MPs on the business and enterprise select committee are investigating claims that the market is rigged by the big six energy suppliers, four of which are foreign owned. David Hunter, energy analyst at consultancy McKinnon & Clarke, said: "The Government's inability to make long-term energy security decisions over the last decade is coming home to roost. Since the 'dash for gas' in the 1990s, the lack of political will to make tough decisions has left Britain short of power."