1. Our commitment
When we get something wrong we fix it promptly and say what changed. We do not silently edit a factual claim out of a published page, and we do not delete a page to make an error disappear.
2. Types of change
- Correction — a factual error (a wrong figure, name, date, unit or attribution). The text is fixed and a dated correction note is added to the page.
- Clarification — the facts were right but the wording was open to being misread. The wording is sharpened and a note explains the change.
- Update — new information has emerged, or a source has revised its own figures. The page is updated and the revision date changes.
- Model revision — an assumption or default value inside a calculator or report changes. We record the old value, the new value and the reason.
- Typographical fix — spelling, formatting or broken links. These are made without a note, provided no factual meaning changes.
3. How to report an error
Email info@aienergyintelligence.co.uk with the subject line Correction, or use the contact form. Please include:
- the page URL;
- the exact sentence, figure or calculator output you believe is wrong;
- what you believe the correct position is;
- a source, if you have one.
You do not need to give a reason for your interest, and anyone can report an error.
4. Submit a correction
You can send a correction directly using the form below. It reaches our review queue; it does not change anything published on the site by itself.
5. What happens next
- We acknowledge correction requests within 2 working days.
- Clear factual errors are corrected within 5 working days of being verified — usually much sooner.
- Disputed or complex points (contested modelling assumptions, for example) take longer; we will tell you our expected timescale and keep you updated.
- If we conclude the page is accurate, we will explain why and, where relevant, add a clarification so other readers do not hit the same ambiguity.
6. How corrections appear on the page
Corrections and clarifications are shown in a dated note at the foot of the affected article or report, stating what was previously published and what it now says. Where the error was significant enough to change the headline conclusion, the note goes at the top instead.
7. Recent corrections
A dated log of corrections and revisions to our published reports and to the UK AI Energy Index, most recent first. Index entries are drawn directly from the Index's public revision history.
- Correction· Report
Correction to report: UK AI Energy Outlook 2027
This page previously credited DSIT for DESNZ's data-centre consumption estimates and used "UK" where the source covers Great Britain. Source attribution and geographic scope have been corrected on this page; the downloadable PDF has not been revised.
UK AI Energy Outlook 2027 → - update· Index
Reality Score for Premier Park data centre, Park Royal, London, raised from 63 to 71
63 (Likely) → 71 (Likely)
Team factor moved from 0 to 8. Architect Scott Brownrigg states the scheme was designed by it for the Pure Data Centres Group and SEGRO joint venture (5 May 2026), confirmed by Construction Enquirer the same day. No main contractor has been named.
UK AI Energy Index → - update· Index
Reality Score for 1 Redheughs Avenue, Edinburgh, raised from 8 to 15
8 (Headline only) → 15 (Headline only)
Momentum raised from 0 to 7: the appeal case file shows the appellant confirmed on 12 August 2026 that it will submit an EIA Report, which is dated activity within the last six months. The appeal has been recalled by Scottish Ministers and is on hold.
UK AI Energy Index → - Correction· Index
Council decision date for 1 Redheughs Avenue, Edinburgh, corrected
4 February 2026 → 9 February 2026
The appeal case file gives 9 February 2026 as the date of the council's decision. 4 February 2026 was the date of the committee meeting that refused the application.
UK AI Energy Index → - Correction· Index
Status of the Rover Way data centre, Cardiff, changed from under construction to approved
Under construction → Approved
The under-construction status rested on November 2024 announcements that work would start immediately, made before planning permission was issued on 15 April 2025. We have found no later public evidence of construction on site.
UK AI Energy Index → - Correction· Index
Planning status of Equinix Wexham Road, Slough, corrected
Reserved matters for phase 1 (P/00072/108) approved 26 November 2025 under outline P/00072/096 → Outline application P/00072/152 approved by committee on 26 November 2025, subject to a legal agreement; details reserved
The council's minutes and agenda item for 26 November 2025 show the committee considered Equinix's outline application P/00072/152. Our correction of 29 September 2026 wrongly attributed the decision to an earlier reserved-matters application.
