The Price Cap moves every three months and the April to June Cap's now predicted by British Gas, E.On & EDF to rise 5 per cent to 7 per cent.
The Money Saving Expert service gives its rule of thumb: “If you find a fix for up to 4 per cent more than the current (Jan to Mar) Price Cap, it's predicted you'll save over the year compared with staying on the Price Cap.”.
Energy bills tend to rise or fall every three months, when Ofgem sets its energy price cap.
As many as 80 per cent of UK households are already overpaying for energy, Mr Lewis adds, because they are paying at the price cap when they could be paying lower.
The money expert says the energy price cap is likely to rise even more than previously expected, so bill payers should act soon to make much-needed savings.
