Consumers are being warned they face higher energy bills as the UK becomes more reliant on energy imports. The warning comes from Ofgem chief executive Alistair Buchanan, who says falls in the UK’s power production capacity are likely to lead to more energy imports and price rises. The energy watchdog predicts power station closures could mean a 10% fall in capacity by April alone. Mr Buchanan has said the UK needs more gas supplies to fill the shortfall. His warning comes as older power stations close and renewable energy is still growing.