Energy watchdog Ofgem has increased energy price caps designed to protect many who are on poor deals. Up to 15m households are to see their energy bills rise as a result.
Price caps for default and standard will increase, and variable gas and electricity tariffs by £117 to £1,254 a year from April.
Dermot Nolan, chief executive of Ofgem, said: “Under the caps, households on default tariffs are protected and will always pay a fair price for their energy, even though the levels will increase from 1 April.
“We can assure these customers that they remain protected from being overcharged for their energy and that these increases are only due to actual rises in energy costs, rather than excess charges from supplier profiteering.”
The price cap will be reviewed again in August by the watchdog, for the winter price cap period that will come into force, 1 October.