Nuclear power in the United Kingdom stated "We are an insurance policy for long-term stable supply and there is a price for that certainty". The UK has a large variety of different intermediate- and high-level radioactive wastes, coming from national programmes to develop nuclear weapons and nuclear power. It is a national responsibility to pay for the management of these. In addition, new nuclear power stations could be built, the waste management from which would be the private sector's financial responsibility, although all would be stored in a single facility. Most of the UK's higher-activity radioactive waste is currently held in temporary storage at Sellafield. On
Wylfa Nuclear Power Station nuclear station on a site adjacent to the old plant. An application to build two advanced boiling water reactors was submitted by Horizon Nuclear Power to the Office of Nuclear Regulation on 4 April 2017. Wylfa was the second nuclear power station to be built in Wales after Trawsfynydd in 1959. Following the closure of Trawsfynydd in 1991, Wylfa became Wales' only nuclear power station. Construction of Wylfa, which was undertaken by British Nuclear Design & Construction (BNDC), a consortium backed by English Electric, Babcock & Wilcox Ltd and Taylor Woodrow Construction, began in 1963. The reactors were supplied by