Almaraz
Reactor Data
Reactor Units
Every power reactor at this site as listed in the IAEA Power Reactor Information System (PRIS): reactor type and model, net electrical capacity, grid connection and commercial operation dates, and current status.
2 units: 2 operational.
Net capacity in service: 2,017 MWe.
| Unit | Type | Model | Net MWe | Construction | Grid | Commercial Op | Shutdown | Status |
|---|---|---|---|---|---|---|---|---|
| Almaraz 1 | PWR | WH 3LP | 1,011 | 1973-07-03 | 1981-05-01 | 1983-09-01 | Operational | |
| Almaraz 2 | PWR | WH 3LP | 1,006 | 1973-07-03 | 1983-10-08 | 1984-07-01 | Operational |
Capacity, milestones and suppliers
| Unit | Design MWe | Gross MWe | Thermal MWt | First Criticality | Reactor Supplier | Turbine Supplier | Notes |
|---|---|---|---|---|---|---|---|
| Almaraz 1 | 900 | 1,049 | 2,947 | 1981-04-05 | WESTINGHOUSE ELECTRIC CORPORATION | WESTINGHOUSE ELECTRIC CORPORATION | |
| Almaraz 2 | 900 | 1,044 | 2,947 | 1983-09-19 | WESTINGHOUSE ELECTRIC CORPORATION | WESTINGHOUSE ELECTRIC CORPORATION |
Lifetime performance, through 2025
| Unit | Electricity Supplied | Load Factor | Energy Availability | Operating Factor |
|---|---|---|---|---|
| Almaraz 1 | 310.3 TWh | 86.2% | 86.6% | 88.8% |
| Almaraz 2 | 307.5 TWh | 87.7% | 87.8% | 90.3% |
Operator: CENTRALES NUCLEARES ALMARAZ-TRILLO (ID/UFG/ENDESA/HC/NUCLENOR)
Owner: Iberdrola, Endesa, Gas Natural
Source: IAEA Power Reactor Information System (PRIS), as of 2026-11-02.
Fuel Cycle Facilities
Fuel cycle plants at this site, as listed in the IAEA Nuclear Fuel Cycle Facilities Database: what each plant does, its scale and design capacity, the years it operated, its current status and who operates it.
1 facility: 1 in operation.
| Facility | Type | Scale | Design Capacity | Operated | Status | Operator |
|---|---|---|---|---|---|---|
| AFR Dry storage Facility, Almaraz | AFR Dry Spent Fuel Storage | Commercial | 297 t HM | 2018– | In Operation |
Source: IAEA Nuclear Fuel Cycle Facilities Database (NFCFDB), as of 2026-10-13.
Working Here
Per Diem Rates FY 2026
Per diem covers lodging and meals & incidental expenses (M&IE) for government and contractor travel near this facility. Rates are from the U.S. State Department foreign per diem tables for FY 2026.
$246
Lodging/Night
$146
M&IE/Day
$392
Total/Day
Spain: rate for locations the State Department does not list separately
U.S. Department of State foreign per diem, for U.S. government and contractor travel.
Photos
Photos of this facility from the NukeWorker photo gallery. Click the header or any photo to browse the full album.
Facility Map
Interactive satellite map showing the facility's geographic location. Marker color indicates current status: green for online, red for offline, orange for reduced power. Click the header to open in Google Maps satellite view.
39.8065, -5.6962
Location & Contact
Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
Plant Facts
About This Site
Written by NukeWorker from public records: facts that do not change. Operator, status and capacity come from the live data elsewhere on this page. Sources: Wikipedia: Almaraz Nuclear Power Plant.
Almaraz is a nuclear power plant at Almaraz in Extremadura, Spain. Its cooling water comes from the Tagus River through the Arrocampo Reservoir, which was built in 1976, mainly for that purpose.
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Construction began in 1973. The two units are Westinghouse three-loop pressurized water reactors, rated at about 1,011 and 1,006 MWe. Unit 1 was first connected to the grid on 1 May 1981, and Unit 2 on 8 October 1983.