As of 19 October 2026, Europe's AI compute build-out has three layers. The EU has 19 smaller AI Factories running or being set up. It has opened a call for up to seven much larger gigafactories. The UK runs its own growth zone programme. The hard limits are electricity, grid connections and permits, not money alone.
This post is the overview. Four companion posts go deeper on the EU gigafactory call, the UK programme, Mistral and sovereign AI in France and Germany, and the power and permitting problem. Everything below is dated and labelled by source. Private company figures are unaudited. Nothing here is investment advice, and nothing is a prediction.
Key numbers at a glance
- 19 AI Factories listed by the European Commission, with 13 more "Antennas" attached (Commission AI Factories page, last updated 12 August 2026).
- Up to 7 AI Gigafactories in the EU call, opened 30 July 2026 (EuroHPC Joint Undertaking, 30 July 2026).
- Up to 10 billion euros of EU and national public money for the gigafactories, expected to unlock at least 20 billion euros of private investment (Commission pages, July and August 2026).
- 12 November 2026: deadline for gigafactory bids. Selection is expected in early 2027. Operations are expected within 18 months of contract signature (EuroHPC and Commission, 30 July 2026).
- 200 billion euros: the headline InvestAI ambition announced in February 2025, of which CSIS reports 150 billion euros as industry pledges and 50 billion as Commission money (CSIS analysis, 22 April 2025).
- 3 June 2026: date of the Commission's proposed Cloud and AI Development Act, which aims to triple EU data centre capacity in five to seven years (Commission proposal COM(2026) 502).
- 15 percent: the share of the EU cloud market held by EU providers in 2022, down from 29 percent in 2017 (same proposal, Commission figures).
- 5 UK AI Growth Zones announced by 29 January 2026 (UK government press release, 29 January 2026).
- 6 gigawatts: the UK's stated need for AI-capable data centre capacity by 2030 (UK Compute Roadmap, page shows publication July 2025 and an update stamp of 23 April 2026).
- 22 percent: the share of Ireland's metered electricity used by data centres in 2024 (Central Statistics Office, 10 June 2025).
- 21 billion euros or more: Mistral's valuation after its 3 billion euro Series D (Euronews, 8 September 2026, citing the company).
- 18 member states signed up to buy compute from the gigafactories through joint procurement (Commission, 30 July 2026).
- 76 expressions of interest for gigafactories in 2025, covering 60 sites in 16 member states (Commission, 30 June 2025).
A short glossary first
A few terms come up in every article on this subject, so here they are once.
A GPU is a graphics processing unit, the type of chip that does most AI training and serving. A gigawatt (GW) is one billion watts of electrical power, and a megawatt (MW) is one million. A large AI data centre is now described in hundreds of megawatts, which is why electricity comes up so much.
The grid connection queue is the waiting list to plug a new large customer into the electricity network. A PPA, or power purchase agreement, is a long contract to buy electricity from a specific generator at an agreed price. Permitting means the planning, environmental and building approvals needed before construction.
"Sovereign" in this context means different things to different speakers. It can mean compute physically located in a country, owned by local companies, run under local law, or all three. The UK Compute Roadmap, for example, defines sovereign capacity as physically located in the UK and aligned with national goals, not rented from abroad.
Layer one: EU AI Factories
An AI Factory, in the Commission's vocabulary, is an ecosystem built around an AI-optimised supercomputer. It offers computing time and support to start-ups, small companies, industry and researchers. The EuroHPC Joint Undertaking, the EU body that buys supercomputers jointly with member states, runs the programme. EuroHPC says the factories offer free, customised support to start-ups and small companies.
The Commission's AI Factories page lists 19 factories and 13 Antennas. The timeline on that page runs like this:
- January 2024: an amendment to the EuroHPC Regulation made AI Factories possible.
- December 2024: seven consortia were selected, in Finland, Germany, Greece, Italy, Luxembourg, Spain and Sweden.
- March 2025: six more were selected, in Austria, Bulgaria, France, Germany, Poland and Slovenia.
- October 2025: six more were launched, in Czechia, Lithuania, the Netherlands, Romania, Spain and Poland, and thirteen Antennas were selected.
