Japan · 33.515, 129.836Genkai
Genkai, nuclear power plant in Japan, operates 2 pressurized water reactors with 2,254 MW net installed capacity and has been in service since 1975.
Unit Genkai 3 has been operating for 32 years, since 1994. Its 2,254 MW net are enough to supply about 7,100,000 households.
- Country
- Japan
- Units
- 4
- Technology
- PWR
- Net capacity
- 2,254 MWe
- First grid connection
- 1975
- Operator
- Kyushu Electric Power
- Owner
- Kyushu Electric Power Co Inc
- Status
- Operating
See also: alerts for this plant · every plant in Japan · Vendor: Mitsubishi Heavy Industries · every PWR reactor · how a PWR works
Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Genkai 1 | Pressurized water (PWR) | Mitsubishi 2-loop (M 2LP) | Shut down | 529 | 1,650 | Sep 1971 | Feb 1975 | Apr 2015 | — |
| Genkai 2 | Pressurized water (PWR) | Mitsubishi 2-loop (M 2LP) | Shut down | 529 | 1,650 | Feb 1977 | Jun 1980 | Apr 2019 | — |
| Genkai 3 | Pressurized water (PWR) | Mitsubishi 4-loop (M 4LP) | Operating | 1,127 | 3,423 | Jun 1, 1988 | Jun 15, 1993 | — | 93.1 % (2024) |
| Genkai 4 | Pressurized water (PWR) | Mitsubishi 4-loop (M 4LP) | Operating | 1,127 | 3,423 | Jul 15, 1992 | Nov 12, 1996 | — | 82.2 % (2024) |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Genkai 1, a 529 MWe PWR (Mitsubishi 2-loop (M 2LP)), started construction in 1971 and operated from 1975 to 2015.
Genkai 2, a 529 MWe PWR (Mitsubishi 2-loop (M 2LP)), started construction in 1977 and operated from 1980 to 2019.
Genkai 3, a 1,127 MWe PWR (Mitsubishi 4-loop (M 4LP)), started construction in 1988, was connected to the grid in 1993 and is still operating, with a 93.1% load factor in 2024.
Genkai 4, a 1,127 MWe PWR (Mitsubishi 4-loop (M 4LP)), started construction in 1992, was connected to the grid in 1996 and is still operating, with a 82.2% load factor in 2024.
Operator: Kyushu Electric Power.
Owner: Kyushu Electric Power Co Inc (Genkai 1, Genkai 2, Genkai 3, Genkai 4).