- 4 updates
Ofgem has questioned the "Big Six" energy firms' claims that soaring bills are down to a rise in wholesale market prices of gas and power, the Financial Times reported.
The energy regulator's figures claim that wholesale prices increased by only 1.7% over the past year, which should have been reflected in a rise of only around £10 on bills.
Centrica argued that Ofgem's methodology is '"flawed".
Energy UK have issued a warning that "no-one should be cold this winter" and urged people to contact their energy company if they have failed to deliver insulation improvements in time to homes.
A statement said:
The Local Government Association have warned that tens of thousands of poor and elderly people will face another winter of high bills and cold homes because of the failure by energy companies to deliver insulation improvements in time.
The organisation, which represents 373 councils in England and Wales, urged the companies to work with local authorities to get the work done.
Energy companies are falling behind in their obligation to pay for insulating the homes of tens of thousands of poor and elderly people, council leaders claimed.
An analysis released by the Local Government Association suggested that the power giants are more than 60% behind their target to deliver more energy-efficient homes.
This is despite raising almost £1 billion so far this year through the Energy Company Obligation (ECO) levy, which adds around £50 to the average household's annual bill.
The ECO is designed to raise money to deliver warmer homes for people on limited incomes and lower their utility bills by reducing the amount of energy they need to use.