That is the conclusion of price comparison website Uswitch.com:
According to the research, household energy bills have more than doubled in the last eight years. If this trend continues, uSwitch.com says the average annual bill is set to break the £1,500 barrier by 2015 and will continue upwards to hit £2,766 a year by 2018.
An annual energy bill of £1,500 is the tipping point at which energy bills will become unaffordable in the UK, says the research. When this point is reached, 77% will be forced to ration their energy use, 59% will go without adequate heating and 36% will be forced to turn their heating off entirely.
I wouldn't like to be a politician when that happens.
(H/T Haunting the Library)