BWR-5
The BWR-5 is a Generation II boiling water reactor from GE Vernova Hitachi Nuclear Energy. 8 units are operating and 0 are under construction, out of 25 on record.
Operating
8
8.2 GW gross
Under construction
0
Planned
1
Cancelled
0
5 retired
A BWR-4 with improved recirculation flow control and a larger Mark II containment, an over-under arrangement that replaces the torus with a cylindrical suppression pool directly beneath the drywell. LaSalle, Nine Mile Point 2, Kashiwazaki-Kariwa and Laguna Verde are BWR-5s.
Design
| Vendor | GE Vernova Hitachi Nuclear Energy |
|---|---|
| Reactor type | Boiling water reactor (BWR) |
| Generation | II |
| Capacity range | 800–1450 MWe gross |
| Also recorded as | BWR-5 (Mark 2)in the source tracker |
| Coolant | Light water |
| Typical enrichment | 3–5% U-235 |
Where it is built
| United States | 5 units, 4 operating |
|---|---|
| Japan | 18 units, 2 operating |
| Mexico | 2 units, 2 operating |
How long it took to build
Years from construction start to grid connection, for units with both dates on record. The median across 13 finished units is 5.6 years.
| Unit | Country | Started | Connected | Years |
|---|---|---|---|---|
| Fukushima Daiichi nuclear power plant 6 | Japan | 1973 | 1979 | 5.5 |
| Fukushima Daini nuclear power plant 1 | Japan | 1976 | 1981 | 5.4 |
| LaSalle nuclear power plant 1 | United States | 1973 | 1982 | 9.0 |
| Fukushima Daini nuclear power plant 2 | Japan | 1979 | 1983 | 4.1 |
| LaSalle nuclear power plant 2 | United States | 1973 | 1984 | 10.6 |
| Columbia nuclear power plant 1 | United States | 1972 | 1984 | 11.8 |
| Fukushima Daini nuclear power plant 3 | Japan | 1981 | 1984 | 3.7 |
| Fukushima Daini nuclear power plant 4 | Japan | 1981 | 1986 | 5.6 |
| Nine Mile Point nuclear power plant 2 | United States | 1975 | 1987 | 12.0 |
| Shimane nuclear power plant 2 | Japan | 1985 | 1988 | 3.4 |
| Laguna Verde nuclear power plant 1 | Mexico | 1976 | 1989 | 12.5 |
| Laguna Verde nuclear power plant 2 | Mexico | 1977 | 1994 | 17.4 |
| Onagawa nuclear power plant 2 | Japan | 1991 | 1994 | 3.7 |
All BWR-5 units
Sources
- BWR-5, vendor documentation
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data