On Sunday Centrica sought to deflect flak over another jump in annual profits by flagging up its importance to the UK economy.
Chief executive Sam Laidlaw said its contribution to GDP was equivalent to a city the size of Manchester, and its tax bill amounted to £158 for every UK household.
Centrica published the findings of its specially commissioned report ahead of an expected double-digit rise in profits after increasing bills by 6% for around 8.5 million households at the end of last year.
Mr Laidlaw said: "At a time of uncertain economic prospects, our activities across the UK are even more important to secure employment, put the supply chain to work and contribute our fair share of tax."
British Gas parent Centrica will stoke public anger over energy firm profits tomorrow when it reveals another jump in annual profits just months after hiking customer bills.
The City is predicting the group's British Gas residential arm will deliver profits of £598 million, up from £544 million in 2011 after last year's colder-than-normal weather provided a boost.
Its results come amid mounting questions over the fairness of energy prices after British Gas increased tariffs by 6% for around 8.5 million households at the end of last year.
Centrica has already sought to head off consumer backlash by flagging up its importance to the UK economy after publishing a report at the weekend claiming it contributes more than £14 billion through taxes, job creation and contracts with small suppliers.