National Energy Action has called on Ofgem to ensure that cheap energy is safeguarded for vulnerable households.
The campaign group stressed that urgent action must be taken to reduce the cost of energy to make sure that poorer households are not driven further into fuel poverty by overpricing.
Lesley Tudor-Snodin, a spokesperson for National Energy Action, said the price of cheap energy is expected to rise to cover the costs of new infrastructure and households who have already had to contend with rising gas prices may be faced with even higher bills from their energy suppliers.
"Households on the lowest incomes will now be wondering why the energy suppliers' profits have increased so much this year, especially when the price of wholesale energy continues to fall," she said.
British Gas, the largest of all residential energy suppliers in Britain, recently announced that it has cut its standard gas prices by an average of seven per cent, a move which is expected to benefit some eight million households around the country.
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