Many people may wish to switch energy tariff to find a better gas deal if they have been affected by rising prices this year.
Figures from the Department for Energy and Climate Change revealed the average dual fuel customer can expect to pay an extra £100 in gas and electricity bills in 2011 for the same level of consumption as in 2010.
It was stated hikes in the cost of wholesale gas have been the main driver for this, with pressures on supply emerging from the instability in the Middle East as a result of the Arab Spring.
The Fukushima disaster in Japan also led to a higher demand for fossil fuels as uncertainties were raised over the safety of nuclear power.
A spokesman for Consumer Focus warned the impact of the latest round of price increases will have a serious effect on many homes.
"Affording these bills will be a major worry for many people this winter," he said.
However, earlier this week Co-operative Energy became the first supplier to drop its prices, which it stated was in response to a recent fall in wholesale costs.
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