The Antennas sit in Belgium, Cyprus, Hungary, Ireland, Latvia, Malta and Slovakia, plus partner countries Iceland, Moldova, North Macedonia, Serbia, Switzerland and the United Kingdom. The page also says at least nine new AI-optimised supercomputers will be bought, which it says would more than triple current EuroHPC AI computing capacity.
A note on consistency: EuroHPC's own AI Factories page lists 12 existing and 6 new factories, which adds to 18, while the Commission page and the gigafactory call text say 19. This looks like a page that has not been updated in step, but it is a reason to check the live pages before quoting a count.
The money behind this layer is public. The Commission says investment in supercomputing and AI Factories from the Commission, member states and associated countries will reach 10 billion euros across 2021 to 2027 through EuroHPC. A CSIS analysis from April 2025 argued that only about 7 billion euros of a figure described as 10 billion was actually committed at that time. That is the author's reading, not a Commission statement, and the two figures cover slightly different things, so treat the gap as a question rather than a finding.
Layer two: the gigafactories
The gigafactory idea first appeared in the InvestAI announcement in February 2025. CSIS summarised the split as 200 billion euros of total ambition, with 150 billion coming from a private pledge called the AI Champions Initiative (over 60 European companies) and 50 billion from the Commission, and 20 billion euros dedicated to gigafactories.
The Commission then tested demand. On 30 June 2025 it reported 76 expressions of interest from 16 member states, covering 60 sites, with respondents foreseeing at least three million latest generation GPUs in total. Those were not bids; the Commission called them input for a non-binding roster of candidates and planned the formal call for the fourth quarter of 2025. The call opened about seven months after that plan.
On 30 July 2026 the EuroHPC Joint Undertaking opened the formal call for tenders. The current numbers are:
- Up to seven gigafactories, expected in at least seven member states, some possibly cross-border.
- Up to 10 billion euros in EU and national public funding, with at least 20 billion euros of private investment expected, for a combined figure above 30 billion euros.
- Two lots. Lot 1 covers up to four projects, with up to 100 million euros of EU funding in phase one and up to 400 million more in phase two. Lot 2 covers up to three projects, with up to 200 million in phase one and up to 800 million in phase two.
- Each facility is described by the Commission as holding over 100,000 advanced AI processors, and the call sizes lots relative to Europe's most powerful current AI Factory: at least equal in phase one, rising to three times in phase two for Lot 1, and up to twice rising to four times for Lot 2.
The companion explainer on the EU AI Gigafactories call goes through the lots, timeline and open questions in full. Here, the point is the scale gap. An AI Factory is a supercomputer with a help desk. A gigafactory is meant to be an industrial site that sells compute as a service, with public money acting as a first customer. The Commission describes the joint public funding as an anchor customer, meaning the EU and member states will jointly buy access time.
Layer three: private and national projects
A lot of European capacity will not come through the EU programme at all. Examples, each covered in detail in the companion posts:
- Mistral, the French AI company, announced a 3 billion euro Series D led by Samsung Electronics on 8 September 2026 (Euronews, citing the company). It says it already spends 4 billion euros on data centres in France and Europe, with one site outside Paris and another under construction in Sweden.
- Deutsche Telekom and Nvidia announced an "Industrial AI Cloud" in Munich with up to 10,000 Blackwell GPUs, valued at over one billion euros and privately funded (The Decoder, 4 November 2025, reporting company statements).
- Stargate Norway, announced on 31 July 2025 by Nscale, Aker and OpenAI, targets 230 MW at Narvik with 100,000 Nvidia GPUs by the end of 2026 (Nscale press release).
- France announced 109 billion euros of investment pledges at the Paris AI summit in February 2025, mostly company commitments and some conditional (SiliconANGLE, 10 February 2025).
Not every announcement has turned into built capacity. OpenAI paused Stargate UK in April 2026 (The Next Web, 9 April 2026). The lesson for any reader is to separate three things: a pledge, a signed contract, and a building with power connected.
Layer four: the UK
The UK is outside the EU but inside this story. Its AI Opportunities Action Plan, published 13 January 2025, recommended at least a 20 times expansion of the national AI Research Resource by 2030 and proposed AI Growth Zones to speed up data centre construction. By 29 January 2026 the government counted five zones: Oxfordshire, North Wales, South Wales, the North East of England and Lanarkshire in Scotland.
