Site history

1995 to 2048 – decommissioning and regeneration

2008 – DRAGON and SGHWR are in safe care and maintenance.

2007 – The Nuclear Decommissioning Authority assumes ownership of the UKAEA site.

2004 – The Eastern end of the site, Winfrith Technology Centre is transferred to English Partnerships.

2000 – Winfrith continues with decommissioning, projects of which include; the high level rig bay, ZEBRA reactor and B31& B32 reactor halls.

1995 – Winfrith Technology Centre is launched and first tenant arrives.

1990s – Winfrith enters final stage of decommissioning the site and regenerating it for commercial activity.

1990s –  diversification and end of nuclear research

As UK Government announces end to reactor research, SGHWR is shut down and decommissioning begins. Winfrith diversifies into non-nuclear commercial activities.

1995 – Last operational reactor closes at Winfrith.

1960s-1990s – centre for reactor development

Winfrith operates eight reactors, ranging from zero energy reactors to the Steam Generating Heavy Water Reactor (SGHWR), which provides National Grid with enough electricity for a small town.

Site also has facilities for nuclear fuel manufacture and examination, plutonium laboratories and nuclear waste treatment and storage. 

1950s – early years

1958 – Winfrith site opens to offer additional space to UK’s rapidly expanding civil nuclear research programme.

Queen Visits Winfrith 1969

Image: Queen Visit 1969

SGHWR in operational days

Image: Arial View of SGHWR Winfrith

SGHWR Control Room

Image: SGHWR Control Room

SGHWR Fuel Pond

Image: SGHWR Fuel Pond