Help will be at hand for millions of energy comparison customers who take part in the government's Green Deal when it comes into effect next year.
At the third reading of the Energy Bill this week, MPs voted through measures designed to encourage more people to invest in energy efficiency products for their homes in order to reduce energy bills and carbon emissions.
Energy secretary Chris Huhne told the House of Commons that the scheme was the first of its kind in the world and would protect against future price rises while helping low-income households get out of fuel poverty.
He said: "The bulk of what this Bill is about is about energy efficiency, which is about energy saving, which of course actually means we will need fewer types of electricity generation, including windmills."
The legislation is also set to oversee the rollout of smart meters to homes and businesses across the country.
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