - - 7 -
Subsidies to private sector companies 777,246 8,361,800 1,102,982 1,110,899 1,124,998 3,868,000
Subsidies to public corporations 345,889 (345,889) - - - -
Take up of provisions 106,387,109 (108,133,332) (15,612,090) 9,097,786 9,379,186 5,207,154
Unwinding of discount rate on pension scheme liabilities - - - - (53,140) 80
Change in pension scheme liabilities - - - - 89,696 -
Total Resource Budget 117,361,249 (82,387,679) (12,170,289) 10,460,921 30,432,083 79,496,092
Current grants to persons and non-profit (net) 233,092 32,866,507 971,812 208,792 151,905 19,303
Depreciation 10,473,899 (13,236,278) 6,119,364 4,818,959 24,696,656 68,835,226
Income from sales of goods and services (710,000) (1,049,659) (982,845) (1,162,933) (1,024,011) (633,034)
Other resource (897,149) (240,376) (3,251,681) (3,483,690) (4,364,818) (456,412)
Purchase of goods and services 2,612,006 2,682,813 6,394,239 3,244,628 3,730,335 2,234,463
Release of provision (3,304,065) (3,281,469) (7,215,332) (4,019,026) (4,025,340) (202,723)
Rentals (1,389) (1,528) (3,640) (1,407) (808) 15,976
Staff costs 437,428 496,813 447,325 541,945 594,343 464,204
Subsidies to private sector companies 777,246 8,422,778 1,103,644 1,112,443 1,125,170 3,893,575
Subsidies to public corporations 1,240,889 (974,832) (266,057) - - -
Take up of provisions 106,385,292 (108,132,146) (15,604,154) 9,097,806 9,371,963 5,207,154
Unwinding of discount rate on pension scheme liabilities - - - - (59,637) 80
Change in pension scheme liabilities (3) 1 60 5 89,705 -
Current grants abroad (net) 95,439 34,495 45,613 68,494 114,174 87,113
Current grants to local government (net) 18,564 25,202 71,363 34,905 32,446 31,167
Affordable energy 1,256,202 365,271 706,012 1,259,371 1,431,524 1,751,587
Energy system 1,005,678 2,076,559 (325,713) (2,025,259) 116,012 106,870
Climate change and decarbonisation 581,542 421,343 613,699 706,288 847,707 445,310
Energy legacy 5,620,909 9,131 7,474 17,130 9,070 2,415
Science and Research 230 - 28,576 70,464 9,172 970
Capability 21,363 3,635 133,676 26,012 181,270 (329,793)
Energy system (ALB) net - 840,898 1,274,171 1,688,707 4,725,127 273,500
Climate change and decarbonisation (ALB) net 2,500 1,628 3,602 446,064 1,043,243 3,125,750
Energy legacy (ALB) net 25,769 24,311 16,904 31,711 44,245 31,083
Science and Research (ALB) net 233,724 264,318 277,053 382,791 514,836 429,500
Government as Shareholder (ALB) net (59,398) - - - - -
NDA and SLC expenditure (ALB) net 2,023,096 2,192,595 2,392,120 2,637,432 2,534,445 2,710,000
Nuclear Decommissioning Authority Income (CFER) - - (129) (74) - -
Total Capital DEL 10,711,615 6,199,689 5,127,445 5,240,637 11,456,651 8,547,192
Current grants to persons and non-profit (net) 2,902 47,703 139,950 153,734 16,793 14,000
Income from sales of assets (159) (7,444) (173) (1,259) (179) -
Income from sales of goods and services (42,787) (54,752) (72,110) (52,647) (39,469) (350)
Net lending to the private sector and abroad 277,550 9,538 (81,581) 32,879 30,936 256,500
Other capital 5,566,017 885 25,430 40,600 154,786 -
Purchase of assets 2,109,071 2,906,675 3,677,204 4,728,509 8,701,734 5,339,352
Purchase of goods and services 251,192 480,382 527,211 580,001 404,154 613,217
Staff costs 109,814 126,771 164,200 194,642 210,746 898
Take up of provisions 125 - - 693 - -
Capital grants abroad (net) 198,924 209,404 280,060 313,924 656,396 183,500
Capital grants to persons and non-profit (net) 4,063 (70) 71,546 - - -
Capital grants to private sector companies (net) 254,520 150,403 179,842 421,046 343,757 1,132,808
Capital support for local government (net) 641,001 (153,663) 57,743 588,898 462,742 996,267
Capital support for public corporations 1,339,382 2,483,857 158,094 (1,760,392) 514,188 -
Current grants abroad (net) - - 29 9 67 11,000
Energy legacy 23,091 - 14,099 - (7,623) -
Capability - - - - (7) -
Energy system (ALB) net - - 76,500 51,967 (1,857) 2,807,442
Climate change and decarbonisation (ALB) net 54 74 (74) - 168 -
Energy legacy (ALB) net - 558 (225) - 738 146
Science and Research (ALB) net (2,342) (1,986) (7,811) (3,674) (5,168) -
Energy legacy (CFER) (142,400) (142,400) (142,400) - - -
Total Capital AME (121,597) (143,754) (59,911) 48,293 (13,749) 2,807,588
Net lending to the private sector and abroad (142,400) (142,400) (142,400) - - -
Other capital 23,091 - 14,099 - (6,847) 77
Purchase of assets - - 76,500 51,967 (2,093) 2,744,815
Purchase of goods and services (2,342) (1,986) (7,811) (3,674) (5,168) -
Release of provision - - - - - (2,075)
Staff costs - - - - (7) -
Take up of provisions 54 632 (299) - 366 64,771
Total Capital Budget 10,590,018 6,055,935 5,067,534 5,288,930 11,442,902 11,354,780
Current grants to persons and non‑profit (net) 2,902 47,703 139,950 153,734 16,793 14,000
Income from sales of assets (159) (7,444) (173) (1,259) (179) -
Income from sales of goods and services (42,787) (54,752) (72,110) (52,647) (39,469) (350)
Net lending to the private sector and abroad 135,150 (132,862) (223,981) 32,879 30,936 256,500
Other capital 5,589,108 885 39,529 40,600 147,939 77
Purchase of assets 2,109,071 2,906,675 3,753,704 4,780,476 8,699,641 8,084,167
Purchase of goods and services 248,850 478,396 519,400 576,327 398,986 613,217
Release of provision - - - - - (2,075)
Staff costs 109,814 126,771 164,200 194,642 210,739 898
Take up of provisions 179 632 (299) 693 366 64,771
Capital grants abroad (net) 198,924 209,404 280,060 313,924 656,396 183,500
Capital grants to persons and non-profit (net) 4,063 (70) 71,546 - - -
Capital grants to private sector companies (net) 254,520 150,403 179,842 421,046 343,757 1,132,808
Capital support for local government (net) 641,001 (153,663) 57,743 588,898 462,742 996,267
Capital support for public corporations 1,339,382 2,483,857 158,094 (1,760,392) 514,188 -
Current grants abroad (net) - - 29 9 67 11,000
Total Departmental Spending (excl. depreciation) 117,477,368 (63,095,466) (13,222,119) 10,930,892 17,178,329 22,015,646
Total DEL (excl. depreciation) 13,158,553 19,381,074 6,425,307 6,665,402 13,299,043 10,568,230
Total AME (excl. depreciation) 104,318,815 (82,476,540) (19,647,426) 4,265,490 3,879,286 11,447,416

