Electricity in.
Intelligence out.

AI lives in big buildings full of computers, plugged into the power grid. Estonia is turning one of them, at Hüüru near Tallinn, into a factory that makes intelligence.

What it is

A bakery turns flour into bread. This turns electricity into answers.

Power in, answers out, all day and all night. A cabinet of AI computers draws about ten times an ordinary one, and almost every watt comes back out as heat.[10][12]

In one line

A normal data centre is a library. An AI factory is a foundry.

Why it matters

Right now, almost none of this happens in Europe.

Nearly every AI tool Europeans use runs on machines owned somewhere else. Fine for everyday things. Not fine for a hospital, a bank or a ministry, which often may not send its records abroad at all.

The European Commission has said this out loud: too little computing capacity is holding the continent's own economy back. So it has started paying for buildings, not just for software.[14]

Sovereign compute, in plain terms

Whose courts you end up in when something goes wrong.

Why Estonia

Cold air, cheap clean power, and engineers who are already here.

The climate does the cooling

Cooling is the largest running cost after electricity. A cold country gets much of it free.[1]

Power is cheaper and cleaner

Electricity costs less than in the large western European markets, and most of it is now renewable.[1][18]

Building here costs less

Construction runs well below the Nordics, Frankfurt, London, Amsterdam, Paris and Dublin, at the same European standards.[1]

Inside the EU and NATO

One legal system, one currency, the NATO cyber defence centre and an EU border systems agency.[1]

The grid changed sides

In February 2025 the Baltics left the Russian-controlled power system for the Continental European grid, without blackouts.[19]

The skills already exist

Twenty years of a digital state and a software industry. The engineers who would run this are here.[20]

What Estonia gets out of it

Estonia already sells electricity. This sells what the electricity makes.

Run the same power through a building like this and it leaves as a service Europe pays much more for. The interesting part is not the technology. It is where the money ends up.

The same power, worth more

A kilowatt sold as computing time is worth far more than a kilowatt sold as electricity, and the difference is taxed here.

Jobs people actually want

Estonia's technology sector is 8% of the economy and pays about 1.8 times the average wage.[20]

Estonian keeps working

Big models handle Estonian by translating rather than understanding it. Researchers here train their own, and those models need somewhere to run.[13]

One thing we will not pretend to know

Nobody has published a figure for what this project adds to Estonian GDP, and we are not going to invent one. The numbers above describe the technology sector, not this one building.

What it is used for

Nobody buys computing power. They buy what it does.

Hospitals

Reading scans and spotting things early. Patient records are exactly the data that may not leave the country.[7]

Weather

Forecasts for farmers, shipping, storm warnings and energy planning. The EU lists this among the biggest wins.[15]

Factories

Spotting a faulty part on the line, and knowing a machine will fail before it does.[15]

Banks

Catching fraud while a payment is happening, under rules about where the data may sit.[7]

Government

Translation, documents and citizen services, on systems the state can audit itself.[7]

Smaller companies

Buying a room full of AI chips is out of reach. Renting a slice of someone else's is not.[7]

Services

Three ways in.

The building provides room, power, cooling and connection. You bring your own machines. The only difference is how much of the building is yours.[3]

Shared halls
Colocation
From a single rack
  • Space in a shared data hall
  • Renewable-backed power and cooling
  • Choose your own network providers
  • Audited to the European standard
Join the waitlist
Private capacity
Dedicated rooms
Rooms sized to the customer
  • A private room rather than shared space
  • Being rebuilt for AI density
  • Close to the Nordic network backbone
  • Support and partner programmes
Join the waitlist
Sovereign
Government and national
Built to the requirement
  • Isolated and separately audited
  • Everything stays inside EU jurisdiction
  • Help with public sector compliance
  • Site visit and full documentation
Join the waitlist

Colocation and dedicated rooms are the two lines the operator publishes.[3] Sovereign is not a named tier of theirs: it is what a dedicated room built to EU jurisdiction and public-sector audit requirements would look like. Pricing is not public either way, so confirm anything commercial with them directly.

The building

This building already exists.

31.5 MW
campus power[3]
14,500 m²
floor area, two levels[3]
2022
year it opened[4]
€200M
investment by end of 2026[2]

The largest data centre in the Baltics, twenty minutes west of Tallinn, is now being rebuilt inside so AI computers can move in. Most of the money is being spent within the existing walls.[2][4]

Capacity opens
in late 2026.

The waitlist opens in the fourth quarter of 2026. Places go in the order they arrive.

08References

Every figure on this site is traceable.

Each reference is marked with what kind of source it is, so you can weigh it yourself.

All 20 references
01 Tensor Estate
Estonian cost, energy and latency comparisons.
Company itself
02 Invest in Estonia, the €200M AI expansion
Investment totals, timing, and the decision to rebuild inside.
State agency
03 Greenergy Data Centers
31.5 MW, 14,500 m², EN 50600, PUE target, renewable supply, service lines.
Company itself
04 Invest in Estonia, the most advanced data centre in the region
Opened 2022, floor area, oxygen fire system, regional standing.
State agency
05 Amber Infrastructure, new minority shareholder
The precise ownership position, dated 28 July 2026.
Official announcement
06 ERR News, entrepreneurs investing millions
Independent confirmation of the figures and the named investors.
Journalism
07 EuroHPC, six additional AI Factories
The October 2025 round, 19 sites in total, and the sectors served.
EU body
08 EuroHPC, the first seven AI Factories
The first round. Estonia signed the agreement but hosts no site.
EU body
09 European Commission, AI Factories policy
The official definition of an EU AI Factory.
EU body
10 NVIDIA, what is an AI factory
Where the term comes from. NVIDIA sells the chips, so read it accordingly.
Sells the chips
11 International Energy Agency, Energy and AI
415 TWh in 2024, about 945 TWh projected by 2030.
International agency
12 Network World, AI rack densities and liquid cooling
The 8 to 12 kW and 120 to 130 kW rack figures.
Journalism
13 University of Tartu, teaching Estonian to language models
Estonian language model work and why public foreign models are ruled out.
University
14 European Commission, AI Gigafactories
InvestAI, and Europe's compute shortage described as a bottleneck.
EU body
15 EuroHPC, AI Factories systems and sectors
The industries served, including weather, manufacturing and health.
EU body
16 Data Center Map, Greenergy Tallinn DC-1
An independent registry listing the same 31.5 MW and 14,500 m² figures, with no phase breakdown.
Third party
18 ERR News, reporting Elering figures for 2025
Renewables at 41% of Estonian consumption and 68% of production in 2025.
Grid operator data
19 Eurelectric, Baltic grid synchronisation
The Baltics left BRELL on 8 February 2025 and synchronised the next day.
Industry body
20 Trade with Estonia, the ICT sector
8% of GDP, at about 1.8 times the average wage.
State agency
17 Utilitas, district heating in Estonia
Background on heat reuse. It says nothing about Hüüru.
Background
21 ERR News, Estonia eyes a share of the EU's AI computing drive
A separate, larger EuroHPC Gigafactories tender opened 30 July 2026. Estonia has not won a site, only signalled interest. Bids close 12 November 2026.
Journalism

Compiled from the public documents above, correct as of August 2026. This is not an offer to sell anything. Figures change and should be confirmed with the operator. Where a claim could not be verified, this site says so rather than filling the gap.