Tricastin
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.
4 units: 4 operational.
Net capacity in service: 3,660 MWe.
| Unit | Type | Model | Net MWe | Construction | Grid | Commercial Op | Shutdown | Status |
|---|---|---|---|---|---|---|---|---|
| Tricastin 1 | PWR | CP1 | 915 | 1974-11-01 | 1980-05-31 | 1980-12-01 | Operational | |
| Tricastin 2 | PWR | CP1 | 915 | 1974-12-01 | 1980-08-07 | 1980-12-01 | Operational | |
| Tricastin 3 | PWR | CP1 | 915 | 1975-04-01 | 1981-02-10 | 1981-05-11 | Operational | |
| Tricastin 4 | PWR | CP1 | 915 | 1975-05-01 | 1981-06-12 | 1981-11-01 | Operational |
Capacity, milestones and suppliers
| Unit | Design MWe | Gross MWe | Thermal MWt | First Criticality | Reactor Supplier | Turbine Supplier | Notes |
|---|---|---|---|---|---|---|---|
| Tricastin 1 | 915 | 955 | 2,785 | 1980-02-21 | FRAMATOME | ALSTOM | |
| Tricastin 2 | 915 | 955 | 2,785 | 1980-07-22 | FRAMATOME | ALSTOM | |
| Tricastin 3 | 915 | 955 | 2,785 | 1980-11-29 | FRAMATOME | ALSTOM | |
| Tricastin 4 | 915 | 955 | 2,785 | 1981-05-31 | FRAMATOME | ALSTOM |
Lifetime performance, through 2025
| Unit | Electricity Supplied | Load Factor | Energy Availability | Operating Factor |
|---|---|---|---|---|
| Tricastin 1 | 261.2 TWh | 71.6% | 75.4% | 79.0% |
| Tricastin 2 | 262.8 TWh | 72.3% | 75.3% | 78.3% |
| Tricastin 3 | 262.9 TWh | 73.3% | 75.8% | 78.3% |
| Tricastin 4 | 262.8 TWh | 73.9% | 78.1% | 80.4% |
Operator: ÉLECTRICITÉ DE FRANCE
Owner: ÉLECTRICITÉ DE FRANCE
Source: IAEA Power Reactor Information System (PRIS), as of 2026-10-19.
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.
10 facilities: 4 in operation, 1 shutdown, 3 decommissioning, 1 decommissioned, 1 under construction.
| Facility | Type | Scale | Design Capacity | Operated | Status | Operator |
|---|---|---|---|---|---|---|
| Comurhex Pierrelatte (UF6) | Conversion to UF6 | Commercial | 14000 t HM/year | 1961– | In Operation | New Areva |
| Areva NC W Plant | Re-Conversion to U3O8 (Rep. U) | Commercial | 14000 t HM/year | 1984– | In Operation | Orano |
| ORANO TU5 Plant | Re-Conversion to U3O8 (Rep. U) | Commercial | 1600 t HM/year | 1995– | In Operation | Orano |
| Georges Besse II | Uranium Enrichment | Commercial | 7500 MTSWU/year | 2011– | In Operation | Orano |
| Comurhex Pierrelatte (Rep. U) | Conversion to UF6 | Commercial | 350 t HM/year | 1976– | Shutdown | New Areva |
| Eurodif (Georges Besse) | Uranium Enrichment | Commercial | 10800 MTSWU/year | 1979–2011 | Decommissioning | Orano |
| Framatome - Pierrelatte | Fuel Fabrication (U Pellet, Pin, FA) | Commercial | 500 t HM/year | 1986–1999 | Decommissioned | Framatome |
| TU2 Cogema | Conversion to UO2 | Commercial | 350 t HM/year | 1988– | Decommissioning | Orano |
| TU2 Cogema Reprocessing Line | Re-Conversion to U3O8 (Rep. U) | Commercial | 1200 t HM/year | 1988– | Decommissioning | Orano |
| Comurhex II - Pierrelatte (UF6) | Conversion to UF6 | Commercial | 15000 t HM/year | 2018– | Under Construction | New Areva |
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.
$220
Lodging/Night
$132
M&IE/Day
$352
Total/Day
France: 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.
44.329, 4.72154
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: Tricastin Nuclear Power Plant.
Tricastin is a nuclear site beside the Donzère-Mondragon canal in southeastern France, near Pierrelatte and Saint-Paul-Trois-Châteaux, in the Drôme department. It has four pressurized water reactors of the CP1 design, supplied by Framatome, and fuel cycle plants on the wider site.
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Construction began on unit 1 in November 1974, unit 2 in December 1974, unit 3 in April 1975 and unit 4 in May 1975, and the units were first connected to the grid between May 1980 and June 1981. The Eurodif gaseous diffusion enrichment plant ran from 1979 to 2012. In July 2008, about 18,000 liters of uranium solution overflowed from a tank, and some of it reached the ground; the event was rated level 1 on the International Nuclear Event Scale.