UK AI Energy Index → - update· Index
Reality Score for DC01UK, South Mimms, revised from 53 to 57
53 (Possible) → 57 (Possible)
Grid lowered from 25 to 12: the operator states National Grid has scheduled connection for 2031 (previously reported as October 2029). Land and funding raised from 10 to 20: Equinix completed purchase of the campus in October 2025. Momentum raised from 0 to 7: surveys completed in August 2026 and first reserved matters submitted.
UK AI Energy Index → - update· Index
Reality Score for Skelton Grange, Leeds, raised from 53 to 61
53 (Possible) → 61 (Likely)
Momentum raised from 7 to 15: Harworth Group's half-year results of 9 September 2026 state that enabling works are ongoing. No decision notice has been evidenced.
UK AI Energy Index → - update· Index
Reality Score for the Tudor Works data centre campus, Hayes, raised from 60 to 75
60 (Likely) → 75 (Likely)
Momentum raised from 0 to 15: the operator's construction timeline records two 56 MVA transformers installed in July 2026. The site is still under construction.
UK AI Energy Index → - update· Index
Updated the source and schedule notes on four NESO forecast indicators (2030, 2035 and 2050 data-centre demand and the NESO modelled estimate)
2050 demand indicator: annual update → 2050 demand indicator: updated when the source publishes
NESO's FES 2025 methodology states that Future Energy Scenarios move to a three-yearly cycle for major updates, and NESO now publishes a yearly Ten Year Outlook. The 2035 and 2050 notes also now cite the FES 2025 Data Workbook.
UK AI Energy Index → - update· Index
Replaced "just over 20 TWh" with the exact FES 2025 ten-year forecast for 2030: 20.1 TWh
Just over 20 TWh (5.2 GW connected capacity; modelled range 3.7 to 6.3 GW) → 20.1 TWh (5.2 GW connected capacity; modelled range 3.7 to 6.3 GW)
NESO's FES 2025 Data Workbook (figure F.47) gives the Ten Year Forecast value for 2030 as 20,099 GWh.
UK AI Energy Index → - Correction· Index
Corrected the FES 2025 range for Great Britain data-centre electricity demand in 2035 from 30 to 41 TWh to 20 to 41 TWh
30 to 41 TWh (Ten Year Forecast 33; Hydrogen Evolution 30; Electric Engagement 41) → 20 to 41 TWh (Falling Behind 20; Hydrogen Evolution 30; Ten Year Forecast 33; Holistic Transition 37; Electric Engagement 41)
The earlier reading listed three of the five FES 2025 scenarios. NESO's FES 2025 Data Workbook (figure F.47) also gives Holistic Transition at 37 TWh and Falling Behind, which does not reach net zero, at 20 TWh.
UK AI Energy Index → - Correction· Index
Corrected the FES 2025 range for Great Britain data-centre electricity demand in 2050 from 51 to 71 TWh to 30 to 71 TWh
51 to 71 TWh (Hydrogen Evolution 51; Electric Engagement 71) → 30 to 71 TWh (Falling Behind 30; Hydrogen Evolution 51; Holistic Transition 65; Electric Engagement 71)
The earlier reading listed only two of the four FES 2025 scenarios. NESO's FES 2025 Data Workbook (figure F.47) also gives Holistic Transition at 65 TWh and Falling Behind, which does not reach net zero, at 30 TWh.
UK AI Energy Index → - New edition· Index
Added NESO's FES 2025 ten-year forecast for Great Britain data-centre electricity consumption in 2030: just over 20 TWh
— → Just over 20 TWh (5.2 GW connected capacity)
NESO's written evidence to the Environmental Audit Committee gives its FES 2025 ten-year forecast for 2030. It is a later NESO forecast than the 22 TWh Clean Power 2030 figure, which stays published as the November 2024 position.
