Hunterston
Hunterston, nuclear power plant in United Kingdom, operated 4 gas-cooled reactors between 1964 and 2022 and is now shut down.
- Country
- United Kingdom
- Units
- 4
- Technology
- GCR
- Net capacity
- —
- First grid connection
- 1964
- Operator
- Magnox · EDF Energy
- Owner
- Nuclear Decommissioning Authority (United Kingdom) · EDF Energy Ltd
- Status
- Shut down
See also: alerts for this plant · every plant in United Kingdom · Vendor: British nuclear consortia (NPC, APC, EE/B&W/T, GEC, NNC) · Vendor: The Nuclear Power Group · every GCR reactor · how a GCR works

Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Hunterston A1 | Gas-cooled (GCR / AGR) | Magnox | Shut down | 150 | 595 | Oct 1957 | Feb 1964 | Mar 1990 | — |
| Hunterston A2 | Gas-cooled (GCR / AGR) | Magnox | Shut down | 150 | 595 | Oct 1957 | Jun 1964 | Dec 1989 | — |
| Hunterston B1 | Gas-cooled (GCR / AGR) | AGR | Shut down | 490 | 1,496 | Nov 1967 | Feb 1976 | Nov 2021 | — |
| Hunterston B2 | Gas-cooled (GCR / AGR) | AGR | Shut down | 495 | 1,496 | Nov 1967 | Mar 1977 | Jan 2022 | — |
Data: IAEA PRIS · Global Energy Monitor · updated on Aug 1, 2026
Hunterston A1, a 150 MWe GCR (Magnox), started construction in 1957 and operated from 1964 to 1990.
Hunterston A2, a 150 MWe GCR (Magnox), started construction in 1957 and operated from 1964 to 1989.
Hunterston B1, a 490 MWe GCR (AGR), started construction in 1967 and operated from 1976 to 2021.
Hunterston B2, a 495 MWe GCR (AGR), started construction in 1967 and operated from 1977 to 2022.
Operator: Magnox (Hunterston A1, Hunterston A2) · EDF Energy (Hunterston B1, Hunterston B2).
Owner: Nuclear Decommissioning Authority (United Kingdom) (Hunterston A1, Hunterston A2) · EDF Energy Ltd (Hunterston B1, Hunterston B2).