Households in Brighton and Hove will pay four tenths more to heat their homes than they did before the energy crisis.
It comes as the energy price cap rose by ten per cent on October 1.
Department for Energy Security and Net Zero data shows the average household in Brighton and Hove used 2,265 kilowatt-hours (kWh) of electricity and 8,486 kWh of gas to fuel their homes in 2022.
One kWh would run an average oven for around 30 minutes, while the median has been used to exclude extreme values which could skew the average.
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Based on the new energy price cap costs introduced on October 1, a Brighton and Hove household will pay around £1,423 per year on energy.
This is down from approximately £1,492 based on the energy price cap set in October 2023, but is roughly 42 per cent higher than what a household would expect to pay based on the energy price cap in October 2021, before the cost-of-living crisis.
The price rise comes as the Labour government removes the winter fuel allowance for around ten million pensioners this year.
The Conservatives and Green Party have called on the government to make a U-turn and provide payments for all pensioners this winter.
Shadow energy secretary Claire Coutinho accused Labour of not being honest about its plans, adding: "Instead of prioritising cheap energy, the new Labour government is pursuing Ed Miliband's reckless net zero targets with no thoughts to the costs.
"And far from their promise of saving families £300 off their energy bills, one of their first acts in office is to remove the winter fuel payment from 10 million pensioners this winter."
Mr Miliband said the price cap rise was due to the "failed energy policy" his government inherited, which he claims has left the country "at the mercy of international gas markets controlled by dictators".
"The only solution to get bills down and greater energy independence is the government’s mission for clean, homegrown power,” he said.
“That’s why we have hit the ground running, lifting the onshore wind ban, consenting unprecedented amounts of solar power and setting the largest-ever budget for our renewables auction.
"We will also do everything in our power to protect billpayers, including by reforming the regulator to make it a strong consumer champion, working to make standing charges fairer, and a proper Warm Homes Plan to save families money."
Andy Manning, head of energy policy at Citizens Advice, said: "With record levels of energy debt, the removal of previous support and changes to the eligibility of the winter fuel payment, people are in desperate need.
"The government must urgently introduce a targeted bill support that reflects the realities of people’s energy needs."
Simon Francis, co-ordinator of the End Fuel Poverty Coalition, welcomed the government's commitment to improving home efficiency and energy security to stabilise price changes, but admitted they will take time and will not support those in need this winter.
"The energy industry has made more than £457 billion in profit since the start of the crisis, so there is plenty of money in the system to be able to ensure everyone stays warm this winter and next."
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