Bugey
Bugey, nuclear power plant in France, operates 4 pressurized water reactors with 3,580 MW net installed capacity and has been in service since 1972.
Unit Bugey 4 has been operating for 47 years, since 1979. Its 3,580 MW net are enough to supply about 11,300,000 households.
- Country
- France
- Units
- 5
- Technology
- GCR · PWR
- Net capacity
- 3,580 MWe
- First grid connection
- 1972
- Operator
- Electricité de France
- Owner
- Electricité de France SA
- Status
- Operating
See also: alerts for this plant · every plant in France · Vendor: Framatome · every GCR reactor · how a GCR works · every PWR reactor · how a PWR works

Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Bugey 1 | Gas-cooled (GCR / AGR) | UNGG | Shut down | 540 | 1,954 | Dec 1965 | Apr 1972 | May 27, 1994 | — |
| Bugey 2 | Pressurized water (PWR) | CP0 | Operating | 910 | 2,785 | Nov 1, 1972 | May 10, 1978 | — | 89.1 % (2024) |
| Bugey 3 | Pressurized water (PWR) | CP0 | Operating | 910 | 2,785 | Sep 1, 1973 | Sep 21, 1978 | — | 28.6 % (2024) |
| Bugey 4 | Pressurized water (PWR) | CP0 | Operating | 880 | 2,785 | Jun 1, 1974 | Mar 8, 1979 | — | 59.5 % (2024) |
| Bugey 5 | Pressurized water (PWR) | CP0 | Operating | 880 | 2,785 | Jul 1, 1974 | Jul 31, 1979 | — | 57.9 % (2024) |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Bugey 1, a 540 MWe GCR (UNGG), started construction in 1965 and operated from 1972 to 1994.
Bugey 2, a 910 MWe PWR (CP0), started construction in 1972, was connected to the grid in 1978 and is still operating, with a 89.1% load factor in 2024.
Bugey 3, a 910 MWe PWR (CP0), started construction in 1973, was connected to the grid in 1978 and is still operating, with a 28.6% load factor in 2024.
Bugey 4, an 880 MWe PWR (CP0), started construction in 1974, was connected to the grid in 1979 and is still operating, with a 59.5% load factor in 2024.
Bugey 5, an 880 MWe PWR (CP0), started construction in 1974, was connected to the grid in 1979 and is still operating, with a 57.9% load factor in 2024.
Operator: Electricité de France.
Owner: Electricité de France SA (Bugey 1, Bugey 2, Bugey 3, Bugey 4, Bugey 5).