Notes

Totals for Resource DEL and AME for 2024-25 and 2025-26 are different to those shown in the Statement of Parliamentary Supply due to the reclassifcation of ringfenced depreciation costs from DEL to AME. Although the change takes effect from 1 April 2026, Budget Regime Changes are applied to all live years on the HMT OSCAR database (from where these tables are published) from the date of the classification change.

The increases in spend from 2026-27 on energy system (ALB) net Capital AME are due to the reclassification of Sizewell C from Capital DEL.

The large increase in spend in 2022-23 on affordable energy Resource DEL and Resource AME is due to the energy prices support schemes.

The large increase in spend in 2021-22 and subsequent credits in 2022-23 and 2023-24 on energy system Resource DEL is due to the energy special administration regime.

The credits in 2022-23, 2023-24 and 2024-25 on energy system Resource AME are due to the energy special administration regime.

The large increase in spend in 2021-22 and 2022-23 and credits in 2023-24 and 2024-25 on Energy system Capital DEL is due to the energy special administration regime.

The large increase in spend in 2021-22 on energy legacy Capital DEL is due to the Nuclear Liabilities Fund.

The increases in spend since 2022-23 on energy system (ALB) net Capital DEL is due to Sizewell C and Great British Nuclear.

The figures for depreciation in Resource AME include the movement in fair value for Contracts for Difference, shown against climate change and decarbonisation (ALB).

The large movements in take up of provisions within Resource AME is due to movements in the long term discount rate for provisions. This largely impacts the lines for Nuclear Decommissioning Authority and energy legacy (ALB).

