Oldbury

Thornbury, Gloucestershire

Technical specifications, photos, nearby jobs, satellite map, and per diem rates for Oldbury.

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Reactor Data

Reactor Units

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Every power reactor at this site as listed in the IAEA Power Reactor Information System (PRIS): reactor type and model, net electrical capacity, grid connection and commercial operation dates, and current status.
2 units: 2 permanent shutdown.
Unit Type Model Net MWe Construction Grid Commercial Op Shutdown Status
Oldbury A-1 GCR MAGNOX 217 1962-05-01 1967-11-07 1967-12-31 2012-02-29 Permanent Shutdown
Oldbury A-2 GCR MAGNOX 217 1962-05-01 1968-04-06 1968-09-30 2011-06-30 Permanent Shutdown
Capacity, milestones and suppliers
Unit Design MWe Gross MWe Thermal MWt First Criticality Reactor Supplier Turbine Supplier Notes
Oldbury A-1 300 230 730 1967-08-01 THE NUCLEAR POWER GROUP, LTD. C.A.PARSONS
Oldbury A-2 300 230 660 1967-12-01 THE NUCLEAR POWER GROUP, LTD. C.A.PARSONS
Lifetime performance, through 2025
Unit Electricity Supplied Load Factor Energy Availability Operating Factor
Oldbury A-1 62.3 TWh 76.2% 75.9% 85.5%
Oldbury A-2 65.6 TWh 81.3% 80.7% 88.9%
Operator: MAGNOX, LTD
Owner: Nuclear Decommissioning Authority
Source: IAEA Power Reactor Information System (PRIS), as of 2026-10-14.

Working Here

Per Diem Rates FY 2026

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Per diem covers lodging and meals & incidental expenses (M&IE) for government and contractor travel near this facility. Rates are from the U.S. State Department foreign per diem tables for FY 2026.
$252
Lodging/Night
$108
M&IE/Day
$360
Total/Day
United Kingdom: rate for locations the State Department does not list separately
U.S. Department of State foreign per diem, for U.S. government and contractor travel.

Photos

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Photos of this facility from the NukeWorker photo gallery. Click the header or any photo to browse the full album.

Facility Map

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Interactive satellite map showing the facility's geographic location. Marker color indicates current status: green for online, red for offline, orange for reduced power. Click the header to open in Google Maps satellite view.

51.6475, -2.57034

Location & Contact

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Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
Address:
Thornbury, Gloucestershire BS35 1RQ, United Kingdom
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Plant Facts

About This Site

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Written by NukeWorker from public records: facts that do not change. Operator, status and capacity come from the live data elsewhere on this page. Sources: Wikipedia: Oldbury nuclear power station.

Oldbury is a nuclear power station site on the south bank of the River Severn near Oldbury-on-Severn, in South Gloucestershire, England. It had two Magnox reactors housed in prestressed concrete pressure vessels, whereas earlier Magnox stations used steel.

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Construction began in 1961. Reactor 1 reached criticality on 18 September 1967 and first generated electricity in November 1967, and reactor 2 began generating in April 1968. The station was officially opened on 10 June 1969 by Tony Benn. On 30 May 2007, a fire on a generator transformer bushing forced a shutdown, with no injuries or release of radiation. Reactor 2 was permanently shut down on 30 June 2011 and reactor 1 on 29 February 2012.