March ending will see another prominent energy supplier Scottish Power curbing its gas bills to about 8%, making it last in the row of suppliers cutting the bills this year. Scottish Power claims that 1.6 million domestic gas users will be benefited from the offer an annual saving of £66 will be possible on the bills along with 60,000 customers using electricity will be discounted.

On the other hand, EDF Energy on Wednesday opted for the second cut in six months by announcing a reduction of 4% in the residential gas prices.

All these decisions of cost cuts, which have been taken in the year earlier, came following a wave of annoyance by the customers who questioned the supplier for not reducing the bills in spite of a sharp the decline in the wholesale oil and gas prices from February 2009.

Scottish Power's director of energy retail, Raymond Jack, said: "Typically, less than 60% of a bill is now based on wholesale costs”.

He further said that there was a need of having sufficient supplies as the customer should be shielded from the varying spot market prices.