For more details of the payments made by Ofgem, as the administrator of the G B Renewable Heat Incentive scheme, please see the fraud and error disclosure on page 80 of the performance report.

Table 2 – Administration budget, 2021-22 to 2026-27

2021-22
Outturn
£’000
2022-23
Outturn
£’000
2023-24
Outturn
£’000
2024-25
Outturn
£’000
2025-26
Outturn
£’000
2026-27
Plans
£’000
Resource DEL            
Capability 235,772 285,313 302,457 347,832 383,174 373,685
Climate change and decarbonisation (ALB) net 4,099 6,047 6,692 7,511 2,824 8,609
Energy legacy (ALB) net 1,760 (2,767) 1,975 1,906 1,900 4,401
Government as Shareholder (ALB) net 36 35 38 8 2 50
NDA and SLC expenditure (ALB) net 35,456 30,497 32,016 31,500 31,998 31,500
Total administration budget 277,123 319,125 343,178 388,757 419,898 418,245
Of which:            
Current grants to persons and non-profit (net) 394 751 785 215 352 283
Income from sales of goods and services (1,979) (2,545) (1,679) (924) (1,126) (10)
Other resource (140,117) (152,230) (76,110) (85,824) (114,290) (162,831)
Purchase of goods and services 104,266 133,885 128,489 139,311 161,032 212,961
Rentals 239 (14) (202) 378 1,991 15,000
Staff costs 314,074 338,940 291,580 335,004 371,768 352,787
Subsidies to private sector companies - - 94 329 - -
Change in pension scheme liabilities 2 - - - - -
Current grants abroad (net) 244 338 221 23 171 55
Current grants to local government (net) - - - 245 - -

Annex B: Financial information by ALB

The table below shows the total operating income, total operating expenditure, net expenditure for the year, and staff numbers and costs for each of our ALBs.

The figures below will not tie directly to the published ALB accounts as they include some adjustments which would have been captured in the ALB’s accounts in the previous year.

The staff costs and numbers for nuclear site licence companies (SLCs) are not included in the table below - as they are included in the amount shown for utilisation in the NDA’s nuclear decommissioning provision in note 18.

Financial Information by ALB, 2025-26

Total Operating income
£m
Total Operating expenditure
£m
Net expenditure for the year (including financing)
£m
Permanently employed staff:
Number of employees
£m
Permanently employed staff:
Staff costs
£m
Other staff:
Number of employees
£m
Other staff:
Staff costs
£m
Core department (104) 9,533 9,356 4,700 404 80 16
UK Atomic Energy Authority (379) 477 111 1,929 160 394 37
Enrichment Holdings Limited - - (71) - - - -
North Sea Transition Authority (43) 43 - 240 27 - -
NDA (935) 7,135 8,969 349 54 44 6
Mining Remediation Authority (25) (122) (70) 414 31 44 1
Civil Nuclear Police Authority (174) 177 4 1,233 130 17 1
Electricity Settlements Company (1,617) 1,617 - - - - -
Sellafield Limited - - - - - - -
Dounreay Site Restoration Ltd - - - - - - -
Low Carbon Contracts Company (192) 305 24,555 274 24 - (2)
Great British Nuclear (2) 25 19 98 9 136 3
Salix (1) 31 30 217 13 4 1
Sizewell C - 16 (6) 1,004 1 - -
Nuclear Restoration Services Limited - - - - - - -
Nuclear Waste Services Limited - - - - - - -
Liverpool Bay CCS Limited - - 21 33 - 30 -
Net Zero North Sea Storage Ltd - 24 (25) 14 - 2 -
Great British Energy - 14 14 56 6 17 2
Consolidation adjustments (2,692) (4,975) (7,607) - (72) - -
Total departmental group (6,164) 14,300 35,300 10,561 787 768 65