The zone releases show how the UK frames scale. The North East zone, announced in September 2025 around sites at Blyth and Cobalt Park, came with an expected up to 30 billion pounds of private investment, including 10 billion pounds committed by Blackstone at Blyth, and a stated increase in energy capacity to 1.1 GW within six years (UK government, 16 September 2025). The South Wales zone, along the M4 corridor from Newport to Bridgend, is described as having the potential to harness over 1 GW by the early 2030s, with Vantage Data Centers and Microsoft working with the government (UK government, 20 November 2025). Both are stated potentials, not built capacity. The UK AI Growth Zones explainer covers the numbers.
The real constraint: electricity and permits
Money is the visible part of every announcement, but power is the part that decides dates. A building can take 18 to 24 months to construct. The Next Web, summarising reporting on the UK, says grid connections can take three to eight years. That is a mismatch of several years.
The Commission has proposed a response. The Cloud and AI Development Act, dated 3 June 2026, would let member states designate "data centre acceleration zones" with one aggregated baseline permit and a limit of 12 months for permit decisions inside those zones. The proposal's own financial statement sets a goal that by 2030 operators should be able to obtain all permits in under 18 months, and that by 2030 the EU should at least triple its data centre capacity. A significant detail: the baseline permit excludes grid connection permits, which stay a separate process.
Ireland shows what happens when demand outruns supply. The Central Statistics Office reported data centres used 6,969 GWh in 2024, 22 percent of metered electricity, up from 5 percent in 2015. The regulator's December 2025 policy now requires new large data centres to bring matching generation or storage. The explainer on Europe's data centre power and permitting limits covers this in detail.
What is firm and what is uncertain
Firm, because an official page or primary document says so:
- The gigafactory call exists, closes 12 November 2026, and offers the lot structure above.
- The Cloud and AI Development Act was proposed on 3 June 2026. A proposal is not law. ITdaily noted on 9 June 2026 that negotiations with Parliament and Council were only starting.
- The UK counts five growth zones, and the Lanarkshire zone has a financing package announced 18 August 2026.
- Ireland's regulator published its connection decision on 12 December 2025.
Uncertain:
- Which consortia will bid, where, and with which chips. The call pages name no bidders.
- Power figures for the gigafactories. The call pages give no megawatt requirement, only processor counts relative to existing machines.
- Whether private pledges will become built capacity. Several are conditional, and one flagship UK project was paused.
- Company valuations and revenue, which are unaudited and often come from the company itself.
- Where the bulk of the 2028 to 2035 EU money comes from. The EuroHPC page says part of the public financing comes from the current budget framework and the bulk from the next one (2028 to 2035), which had not been agreed as of 19 October 2026.
What to watch next
- 12 November 2026: the gigafactory bid deadline, then the list of consortia, if published.
- Early 2027: the selection decisions.
- The Parliament and Council positions on the Cloud and AI Development Act, especially on the 12 month permit limit and the grid provisions.
- Whether Stargate UK or Nscale's Loughton site moves from announcement to construction.
- Grid operator publications on connection processes. Ireland's operators were due to publish a data centre connection process by 31 March 2026, and one law firm reported on 15 April 2026 that it had not yet appeared.
- Mistral's compute build-out in France and Sweden, against its stated plan to rely fully on capacity it builds itself.
Why this matters to a software team
Compute location affects data residency questions, procurement rules, and which cloud regions customers will demand. The proposed EU act introduces four sovereignty assurance levels for cloud services, which public bodies would apply according to their own risk assessments. If you sell into European public bodies, track that. For your own dependency and software supply chain exposure, nothing in the build-out changes the basics: know what you run. Safeguard's SBOM and dependency scanning, with a free scan at https://gold.safeguard.sh/scan, covers that inventory.
Related reading: AI chip market share in 2026, how OpenAI's compute commitments and Stargate work, how Anthropic's compute commitments are structured, and what is reported about AI lab revenue and margins.
Quick check
What is the difference between an AI Factory and an AI Gigafactory?
An AI Factory is a supercomputer ecosystem with support services for start-ups, industry and researchers, run through EuroHPC. A gigafactory is a much larger site, described by the Commission as holding over 100,000 advanced AI processors, with up to seven planned and a call closing 12 November 2026.
Is the Cloud and AI Development Act law yet?
No. The Commission proposed it on 3 June 2026 (COM(2026) 502). It still needs agreement between the European Parliament and the Council, and ITdaily reported on 9 June 2026 that negotiations were only starting.
