Newly proclaimed U.K. Prime Minister Liz Truss will present a hundred-billion-pound plan to assist Britons in paying their energy bills on Thursday.

The policy announcement is likely to keep the price of energy at its current level or at £2,500 ($2,870). As things stand now, when the cap goes into effect next month, the average annual energy bill will go from £1,971 ($2,264.85) to £3,549 ($4,078.10).

Truss, during her first speech as prime minister, announced Tuesday that she would "deal with the energy crisis" that Russian President Vladimir Putin’s war has caused. She vowed to take steps to address energy costs and guarantee the energy supply for the future.

"We will take action immediately to help people and businesses with bills but also ...to tackle the root cause of these problems so that we are not in this position again," Truss said in a statement, per Reuters. "We will set out our plans to deliver on that promise and build a prosperous Britain for everyone."

For starters, more than 170,000 Britons want to withhold their energy bill payments on October 1 in protest of the raised energy price ceiling.

End Fuel Poverty Coalition claimed the number of individuals in fuel poverty in the United Kingdom, defined as being unable to effectively heat a home, would reach 12 million families (42%) this winter if financial assistance is not provided.

Reports suggested that the imminent package that Truss would announce is somewhat similar to the plan that the opposition Labour Party proposed in August. The main difference is that Labour had proposed paying for the transition with a windfall tax on oil and gas corporations, which Truss has rejected.

"I am against a windfall tax," Truss stated to the House of Commons during her first questioning session with fellow lawmakers on Wednesday. "I believe it is the wrong thing to be putting companies off investing in the United Kingdom just as we need to be growing the economy," the new prime minister furthered.

The Guardian reported that the new British prime minister, in her inaugural statement on Tuesday evening, outlined three primary objectives, one of which was to grow the economy through "tax reduction and reform." Others are addressing the energy issue and enhancing the National Health Service.

Christopher Dembik, head of macro analysis at Saxo Bank, told CNBC that the new energy plan would presumably be financed by extra government borrowing. However, the repercussions of the financial assistance might be felt for decades.