GETTYBritish Gas electricity price increases will affect millions of Britons
Electricity bills are set to increase by 12.5 per cent with the higher prices set to come in on September 15, just as temperatures begin to drop.
The Big Six energy giant confirmed the price rise after a blunder on Monday saw the group mistakenly publish an incomplete statement about increasing electricity tariffs on its website.
The average annual dual-fuel bill for a typical household on a standard tariff will rise by £76 to £1,120, a 7.3 per cent increase.
However, gas prices will be held at their current level.
Centrica-owned British Gas said the price rise is its first since November 2013 and the group pledged to help protect more than 200,000 vulnerable customers from the increase.
Centrica Consumer chief executive Mark Hodges said: "We held off increasing prices for many months longer than most suppliers in order to protect our customers from rising costs, so it is a difficult decision to have to announce an increase in electricity prices.
GETTYBritish Gas is the biggest energy supplier in the country
"This rise reflects an underlying