Why does power matter more than chips for dates?
Buildings can be finished in roughly 18 to 24 months, while grid connections can take three to eight years, according to reporting summarised by The Next Web in April 2026. A site without a grid connection cannot run, however many chips are on order.
Sources
- European Commission, AI Factories page (last update 12 August 2026): https://digital-strategy.ec.europa.eu/en/policies/ai-factories
- EuroHPC Joint Undertaking, AI Gigafactories call, 30 July 2026: https://eurohpc-ju.europa.eu/eurohpc-joint-undertaking-launches-ai-gigafactories-call-2026-07-30_en
- Commission press release text reproduced by Hajdu-Bihar County Chamber, 30 July 2026: https://hbkik.hu/?p=90105
- EuroHPC Joint Undertaking, AI Factories: https://eurohpc-ju.europa.eu/ai-factories_en
- CSIS, The EU AI Continent Action Plan, 22 April 2025: https://www.csis.org/analysis/eu-ai-continent-action-plan
- European Commission, Cloud and AI Development Act proposal COM(2026) 502, 3 June 2026 (copy hosted by the Dutch Eerste Kamer): https://www.eerstekamer.nl/nonav/bijlage/20260609/com_2026_502_proposal_for_a/document3/f=/vmy8optarooc.pdf
- European Parliament Legislative Observatory summary of the Act: https://oeil.europarl.europa.eu/oeil/en/document-summary?id=1903654
- ITdaily, 9 June 2026: https://itdaily.com/blogs/cloud/eu-aims-to-triple-data-center-capacity-by-2033-but-is-the-plan-enough/
- Euronews, Mistral Series D, 8 September 2026: https://www.euronews.com/2026/09/08/mistral-ai-raises-record-3-billion-in-samsung-led-funding-round
- The Decoder, Deutsche Telekom and Nvidia, 4 November 2025: https://the-decoder.com/10000-nvidia-blackwell-gpus-set-to-increase-germanys-ai-capacity-by-50-percent/
- Nscale, Stargate Norway press release, 31 July 2025: https://nscale.com/press-releases/stargate-norway-nscale-aker-openai
- SiliconANGLE, France investment pledges, 10 February 2025: https://siliconangle.com/2025/02/10/france-announces-e109b-investment-boost-ai-ecosystem/
- The Next Web, OpenAI pauses Stargate UK, 9 April 2026: https://thenextweb.com/news/openai-pauses-stargate-uk-energy-costs-regulation
- UK government, AI Opportunities Action Plan, 13 January 2025: https://www.gov.uk/government/publications/ai-opportunities-action-plan/ai-opportunities-action-plan
- UK government, UK Compute Roadmap: https://www.gov.uk/government/publications/uk-compute-roadmap/uk-compute-roadmap
- UK government, North East AI Growth Zone, 16 September 2025: https://www.gov.uk/government/news/north-east-england-set-for-billions-in-investment-and-thousands-of-jobs-as-uk-and-us-ink-tech-partnership
- UK government, South Wales AI Growth Zone, 20 November 2025: https://www.gov.uk/government/news/ai-to-power-national-renewal-as-government-announces-billions-of-additional-investment-and-new-plans-to-boost-uk-businesses-jobs-and-innovation
- European Commission, 76 respondents express interest in AI Gigafactories, 30 June 2025: https://digital-strategy.ec.europa.eu/en/news/overwhelming-response-76-respondents-express-interest-european-ai-gigafactories-initiative
- UK government, Lanarkshire named latest AI Growth Zone, 29 January 2026: https://www.gov.uk/government/news/more-than-3400-jobs-and-targeted-support-for-local-communities-to-help-tackle-the-cost-of-living-as-lanarkshire-named-latest-ai-growth-zone
- Central Statistics Office, Data Centres Metered Electricity Consumption 2024, 10 June 2025: https://www.cso.ie/en/releasesandpublications/ep/p-dcmec/datacentresmeteredelectricityconsumption2024/keyfindings
- A&L Goodbody, on the CRU decision of 12 December 2025: https://www.algoodbody.com/insights-publications/data-centres-and-the-grid-how-recent-irish-policy-will-shape-the-sectordata-centres-and-the-grid-how-recent-irish-policy-will-shape-the-sector
Last reviewed: 19 October 2026.