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Wednesday 11 February 2026 3:01 pm  |  Updated:  Wednesday 11 February 2026 6:49 pm

British Gas boss: Electricity bills to top Ukraine war heights

By: Chris Dorrell

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Centrica is the UK's largest listed energy provider (Photo by Leon Neal/Getty Images)
Centrica is the UK's largest listed energy provider (Photo by Leon Neal/Getty Images)

Electricity bills will be higher in 2030 than in the wake of the Russian invasion of Ukraine, the boss of British Gas has warned, as the government pushes through major upgrades to the UK’s grid infrastructure.

Chris O’Shea, chief executive of British Gas-owner Centrica, said the UK was playing catch-up after years of underinvestment, and now faced significantly higher costs. 

“We’ve underinvested in the system for many years, and whether it’s the cost of building a new gas-fired power station or a new wind farm, the costs have gone up,” he said at an event hosted by the Energy Institute. 

“Our projections show that the UK energy system will be one where, by 2030, the electricity price will be higher than it was at the peak of the Russian invasion of Ukraine,” he added. 

O’Shea said two-thirds of the costs would be on “system costs” while the remaining third would be wholesale costs. 

“Those system costs aren’t net zero costs,” he said. “They are addressing years and years of underinvestment and whether we went for net zero or new fossil fuels, we would need to incur those system costs.”

Electricity bills to rise for grid upgrades

His comments highlight the challenges facing the government in bringing down the cost of electricity bills while also upgrading the UK’s outdated grid infrastructure. 

Last year Britain’s network companies were given the green light to spend £28bn on upgrading the gas and electricity grids, forming the first part of a wider investment pipeline which could cost around £90bn if approved. 

The investment will go towards new pylons and cables to connect with wind farms being constructed around the British coastline. It will primarily be funded through higher network charges on household energy bills. 

Ofgem estimates that this will add £108 a year to bills by 2031, threatening energy secretary Ed Miliband’s pledge to bring down average energy bills by around £300 before the end of the decade. 

Claire Coutinho, shadow energy secretary said. “If gas went to zero, bills would still rise because Ed Miliband is building a system that is incredibly expensive. Despite having an undeniably radical policy, he has never forecast the impact of his plans on your bills.”

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Upgrading the grid risks ending up like HS2

Electricity grid infrastructure with high-voltage power lines and pylons under a clear sky, representing energy distribution.

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