The reductions, which are expected to affect consumers in the south of England, Scotland and Wales follow price increases of 25 per cent in 2008.
Eva Eisenschimmel, head of brand performance at EDF Energy, said: "In this time of extremely volatile energy markets, EDF Energy continues to ensure very competitive prices for our customers."
She added that in 2008 French-owned EDF Energy increased its prices by less than other major electricity suppliers.
Meanwhile, EDF Energy has welcomed the government's announcement that it is close to finalising an investment framework for nuclear power investment.
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