Alex Neill, Which? Managing Director of Home Products and Services, said:
“It is clear that millions of hard pressed energy customers are still suffering due to a lack of competition in the energy market.
“Measures that significantly reduce the cost of your bills overnight will be welcomed, but this cannot result in an increase in bills overall, undermine improvements in service or bring much needed innovation to a halt.
“Tackling this broken market so that it works for everyone must be the priority for the next Government.”