Sainsbury's Supermarkets has signed a seven-and-a-half year contract to outsource its energy management to Enron Energy Services. The agreement aims to reduce Sainsbury's energy expenditure and improve efficiency. Sainsbury's currently spends in excess of £50 million a year on energy. Enron Energy Services will provide gas and electricity to all Sainsbury's Supermarkets' sites in the UK including offices, depots and 450 stores. Enron will also manage a £15 million investment programme of energy efficiency measures aimed at reducing consumption by 12 per cent over two and a half years. This programme will contribute to Sainsbury's environmental target of reducing CO2 emissions from its buildings.