There are four million households in the UK living in fuel poverty, many of which may find they can benefit from a switch of energy supplier.
By sourcing a deal with a cheap dual fuel provider after comparing electricity prices online, consumers could see a significant amount shaved off their bill overnight.
Friends of the Earth's climate campaigner Dave Timms labels the figures a "national disgrace" and calls for the government to act.
"The freezing weather last winter should have been a wake-up call to politicians of all parties, yet the coalition has not set out a clear strategy to eliminate fuel poverty," he notes.
As well as suffering from the high price of their electricity and gas bill, a huge number of families with children and pensioners are said to have poor health, perhaps as a result of power worries.
Another problem facing millions of Britons is a lack of savings, which could be relied upon to pay for bills should prices rise further. HSBC revealed this week about 15 million people have no more than five day's worth of wages set aside.
Posted by Anne Yevel
Click here to run an energy price comparison, and see if you could be paying less for your gas and electricity.