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1990s: Decommissioning and the environment

The UK Atomic Energy Authority concentrated on decommissioning and environmental restoration at many of its sites.

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A new phase began as the UK Atomic Energy Authority concentrated on decommissioning and environmental restoration at many of its sites.

Culcheth, Lancashire, was the first UK nuclear site to be decommissioned, sold, and redeveloped for housing. Funding for fast reactor research and development ceased, resulting in the closure of the Dounreay Prototype Fast Reactor (PFR) in Caithness. At its height in 1997, 26% of the UK’s electricity was generated from nuclear power.

Dounreay radioactive release

Very small fragments of radioactive particles were accidentally released into the sea at Dounreay, Caithness, during early reprocessing operations. From 1997 to 2012 a project to retrieve the particles from the seabed was undertaken using divers and remotely operated vehicles. The risk of harm is very low, but monitoring of the local beaches and foreshore will continue into the future.

Sizewell B

After a 27-month public inquiry and a long construction period, Sizewell B in Suffolk, started in 1995 and became the first UK Pressurised Water Reactor (PWR). The planned duplicate build on other sites was cancelled as the Government was in an advanced stage of planning for privatising the industry.

Key events of the 1990s

1992

Culcheth was the first UK nuclear site to be decommissioned, remediated and sold for redevelopment.

1994

UK fast reactor research and development funding ceased.

1994

Sellafield’s Thermal Oxide Reprocessing Plant (THORP) began operating.

1995

Sizewell B reactor began operating, the first Pressurised Water Reactor (PWR) in the UK

1996

AEA Technology (AEAT) was privatised and Harwell, Risley & Winfrith business centres were launched.

1997

The Joint European Torus (JET) reactor achieved a world record amount of fusion generated power.

1997

Start of the clean-up of radioactive particles from the seabed at Dounreay, Caithness.

Explore our nuclear history

1930s

The 1930s was the age of atomic discovery.

1940s

The 1946 UK Atomic Energy Act and the beginning of the nuclear industry.

1950s

The world’s first full-scale commercial nuclear power station.

1960s

Pioneering research and development activities to make numerous reactor technologies work.

1970s

A significant change for the UK Atomic Energy Authority.

1980s

A decade for trading and exploiting technology.

1990s

The UK Atomic Energy Authority concentrated on decommissioning and environmental restoration at many of its sites.

2000s

The Nuclear Decommissioning Authority (NDA) was formed.