The story
The company was established in 2009 as an E.ON UK and RWE Npower joint venture. The company announced its intention to install about 6,000 MWe of new nuclear capacity adjacent to the existing Wylfa and Oldbury nuclear power stations. Horizon initially evaluated building either Areva 1,650 MWe EPR reactors or Westinghouse 1,100 MWe AP1000 reactors between 2020 and 2024.
In March 2012, E.ON and RWE Npower placed Horizon up for sale as a going concern. One bidder was a joint venture of China Guangdong Nuclear Power Group and the China National Nuclear Corporation.
However, on 29 October 2012, it was announced that Hitachi would buy Horizon for £696 million, and the sale was completed on 26 November 2012.
From Wikipedia’s article on Horizon Nuclear Power, shared under CC BY-SA 4.0.4