Sellafield Vitrification should ensure safe storage of waste in the UK for the middle to long term. Construction of the Sellafield MOX Plant (SMP) was completed in 1997, though justification for the operation of the plant was not achieved until October 2001. Mixed oxide, or MOX fuel, is a blend of plutonium and natural uranium or depleted uranium which behaves similarly (though not identically) to the enriched uranium feed for which most nuclear reactors were designed. MOX fuel is an alternative to low enriched uranium (LEU) fuel used in the light water reactors which predominate in nuclear power generation. MOX also
Wylfa Nuclear Power Station Wylfa Nuclear Power Station Wylfa Nuclear Power Station () is a former Magnox power station situated west of Cemaes Bay on the island of Anglesey, North Wales. Construction of the two 490 MW nuclear reactors, known as "Reactor 1" and "Reactor 2", began in 1963. They became operational in 1971. Wylfa was located on the coast because seawater was used as a coolant. In 2012 Reactor 2 was shut down. Three years later, Reactor 1 was switched off on 30 December 2015 so ending 44 years of operation at the site. Wylfa Newydd (literally New Wylfa) is a proposed new