Annex C: Glossary

AFP NI: Alternative Fuel Payment Northern Ireland

AGR: Advanced Gas-Cooled Reactor

ALB: Arm’s Length Bodies

AME: Annually Managed Expenditure

AQuA: Analytical Quality Assurance

ARAC: Audit and Risk Assurance Committee

ARG: Additional Restrictions Grants

BCSSS: British Coal Staff Superannuation Scheme

BEIS: Department for Business, Energy and Industrial Strategy

BNFL: British Nuclear Fuels Ltd

CARS: Coal Authority Restructuring Schemes

CCA: Climate Change Agreements

CCC: Climate Change Committee

CCUS: Carbon, Capture Usage and Storage

CDEL: Capital Departmental Expenditure Limit

CETV: Cash Equivalent Transfer Values

CFER: Consolidated Fund Extra Receipts

CfD: Contracts for Difference

CNPA: Civil Nuclear Police Authority

CNPP: Civil Nuclear Pension Plan

CO: Cabinet Office

COD: Commercial Operations Date

COVID-19: Coronavirus Pandemic

CRC: Carbon Reduction Commitment

CSOPS: Civil Servant and Other Pension Scheme

DA: Devolved Administration

DBT: Department for Business and Trade

DEL: Departmental Expenditure Limit

DESNZ: Department for Energy Security and Net Zero

DLUHC: Department for Levelling Up, Housing and Communities

DPA: Dispatchable Power Agreement

DSIT: Department for Science, Innovation and Technology

EBRS: Energy Bill Relief Scheme

EBSS: Energy Bills Support Scheme

EBSS NI: Energy Bills Support Scheme Northern Ireland

ECL: Expected Credit Loss

EDI: Equality Diversity and Inclusion

EPG: Energy Price Guarantee

ESC: Electricity Settlements Company

EU: European Union

EU ETS: EU Emissions Trading Scheme

EUV: Existing-Use Value

FCDO: Foreign Commonwealth and Development Office

FDP: Funded Decommissioning Programme

FIDeR: Financial Investment Decision Enabling for Renewables

FRA: Fraud Risk Assessment

FREM: Government Financial Reporting Manual

FVTOCI: Fair Value through Other Comprehensive Income

FVTPL: Fair Value through Profit or Loss

GBE: Great British Energy

GBN: Great British Nuclear

GDF: Geological Disposal Facility

GDP: Gross Domestic Product

GIAA: Government Internal Audit Agency

GID: Government Investment Decision

GGC: Greening Government Commitments

GHG: Green House Gas

GMPP: Government Major Projects Portfolio

GRAA: Government Resources and Accounts Act

GSG: Government Security Group

HMG: HM government

HMT: HM Treasury

HPC: Hinkley Point C

IAS: International Accounting Standards

ICF: International Climate Fund

IETF: Industrial Energy Transformation Fund

IFRS: International Financial Reporting Standards

LADGF: Local Authority Discretionary Grant Fund

LCCC: Low Carbon Contracts Company Ltd

LCREE: Low Carbon and Renewable Energy Economy

MoG: Machinery of government

MPM: Managing Public Money

MRA: Mining Remediation Authority

MRC: Medical Research Council

NAO: National Audit Office

NDA: Nuclear Decommissioning Authority

NDPB: Non-Departmental Public Bodies

NLF: Nuclear Liabilities Fund

NNBG: NNB Generation Company (HPC) Limited

NNHL: National Nuclear Holdings Ltd

NSTA: North Sea Transition Authority

OCI: Other Comprehensive Income

ODA: Official Development Assistance

Ofgem: Office of Gas and Electricity Markets

OGA: Oil and Gas Authority

ONS: Office for National Statistics

PCFP: Parliamentary Contributory Pension Fund

PCSPS: Principal Civil Service Pension Scheme

PDC: Public Dividend Capital

PES: Public Expenditure System

PIC: Projects and Investment Committee

POPCO: People and Operations Committee

PPE: Property, Plant and Equipment

PSED: Public Sector Equality Duty

PSFA: Public Sector Fraud Authority

PV: Present Value

QA: Quality Assurance

R&D: Research and Development

REMA: Review of Electricity Market Arrangements

RSA: Revenue Support Agreement

RSL: Replacement Sea Line

SCS: Senior Civil Servant

SDG: Sustainable Development Goals

SI: Statutory Instrument

SLC: Site Licence Company

SME: Small and Medium Sized Enterprise

SoCF: Statement of Cash Flows

SoCNE: Statement of Comprehensive Net Expenditure

SoCTE: Statement of Changes in Taxpayers’ Equity

SoFP: Statement of Financial Position

SOPS: Statement of Outturn against Parliamentary Supply

SOSIA: Secretary of State Investor Agreement

T&SCo: Transport and Storage Company, Net Zero North Sea Storage Limited

TCD: Target Commissioning Date

TCW: Target Commissioning Window

TLM: Transmission Loss Multiplier

TME: Total Managed Expenditure

UKAEA: UK Atomic Energy Authority

UKSBS: UK Shared Business Services Ltd

VAT: Value-Added Tax

WTC: Waste Transfer Contract


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