MILLIONS of households could see their energy bills rise by around £109 a year from April if they remain on price-capped tariffs, Uswitch has warned.

The comparison website said that the energy costs of 26 million households on default tariffs would increase by an average of 6 per cent, reaching £1,847 in the new fiscal year, with a further £35 rise predicted in July.

The April 1 energy price cap is now predicted to increase by more than previously expected after wholesale prices hit a 15-month high.

Uswitch.com is urging households to act quickly to secure a fixed deal at or below the current price cap to protect themselves from further price rises in the coming months.

End Fuel Poverty Coalition co-ordinator Simon Francis said: “As volatile energy bills continue to be set by our reliance on global wholesale markets and driven by the cost of gas, it is even more vital that we see moves toward sustainable, cheaper, renewable energy.

“This, of course, needs to be combined with investment in helping people make their homes more energy efficient, especially those living in low-quality private rented homes.

“But until then, consumers need to navigate a confusing array of energy tariffs.

“The key point to remember is to use your own energy usage when comparing prices and do not rely on industry averages, which may hide the true cost you will pay.”

Mr Francis said customers must also check for exit fees, “which may trap you into uncompetitive tariffs in the future.”

He added: “And if a household is interested in moving to a ‘tracker’-style tariff, it is even more important to make sure you look at your own usage, the unit costs and the standing charges and check that they will offer you real value for money.”