UK AI Energy Index → - Correction· Index
Corrected the Lanarkshire AI Growth Zone community fund from up to £540 million to up to £543 million
Up to £540 million → Up to £543 million over 15 years
GOV.UK's announcement of 29 January 2026 states a community fund of up to £543 million over 15 years.
UK AI Energy Index → - Correction· Index
Revised the published IT load for VIRTUS LONDON1, Enfield, from 4.3 MW to 4.2 MW
4.3 MW IT load → 4.2 MW IT load
The operator page previously cited no longer exists. VIRTUS's current Enfield campus page states 4.2 MW of IT load; an older 2021 specification sheet states 4.3 MW. The current operator statement is used.
UK AI Energy Index → - Correction· Index
Corrected the planning status of Equinix Wexham Road, Slough (P/00072/108) from a new outline permission to reserved matters approval for phase 1
Outline planning permission granted at Planning Committee, 26 November 2025 → Reserved matters (phase 1) approved at Planning Committee, 26 November 2025, under outline permission P/00072/096 granted 19 November 2020
The council's agenda item describes P/00072/108 as approval of reserved matters following outline approval P/00072/096 of 19 November 2020. The record wrongly described it as a new outline permission.
UK AI Energy Index → - developer· Index
Applicant/developer is named in published sources but was missing from the record.
— → Digital Land & Development with Peel Waters
UK AI Energy Index → - developer· Index
Applicant/developer is named in published sources but was missing from the record.
— → QuestPit Limited
UK AI Energy Index → - developer· Index
Applicant/developer is named in published sources but was missing from the record.
— → Apatura
UK AI Energy Index → - Capacity mw· Index
Kao Data publishes a 40 MW figure for Kenwood Point without a stated definition. Shown on the profile and excluded from totals.
— → 40 (definition not published)
UK AI Energy Index → - developer· Index
Applicant/developer is named in published sources but was missing from the record.
— → Segro and Pure Data Centres Group
UK AI Energy Index → - summary· Index
The government announcement gives 3,450 jobs for the North Wales AI Growth Zone.
more than 3,400 new jobs → 3,450 jobs
UK AI Energy Index → - summary· Index
The summary cited 213 MW while the record showed 212.42 MW. Both now reflect the range of reported figures; the definition is still unstated.
213 MW → 212.42 MW (reported range 210–213 MW)
UK AI Energy Index → - summary· Index
The summary still described an application awaiting a decision, although the record's status is approved. Summary updated to the October 2025 committee approval.
Hybrid planning application submitted → Approved October 2025
UK AI Energy Index → - Stated electricity demand mw· Index
The Hillingdon committee report (2 October 2025) states the development requires 250 MW of power through two National Grid connections. Recorded as stated electrical demand; it is kept separate from IT-load totals.
— → 250
UK AI Energy Index → - status· Index
Latos Data Centres stated in December 2024 that the Cardiff data centre at Rover Way was under construction (Nation.Cymru).
approved → under_construction
UK AI Energy Index → - summary· Index
The summary said no capacity was recorded while the record showed 4.3 MW of IT load. The summary now names the operator's specification sheet as the source.
No electrical capacity is stated, so none is recorded → 4.3 MW IT load explained
UK AI Energy Index → - status· Index
DataVita's c.£300m debt facility (August 2026) funds construction of DV3, and trade press reported it under construction in September 2026. The status now matches the record's own summary.
approved → under_construction
UK AI Energy Index → - summary· Index
The summary said no capacity was recorded while the record showed 31 MW of IT load. The summary now names Colt's London 4 page as the source.
states no floorspace or electrical capacity, so none is recorded → 31 MW IT load explained
UK AI Energy Index → - status· Index
Construction of Colt London 4 started in February 2023 (Colt DCS via PR Newswire) and the operator describes it as under construction.
approved → under_construction
UK AI Energy Index → - summary· Index
The summary said the decision letter gives no capacity figure, but the decision letter and Inspector's Report state 72 MW of IT capacity, which the record already shows. Summary corrected.
no capacity figure is given → 72 MW IT load explained
UK AI Energy Index → - status· Index
Enabling works and earthworks began in October 2025 and phase 1 reserved matters were approved in December 2025 (BBC; Ridge).
approved → under_construction
UK AI Energy Index → - summary· Index
The summary said no electrical capacity was recorded while the record showed 720 MW of IT load from the committee report. The summary now matches the figure.
no electrical capacity figure recorded → 720 MW IT load explained
UK AI Energy Index → - summary· Index
The summary said no capacity was disclosed while the record showed 100 MW of grid-connection capacity. The summary now explains that the figure comes from the operator, not the planning register.
