BNFL has proposed to the UK government that the country's growing stockpile of separated plutonium be turned on to MOX fuel and used in a new dedicated power reactor which is capable of taking a full load of MOX. Both the Westinghouse AP-1000 and System 80+ advanced reactor designs would be suitable, and would be built close to the fuel fabrication plant at Sellafield. Britain has over 60t of Pu, both civil and surplus military, comprising about a quarter of the world's inventory of separated plutonium. British Energy, which operates at least one reactor capable of burning one third MOX in its core, is unwilling to make the modifications necessary and embrace the MOX fuel cycle.