Marcoule nuclear power plant
Marcoule nuclear power plant is a nuclear site in France with 4 units on record. None is currently operating.
Units
| Unit | Status | Type | Model | Gross MW | Online |
|---|---|---|---|---|---|
| Unit Astrid 1 | Cancelled | FBR | ASTRID | 600 | - |
| Unit G1 | Retired | - | - | 7 | 1956 |
| Unit G2 | Retired | GCR | - | 43 | 1959 |
| Unit G3 | Retired | GCR | - | 43 | 1960 |
Marcoule nuclear power plant in context
The 3 units with both construction and grid dates on record took 1.0 to 4.1 years (median 4.1) from construction start to grid connection; the median across all reactors connected in the 1950s is 3.5 years.
The nearest other tracked nuclear sites are Tricastin nuclear power plant (21 km), Cruas nuclear power plant (55 km) and St. Alban nuclear power plant (140 km).
Build time by unit
| Unit | Construction start | Grid connection | Years | Fleet median, same decade |
|---|---|---|---|---|
| Unit G1 | 1955 | 1956 | 1.0 | 3.5 (1950s) |
| Unit G2 | 1955 | 1959 | 4.1 | 3.5 (1950s) |
| Unit G3 | 1956 | 1960 | 4.1 | 5.0 (1960s) |
Nearest tracked nuclear sites
| Site | Country | Distance | Operating GW gross |
|---|---|---|---|
| Tricastin nuclear power plant | France | 21 km | 3.8 |
| Cruas nuclear power plant | France | 55 km | 3.8 |
| St. Alban nuclear power plant | France | 140 km | 2.8 |
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 | Occitanie, France |
|---|---|
| Coordinates | 44.1433, 4.7094 |
| Elevation | about 45 mabove sea level |
| Setting | About 60 km from the sea |
| Region | Western Europe |
| Units by status | Cancelled: 1 Retired: 3 |
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 | Commissariat À L'Energie Atomique |
|---|---|
| Operators | Compagnie Generale Des Matieres Nucleaires |
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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