PowerAtlas open data identifies 39 dedicated on-site data-centre power stations worldwide — the generators (gas, solar, fuel-cell, oil) built specifically to power data centres, separate from the grid. They are concentrated in the United States, and most are small relative to the campuses they serve, which is why hyperscalers increasingly turn to grid PPAs and nuclear restarts for bulk power. Below: on-site DC power stations by country, from open data.
| Country | On-site DC power stations |
|---|---|
| United States | 21 |
| United States of America | 9 |
| Canada | 3 |
| Ireland | 2 |
| United Kingdom | 2 |
| Brazil | 1 |
| Gibraltar | 1 |
PowerAtlas open data (WRI GPPD + Global Energy Monitor), plants whose name identifies a data-centre power station. CC BY 4.0.
| Station | Country | Fuel | MW |
|---|---|---|---|
| Chevron AI Data Center Project | United States | Gas | 5,000 |
| Creekstone Gigasite Data Center power station | United States | Gas | 2,000 |
| Longhorn Data Center power station | United States | Gas | 1,949 |
| Kingsboro NetZero Data Center power station | United States | Gas | 1,800 |
| Genesee Data Centre Project power station | Canada | Gas | 1,500 |
| Joule Capital Partners Data Center power station | United States | Gas | 1,500 |
| QTS Cambois Data Centre Campus | United Kingdom | Oil | 1,392 |
| CloudBurst Data Center power plant | United States | Gas | 1,200 |
| NRG Data Center power station 2 | United States | Gas | 1,200 |
| NRG Data Center power station 3 | United States | Gas | 1,200 |
| Beacon Data Centers Heartland Project | Canada | Gas | 920 |
| Mihta Askiy Data Center Project power station | Canada | Gas | 710 |
For grid power behind the campuses, see AI power deals tracker.
The on-site stations above are tiny next to the campuses they back. That gap is the whole story of the AI power crunch — hyperscale demand far outruns dedicated on-site generation, forcing reliance on the grid and on the long-lead options below:
| Power tier | Typical size | Role |
|---|---|---|
| On-site DC power station (this dataset) | 4-25 MW | Backup / fraction of load (solar, fuel-cell, gas, oil) |
| Hyperscale AI campus demand | 100-1,000+ MW | Met mostly from the grid |
| Nuclear PPA / restart (e.g. Three Mile Island) | 800-1,100 MW | Firm 24/7 grid supply via contract |
On-site figures from PowerAtlas open data; campus and PPA figures from public announcements. The mismatch is why grid power deals dominate.
Every gas turbine, HRSG and steam line in this fleet — and every kW of data-centre waste heat — is a hot surface. Inzonex modular removable insulation cuts surface heat loss up to 96% while keeping flanges accessible for maintenance.
See Inzonex modular insulation →PowerAtlas open data lists 39 on-site data-centre power stations worldwide — purpose-built generation separate from grid supply.
The largest count in this open dataset is United States with 21.
Mostly no — on-site generation covers backup and a fraction of load; the bulk comes from the grid, increasingly via long-term PPAs with nuclear and gas plants.
PowerAtlas open data (WRI GPPD / Global Energy Monitor, CC BY 4.0). Counts reflect plants named as data-centre power stations in the open dataset and undercount campuses drawing purely from the grid. Author: Dmytro Aheiev (ORCID 0009-0001-5512-0291).
Externally-sourced figures are attributed and link to primary sources; deal terms are public company/trade-press announcements. Author: Dmytro Aheiev (ORCID 0009-0001-5512-0291).