No capacity figure is disclosed → 100 MW grid-connection capacity explained
UK AI Energy Index → - operator· Index
DC01UK announced the sale of the South Mimms site to Equinix on 30 October 2025, confirmed by BNP Paribas Real Estate. Operator updated; the summary no longer describes the sale as unverified.
— → Equinix
UK AI Energy Index → - region· Index
Amazon Web Services, Plot 3 Maylands Avenue is in Dacorum, Hertfordshire, which is in the East of England region, not the South East. Region corrected; the project now counts under East of England in the area table and regional hubs.
South East → East of England
UK AI Energy Index → - region· Index
45 Maylands Avenue, Hemel Hempstead is in Dacorum, Hertfordshire, which is in the East of England region, not the South East. Region corrected; the project now counts under East of England in the area table and regional hubs.
South East → East of England
UK AI Energy Index → - region· Index
Kao Data Harlow, Plot F is in Harlow, Essex, which is in the East of England region, not the South East. Region corrected; the project now counts under East of England in the area table and regional hubs.
South East → East of England
UK AI Energy Index → - region· Index
DC01UK, South Mimms is in Hertsmere, Hertfordshire, which is in the East of England region, not the South East. Region corrected; the project now counts under East of England in the area table and regional hubs.
South East → East of England
UK AI Energy Index → - Correction· Report
Correction to report: AI Data Centres and the UK Electricity Grid 2026
Replaced the connection-queue finding again: our previous correction incorrectly conflated two different metrics. The 41 GW to 125 GW growth is Ofgem's measure of total contracted demand in the GB grid connection queue; the 217 GW removal and 238 GW total come from NESO's UK-wide connections reform, which covers both demand and generation projects and changed how the queue is counted. The two figures describe different scopes and are not the same number before and after reform. Both are now cited separately in the finding.
AI Data Centres and the UK Electricity Grid 2026 → - Correction· Report
Correction to report: AI & Energy Crisis: UK Power Demand Forecast 2026
Replaced the data-centre consumption finding: the previous wording claimed UK data centres consume roughly 6% of national electricity supply, up from 2% in 2023, which was factually wrong — no source supports the 6% figure and it conflicts with published estimates. The finding now uses DESNZ's data centre electricity consumption estimates for Great Britain: an estimated 4.5 TWh in 2024 (2% of grid electricity consumption), up from around 3.2 TWh in 2020. This was a factual error corrected against the primary source, not merely a missing citation.
AI & Energy Crisis: UK Power Demand Forecast 2026 → - Correction· Report
Correction to report: AI Energy Consumption Index: Q2 2025 Edition
Replaced the connection-queue finding again: our previous correction incorrectly conflated two different metrics. The 41 GW to 125 GW growth is Ofgem's measure of total contracted demand in the GB grid connection queue; the 217 GW removal and 238 GW total come from NESO's UK-wide connections reform, which covers both demand and generation projects and changed how the queue is counted. The two figures describe different scopes and are not the same number before and after reform. Both are now cited separately in the finding.
AI Energy Consumption Index: Q2 2025 Edition → - Correction· Report
Correction to report: UK AI Infrastructure Investment Report 2026
Replaced the AI Opportunities Action Plan investment finding: the previous wording claimed the plan totals £14bn+ "including Microsoft (£22bn), Vantage (£10bn), Google (£5bn) and Nscale (£2bn)", which was factually wrong — the components exceeded the stated total, and the Microsoft and Google figures do not appear in the announcement at all. The finding now reads: around £14bn, led by Vantage (£12bn) and Nscale (£2.5bn), alongside Kyndryl's commitment to create up to 1,000 AI-related jobs in Liverpool. This was a factual error corrected against coverage of the announcement, not merely a missing citation.
