Switch to renewable energy could save £13bn a year

Britain could save up to

The International Energy Agency has estimated that with North Sea oil and gas supplies rapidly dwindling, the UK will be importing 80% of its gas needs by 2020.

Britain lags behind almost every country in Europe in terms of deployment of renewable energy but is committed to getting 15% of its total energy needs from sustainable sources by 2020, a target many experts say will be very tough to meet.