
The news comes hours before finance minister Jeremy Hunt is due to announce the government’s budget.
Britain said it would now keep in place a price cap that will see average annual bills stay at £2,500 (US$3,039) for an extra three months.
Under previous plans, government subsidies had been scheduled to be scaled back from the end of March meaning that bills would have risen to £3,000.
“High energy bills are one of the biggest worries for families, which is why we’re maintaining the Energy Price Guarantee at its current level,” Hunt said in a statement.
Wholesale prices are expected to fall over the period meaning the help will no longer be necessary beyond after that period, the statement added.