UK AI Infrastructure Investment Report 2026 → - New edition· Index
First published edition (version 1) created from existing published datapoints; 43 datapoints linked.
UK AI Energy Index → - Slough and Thames Valley evidence· Index
Regional evidence collection began with Slough and the Thames Valley, using SSEN Distribution's Iver 132kV grid supply point plan. The area covered is wider than Slough and no Slough-only figure is published, so the evidence is recorded at grid-supply-point level and no rating was assigned.
— → Two evidence records added; rating remains Insufficient evidence
Grid Pressure sub-index → - London evidence· Index
Regional evidence collection began with London. Substation-level constraint records were added from UK Power Networks' DNOA Outcomes Report. No rating was assigned: the methodology does not yet define the thresholds separating Low, Moderate, High and Severe, and both records come from one publisher.
— → Two evidence records added; rating remains Insufficient evidence
Grid Pressure sub-index → - Correction· Index
Corrected the reporting period of the 125 GW contracted demand queue reading from November 2025 to June 2025
As at November 2025 → June 2025
The earlier label used the publication date of a NESO presentation rather than the date the data describes. Corrected against Ofgem's consultation document, paragraph 2.6.
UK AI Energy Index → - New edition· Index
Added the November 2024 contracted demand queue reading of 41 GW
— → 41 GW
Historical reading of the same indicator, published by Ofgem alongside the June 2025 figure.
UK AI Energy Index → - Data-centre share of the queue· Index
Ofgem's press release states data centres account for at least 80 GW of the demand queue; Ofgem's consultation document states approximately 73 GW. Neither states the date the subtotal describes. The discrepancy is recorded and the indicator left unavailable rather than one figure being chosen.
— → Insufficient evidence — sources conflict
UK AI Energy Index → - Status updated· Index
DSIT "Estimate of Data Centre Capacity: Great Britain 2024" (published 1 May 2025) re-checked at source on 11 September 2026. GB total 1.6 GW and all eleven regional IT power figures confirmed unchanged; Autumn 2024 reporting period retained. Data Centre Growth Index status moved from "Baseline in development" to "Initial baseline published — coverage expanding".
UK AI Energy Index → - Value revised· Index
The NESO Clean Power 2030 modelling input is no longer presented as the principal baseline. It is retained as historical context with its original classification.
5 TWh per year (NESO modelling input) → Superseded by DESNZ 2024 estimate of 4.5 TWh
UK AI Energy Index → - Value revised· Index
The official DESNZ share for 2024 replaces an internal calculation whose reporting periods did not match.
1.9 per cent (internally calculated) → Superseded by DESNZ 2024 official share of 1.8 per cent
UK AI Energy Index → - Status updated· Index
Published the first evidence-based baseline for the AI Electricity Demand Index using the DESNZ Energy Trends June 2026 special feature article and its accompanying workbook.
Baseline in development → 2024 baseline
UK AI Energy Index → - Record added· Index
New record added following primary-source verification on the London Borough of Hillingdon planning register: hybrid application 78343/APP/2025/719, status Approval, decided 29 October 2025.
— → published
UK AI Energy Index → - Record added· Index
New record added on the basis of Environment Agency permit EPR/TP3530DV and its decision document, issued 27 February 2018. The 214MWth figure is generator thermal input and is excluded from capacity reporting.
— → published
UK AI Energy Index → - Record added· Index
New record added on the basis of Environment Agency permit EPR/PP3225SX, issued 13 September 2023 and recorded as effective on the public register.
— → published
UK AI Energy Index → - Record added· Index
New record added on the basis of Environment Agency permit EPR/QP3533ED and its decision document for Carlton Park Data Centre 1 & 2, operated by Santander UK Plc.
