Britain's big six energy companies have come under pressure from the regulator and consumer groups to cut household gas and electricity bills following a sharp drop in wholesale costs.
The regulator Ofgem said that at the start of this month gas prices for next day delivery reached their lowest level since September 2010 and were 38% below this time last year. Prices for electricity reached their lowest level since April 2010, and are currently 23% lower than June 2013.
Despite that, the regulator said that the suppliers – SSE, EDF Energy, Scottish Power, E.ON, npower