Centrica is to announce another jump in annual profits, months after an increase in customer bills.
Trading under the name British Gas, the City is predicting profits of nearly £600 million, up from around £550 million in 2011.
At the end of last year, Centrica increased tariffs by 6 per cent for around 8.5 million households.
The company pre-empted any backlash at the weekend by publishing a report about its positive impact on the British economy.
More top news
A cheap over-the-counter painkiller taken by millions of people in Britain every day could have the hidden benefit of slowing down ageing.
Some four million Brits are expected to fly out of the UK over the festive period, along with many more using roads and railways.
Scientists believe they may have found the key to fighting HIV - and it rests in the immune system of llamas.