— → published
UK AI Energy Index → - Record added· Index
New record added following primary-source verification on the London Borough of Hillingdon planning register: application 38421/APP/2021/4045, status Approval, decided 26 April 2022.
— → published
UK AI Energy Index → - Record added· Index
New record added following primary-source verification on the Salford City Council planning register: application PA/2024/1810, approved with conditions, decision date 23 July 2025.
— → published
UK AI Energy Index → - Record added· Index
New record added following primary-source verification on the Cardiff Council planning register: application 24/00624/FUL, permission granted, decision issued 15 April 2025.
— → published
UK AI Energy Index → - Status publication· Index
Primary-source verification completed on the Northumberland County Council planning register: outline application 24/04112/OUTES permitted, decision issued 8 May 2025, for up to ten data centre buildings totalling 540,000 sqm GIA.
draft → published
UK AI Energy Index → - Status publication· Index
Primary-source verification completed on the South Lanarkshire Council planning register. Recorded as proposed: P/25/0490 is an EIA screening opinion (EIA required, issued 25 June 2025), not a planning permission for the campus.
draft → published
UK AI Energy Index → - Status publication· Index
Primary-source verification completed on the Northern Ireland Planning Portal: reserved matters application LA11/2023/1729/RM determined and granted on 9 October 2024. Application reference, decision, decision date, applicant and site address corrected against the statutory register.
draft → published
UK AI Energy Index → - Duplicate reviewed· Index
Assessed as the same scheme as the Atlantic Hub record at Maydown Road, Derry. No separate planning application exists under the GreenScale name. Held unpublished to prevent double-counting.
false → true
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → GreenScale, Foyle Port - proposed (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Haspielaw Farm, Hamilton - proposed (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Next Generation Data Newport campus - operational (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Teledata Wythenshawe - approved (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → AtlasEdge Colombus Way, Salford - approved (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Deep Green Bradford, Listerhills Road - approved (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Skelton Grange, Leeds - proposed (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Cambois data centre campus - proposed (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Cobalt Data Centre Campus (Stellium) - approved (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Kao Data Kenwood Point, Stockport - approved (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Ratcliffe-on-Soar power station site - proposed (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Northtree conversion, Hemel Hempstead - approved (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Amazon Web Services, Plot 3 Maylands Avenue - proposed (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Premier Park data centre, Park Royal - approved (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Kao Data Harlow, Plot F (KLON-07 and KLON-08) - proposed (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Data Centre Campus, Ampthill Road, Bedford - proposed (draft)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Equinix Wexham Road (former AkzoNobel site) - approved (draft)
UK AI Energy Index → - Record added· Index
New project record added and published; primary source from the planning or permitting authority verified.
— → 1 Redheughs Avenue data centre, South Gyle - refused (published)
UK AI Energy Index → - Record added· Index
New project record added and published; primary source from the planning or permitting authority verified.
— → Vantage Bridgend campus (former Ford engine plant) - proposed (published)
UK AI Energy Index → - Record added· Index
New project record added and published; primary source from the planning or permitting authority verified.
— → DC01UK, South Mimms - approved (published)
UK AI Energy Index → - Record added· Index
New project record added and published; primary source from the planning or permitting authority verified.
— → Manor Farm and land north of Wraysbury Reservoir - approved (published)
UK AI Energy Index → - Record added· Index
New project record added and published; primary source from the planning or permitting authority verified.
— → VIRTUS Stockley Park campus - operational (published)
UK AI Energy Index → - Record added· Index
New project record added and published; primary source from the planning or permitting authority verified.
— → Equinix LD8 - operational (published)
UK AI Energy Index → - Record added· Index
New project record added and published; primary source from the planning or permitting authority verified.
— → Digital Realty Crawley - operational (published)
UK AI Energy Index → - Record added· Index
New project record added and published; primary source from the planning or permitting authority verified.
— → Global Switch London - operational (published)
UK AI Energy Index → - Record added· Index
New project record added as a private draft; evidence insufficient for publication.
