Utility giant and its residential arm British Gas likely to face criticism for £1.3bn half-year profits with price rise imminent Britain’s largest energy supplier, Centrica, faced more public outrage today after reporting £1.3bn in its half-year profits – including £270m for its residential arm British Gas – just weeks after announcing a price hike . But Centrica said adjusted operating profits at British Gas for the six months to 30 June fell by 54% compared with the same period last year, as it battled with a 30% increase in wholesale gas prices and lower consumption. Centrica, which also operates an upstream gas exploration business and a US residential arm, posted a 19% decline in adjusted operating profits from £1.6bn in the same period last year. British Gas plans to lift gas and electricity prices by an average of 18% and 16% respectively from 18 August . Some 9 million customers will be hit when British Gas raises the average dual fuel bill by £190 a year to £1,219, pushing the average monthly bill to £101.58. The price rise comes at a time when household incomes are becoming increasingly squeezed by high inflation and muted wage growth. But Centrica said British Gas saw an 18% year-on-year decline in gas usage in the period, as well as a 3% drop in electricity consumption. The FTSE 100-listed company said British Gas profits were made in the first quarter of the year – with energy being sold at a loss since April. Centrica said without the pending price rise in August, it would make a loss in the second half of the year. However, British Gas did record an increase in customers in the period – up 159,000 to 16.1 million accounts. The upstream gas operations, which include assets in the North Sea and Trinidad and Tobago, saw profits increase 14% to £414m. Centrica Utilities Gas Commodities Energy industry Household bills Consumer affairs guardian.co.uk