Superphénix nuclear power plant
Superphénix nuclear power plant is a nuclear site in France with 1 unit on record. None is currently operating.
Units
| Unit | Status | Type | Model | Gross MW | Online |
|---|---|---|---|---|---|
| Superphénix nuclear power plant | Retired | FBR | Na-1200 | 1,242 | 1986 |
Unit by unit
Each unit's rating, type and milestone dates as recorded by the Global Nuclear Power Tracker, with any correction we made to it. A dash or "not disclosed" means the source does not give the value.
Superphénix nuclear power plant Retired
| Reactor type | Fast reactor (FBR) |
|---|---|
| Model | Na-1200 |
| Size class | Large |
| Gross capacity | 1,242MW |
| Net capacity | 1,200MW |
| Thermal output | 3,000MWt |
| Enrichment | 15–20% fissile, or plutonium |
| NSSS vendor | not on record |
| Owner | Electricité de France SA100% |
| Operator | Electricité de France |
| Construction start | 13 Dec 1976 |
|---|---|
| First criticality | 7 Sep 1985 |
| Grid connection | 14 Jan 1986 |
| Commercial operation | 1 Dec 1986 |
| Permanent shutdown | 31 Dec 1998 |
Superphénix nuclear power plant in context
The one unit with both construction and grid dates on record took 9.1 years from construction start to grid connection; the median across all reactors connected in the 1980s is 7.3 years.
The nearest other tracked nuclear sites are Bugey nuclear power plant (16 km), St. Alban nuclear power plant (68 km) and Cruas nuclear power plant (137 km).
Build time by unit
| Unit | Construction start | Grid connection | Years | Fleet median, same decade |
|---|---|---|---|---|
| Superphénix nuclear power plant | 1976 | 1986 | 9.1 | 7.3 (1980s) |
Nearest tracked nuclear sites
| Site | Country | Distance | Operating GW gross |
|---|---|---|---|
| Bugey nuclear power plant | France | 16 km | 3.7 |
| St. Alban nuclear power plant | France | 68 km | 2.8 |
| Cruas nuclear power plant | France | 137 km | 3.8 |
How these are worked out: ranks use gross operating capacity; ages count from the start-up year on record, as on the age page; build times run from construction start to grid connection, as on the build-times page; ratings are the tracker's net and design net capacity, as on the uprates page. Distances are straight-line between exact positions, so a site with only an approximate position gets none. A unit missing a date or a rating is left out of the figure that needs it.
| Location | Creys-Mépieu, Auvergne-Rhône-Alpes, France |
|---|---|
| Coordinates | 45.7613, 5.4701 |
| Elevation | about 205 mabove sea level |
| Setting | About 250 km from the sea |
| Region | Western Europe |
| Units by status | Retired: 1 |
Elevation is read at the listed coordinates from a 30 m terrain model (SRTM 30 m). Two independent models differ by a median of 6 m across our plants and by up to about 40 m on steep or coastal ground, and a point on a shoreline can read as sea level. Distance to the water is measured to a generalised 1:10 million coastline, so a few kilometres or less is not resolved. This is context, not a design-basis or flood-risk figure.
| Owners | Electricité de France SA |
|---|---|
| Operators | Electricité de France |
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Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
- GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data