— → Atlantic Hub, Foyle Port - approved (draft)
UK AI Energy Index → - gb-data-centre-electricity-consumption.limitations· Index
Phase 1 audit: a newer NESO estimate exists. The historical record is retained, not overwritten.
No limitation recorded → Flagged as superseded by NESO FES 2025 (7.6 TWh); retained as the published November 2024 position.
UK AI Energy Index → - Grid Pressure Index· Index
Phase 4 expansion from the NESO Grid Code Development Forum pack.
No record → Added total contracted connection demand in the GB queue: 125 GW (November 2025), recorded as an all-technology figure.
UK AI Energy Index → - Data Centre Growth Index· Index
Phase 3 expansion from the DSIT regional capacity table.
No record → Added colocation data-centre IT capacity for eleven Great Britain regions (autumn 2024), totalling 1.6 GW.
UK AI Energy Index → - Electricity Demand Index· Index
Phase 2 expansion from NESO primary documents opened and read in full.
No record → Added: GB data-centre demand 7.6 TWh (FES 2025); connected capacity 2.4 GW; GB total demand 263 TWh (2023); GB peak demand 58 GW (2023); GB total demand 287 TWh (2030 forecast); calculated data-centre share 1.9%; 2035 demand 30-41 TWh; 2050 demand 51-71 TWh plus the earlier 62 TWh figure.
UK AI Energy Index → - ai-attributable-electricity-demand.caveats· Index
Phase 1 audit: data-gap note required by the methodology.
No caveat recorded → Recorded why this indicator remains "Insufficient evidence": no reviewed UK source separates AI workloads from wider data-centre consumption.
UK AI Energy Index → - Uk-ai-capable-capacity-requirement-2030.value text· Index
Phase 1 audit: the UK Compute Roadmap says "at least 6GW". The published wording was more precise than the source.
6 GW → At least 6 GW
UK AI Energy Index → - gb-data-centre-electricity-consumption-2030.limitations· Index
Phase 1 audit: FES 2025 replaces the Clean Power 2030 demand trajectory. The historical forecast is retained.
No limitation recorded → Flagged as superseded for forecasting purposes by FES 2025 (30-41 TWh by 2035).
UK AI Energy Index → - Gb-colocation-data-centre-capacity.publication date· Index
Phase 1 audit: the DSIT research and analysis page was published on 1 May 2025; 11 March 2025 is the date the underlying Parliamentary Question answer was first published. Both dates are now recorded.
2025-03-11 → 2025-05-01
UK AI Energy Index → - Value revised· Index
First evidence-based baseline entry, verified against the original source document and approved for publication.
— → 5
UK AI Energy Index → - Value revised· Index
First evidence-based baseline entry, verified against the original source document and approved for publication.
— → 6
UK AI Energy Index → - Value revised· Index
First evidence-based baseline entry, verified against the original source document and approved for publication.
— → 1.6
UK AI Energy Index → - Value revised· Index
First evidence-based baseline entry, verified against the original source document and approved for publication.
— → 22
UK AI Energy Index → - New edition· Index
UK AI Energy Index framework v1.0 published — indicator definitions, sources, update schedules and confidence levels.
Initial release of the index structure. Readings are compiled manually and published indicator by indicator as each source is verified.
UK AI Energy Index →
8. Takedowns and unpublishing
We only unpublish a page where there is a legal requirement, a serious privacy or safety risk, or where a piece is so wrong that correcting it is not possible. In those cases the URL is retained with a short note explaining that the content was withdrawn and why.
9. Third-party news items
Items in our news section summarise and link to reporting published elsewhere. If the original publisher corrects or retracts a story, tell us and we will update or remove our summary. Corrections to the original article itself must be raised with that publisher.
10. If you are not satisfied
Reply to our response setting out why you disagree. Your complaint will be reviewed again by the editor, who has final responsibility for published content — see the editorial team page. Our wider publishing rules are set out in our editorial standards.