When the rest of the UK generating industry was privatised, the Government introduced the Non-Fossil Fuel Obligation, initially as a means of supporting the nuclear generators, which remained under state ownership until the formation of British Energy. British Energy, the private sector company that now operates the UK's more modern nuclear plants, came close to bankruptcy and in 2004 was restructured with UK government investment of over £3 billion, although this has since been paid back in full. In January 2009, British Energy was bought for approximately £12 billion by EDF Energy (a subsidiary of Électricité de France (EDF)) and Centrica (a major operator of CCGT power stations and renewable sources in the UK and parent company of British Gas) in an 80/20 split.