About NRS

Nuclear Restoration Services (NRS) is a wholly owned subsidiary of the Nuclear Decommissioning Authority, responsible for safely decommissioning 15 nuclear sites across the UK and restoring them for future generations.

Our portfolio includes Dounreay, home to Scotland’s largest environmental clean-up and demolition programme and the former centre of fast reactor research and development.

NRS also manages the decommissioning the 12 first and second-generation nuclear sites – Berkeley, Bradwell, Chapelcross, Dungeness A, Hinkley Point A and B, Hunterston A and B, Oldbury, Sizewell A, Trawsfynydd and Wylfa – alongside the reactor research sites at Harwell and Winfrith.

As the UK’s decommissioning mission evolves, NRS is being entrusted with a growing share of the nation’s nuclear legacy, underpinned by our expertise and track record of mission delivery. In 2026, the advanced gas-cooled reactor (AGR) sites at Hunterston B and Hinkley Point B transferred from EDF to NRS for decommissioning. Over the coming decade, Dungeness B, Torness, Heysham 1 and 2, and Hartlepool will also join NRS as defuelling is completed.

Alongside our decommissioning mission, NRS operates the Maetwrog hydroelectric power station in North Wales.

Explore the interactive map to find out much more about NRS sites.

Berkeley site

Berkeley occupies a 27-hectare site of Special Scientific Interest on the eastern bank of the River Severn in Gloucestershire and was also home to the Berkeley research laboratories.

Bradwell site

Bradwell was built on the edge of a former World War II airfield, one and a half miles from the Essex coastline.

Chapelcross site

Chapelcross was Scotland’s first commercial nuclear power station and was built on the 92-hectare site of a World War II training airfield in Dumfries and Galloway.

Dounreay division

Dounreay was the centre of the UK’s research programme into nuclear fast breeder reactors for four decades, and is now a site of decommissioning, major construction and waste management as it dismantles one of the most complex and hazardous legacies of the 20th century.

Dungeness A site

Dungeness A occupies about a quarter of a 91-hectare civil nuclear site on the Kent coast in an area of Special Scientific Interest. It is a very exposed location on a shingle beach on the edge of the English Channel.

Harwell site

Harwell is located on a 91 hectare site in Oxfordshire and is the birthplace of the UK nuclear industry. Originally an RAF station, it became Britain’s Atomic Energy Research Establishment in 1946.

Hinkley Point A site

Hinkley Point A is located on 19 hectares on the Somerset coast. Low carbon electricity generation ended in 2000 following 35 years of safe operation. Decommissioning began in 2005 when defueling was completed.

Hinkley Point B site

Hinkley Point B is located next to Hinkley Point A on the Somerset coast in the Southwest of England. It holds the distinction of being the first advanced gas-cooled reactor (AGR) site to generate electricity to the grid in the UK back in February 1976. The site was the second AGR in the UK to be declared fuel free in January 2026.

Hunterston A site

Hunterston A is located on 65-hectare site on a promontory off the Ayrshire coastline, 30 miles south-west of Glasgow. Low carbon electricity generation ended in 1990 followed by defueling in 1995.

Hunterston B site

Oldbury site

Oldbury occupies 39 hectares on the bank of the River Severn in South Gloucestershire. The site moved into its decommissioning phase following the completion of defueling in 2016.

Sizewell A site

Sizewell A is located near Leiston in Suffolk and is a twin reactor site. The site became fully operational in 1966 and shut down on 31 December 2006 after 40 years of low carbon electricity generation. Decommissioning commenced in 2014 when the defueling phase completed.

Trawsfynydd site

Trawsfynydd is located on a 15.4 hectare site in Snowdonia National Park, North Wales, Trawsfynydd was the first inland civil nuclear station and drew its cooling water from Llyn (lake) Trawsfynydd.

Winfrith site

Winfrith is located on a 84 hectare site in Dorset. It was constructed in the 1950s to enable vital research into reactor design.

Wylfa site

Wylfa is located on a 50 hectare site on the north coast of Anglesey. It was the biggest and last of the first generation Magnox gas-cooled nuclear reactors to be built. Electricity generation ceased in 2015 bringing a safe conclusion to Magnox reactor generation in the UK.