E.ON says it will not increase its gas and electricity prices for residential consumers in 2012.
The Big Six energy provider has about five million domestic customers and claims it is committed to giving them the best deals.
It also wants its prices to be transparent and as fair as possible.
This announcement comes despite the company revealing it made a profit of less than two per cent last year.
Chief executive of E.ON UK Dr Tony Cocker says the provider is committed to cutting prices, even though wholesale energy costs will probably rise over the next few years.
Mr Cocker stated: "Earlier this year we cut our prices in a way that helped some 75 per cent of our customers and I hope that the certainty we've given today will show our customers again that we are committed to helping them."
Back in January, E.ON cut its electricity prices by six per cent to save people £31 on their annual energy bill.
It also launched its Reset Review, which aims to improve the company's relationship with its customers by changing things like tariffs, bills and payment options.
E.ON is helping people fit smart meters into their homes to accurately monitor how much energy they use, as well as insulating properties up and down the country.
It says this commitment helps people plan for the future and control their spending.
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