The Department of Energy and Climate Change said it is up to the energy companies to justify their profits.
A departmental spokesman said: "Profits are a matter for energy companies to justify to their customers and shareholders, but profits are needed if they are to continue to invest in Britain's energy security and infrastructure".
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Consumer prices have rocketed by 58% since 2003, with the UK industry paying the biggest bills in Europe.
Friday will be a much calmer day for many, with the weather set to remain dryer with sunny periods and much lighter winds than on Thursday.
Teachers and managers in particularly are putting in hundreds of hours of overtime free of charge.