Chapelcross
Chapelcross, nuclear power plant in United Kingdom, operated 4 gas-cooled reactors between 1959 and 2004 and is now shut down.
- Country
- United Kingdom
- Units
- 4
- Technology
- GCR
- Net capacity
- —
- First grid connection
- 1959
- Operator
- Magnox
- Owner
- Nuclear Decommissioning Authority (United Kingdom)
- Status
- Shut down
See also: alerts for this plant · every plant in United Kingdom · Vendor: UK Atomic Energy Authority · every GCR reactor · how a GCR works

Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Chapelcross 1 | Gas-cooled (GCR / AGR) | Magnox | Shut down | 48 | 260 | Oct 1955 | Feb 1959 | Jun 2004 | — |
| Chapelcross 2 | Gas-cooled (GCR / AGR) | Magnox | Shut down | 48 | 260 | Oct 1955 | Jul 1959 | Jun 2004 | — |
| Chapelcross 3 | Gas-cooled (GCR / AGR) | Magnox | Shut down | 48 | 260 | Oct 1955 | Nov 1959 | Jun 2004 | — |
| Chapelcross 4 | Gas-cooled (GCR / AGR) | Magnox | Shut down | 48 | 260 | Oct 1955 | Jan 1960 | Jun 2004 | — |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Chapelcross 1, a 48 MWe GCR (Magnox), started construction in 1955 and operated from 1959 to 2004.
Chapelcross 2, a 48 MWe GCR (Magnox), started construction in 1955 and operated from 1959 to 2004.
Chapelcross 3, a 48 MWe GCR (Magnox), started construction in 1955 and operated from 1959 to 2004.
Chapelcross 4, a 48 MWe GCR (Magnox), started construction in 1955 and operated from 1960 to 2004.
Operator: Magnox.
Owner: Nuclear Decommissioning Authority (United Kingdom) (Chapelcross 1, Chapelcross 2, Chapelcross 3, Chapelcross 4).