Thermal Oxide Reprocessing Plant

Thermal Oxide Reprocessing Plant
The THORP building viewed from the south behind an internal rail line
Map
CountryEngland, United Kingdom
LocationCumbria, North West England
Coordinates54°24′56″N 3°30′06″W / 54.4155°N 3.5017°W / 54.4155; -3.5017
Statusstorage only
Construction began1974
Commission date1994
Decommission date2018 (ceased reprocessing, fuel storage continuing)
Construction cost£1.8 billion
OwnerNuclear Decommissioning Authority
OperatorSellafield Ltd
Cooling sourceForced draft cooling towers

The Thermal Oxide Reprocessing Plant, or THORP, is a nuclear fuel reprocessing plant at Sellafield in Cumbria, England. THORP is owned by the Nuclear Decommissioning Authority and operated by Sellafield Ltd, the site licensee.

Spent nuclear fuel from nuclear reactors was reprocessed to separate the 96% uranium and the 1% plutonium from the 3% radioactive wastes, which are treated and stored at the plant. The uranium is then made available for customers to be manufactured into new fuel, and the plutonium incorporated into mixed oxide fuel.

On 14 November 2018 it was announced that reprocessing operations had ended at THORP after earning £9bn in revenue. The receipt and storage facility (which makes up nearly half of THORP's physical footprint), will operate through to the 2070s to receive and store spent nuclear fuel from the UK's PWR and AGR fleet.[1] The decommissioning is expected to start around 2075.[2]

  1. ^ Cite error: The named reference wnn-20181114 was invoked but never defined (see the help page).
  2. ^ NDA Annual Report and Accounts 2018 to 2019. NDA, 4 July 2019