Gas and electricity bills are unlikely to return to pre-pandemic levels, according to the boss of a Norwegian energy giant.
Anders Opedal, chief executive of Equinor, said the transition away from fossil fuels to more sustainable sources of energy will mean costs remain high.
Mr Opedal also said that windfall taxes on gas and energy companies were affecting investment in the UK.
Meanwhile, the former boss of BP has said energy costs will stay high for the next decade because of massive underinvestment in oil and gas in the wake of new climate change targets.
Writing in the Telegraph, Tony Hayward said people should "not be fooled" by a recent decline in wholesale oil and gas prices, warning: "High energy costs are going to be a feature of the next decade.
In October, the energy price cap surged to £3,549 following months of high prices, up from £1,977 previously, although household bills have been eased by the Government's £2,500 energy price guarantee, which rises to £3,000 from April.
Speaking about the switch to renewables, Mr Opedal told the BBC: "This will require a lot of investment and these investments need to be paid for, so I would assume that the energy bills may be slightly higher than in the past but not as volatile and high we have today."
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