British Gas

Customers of the big six energy suppliers are paying up to £234 a year too much for their gas and electricity bills, a competition probe has found. But MoneySavingExpert.com has been saying for years that households could save hundreds by switching.

Northern Ireland's main electricity supplier has cut bills by nearly a tenth for all households after falls in wholesale gas prices.

Ovo Energy has today announced it's cutting gas prices by 10.4%, which is more than double the recent price cuts revealed by the big six energy providers. But households can still save more by switching.

EDF Energy has today become the last of the big six energy providers to announce a gas price cut this year, but prices will only fall by a tiny 1.3% and not until 11 February.

SSE has today become the fifth of the big six energy providers to announce a gas price cut this year, but the 4.1% drop won't take effect until 30 April.

Npower has today become the fourth energy provider to announce price cuts this year, but the drop doesn't take effect until 16 February and the 5.1% reduction only applies to gas.

Energy firm SSE is to be investigated by Ofgem over concerns it restricted competition in the electricity connections market.

British Gas has become the second Big Six energy provider to announce price cuts this year, but the drop doesn't take effect until 27 February and the 5% reduction only applies to gas.

Customers of electricity provider iSupplyEnergy will no longer be blocked from switching if they don't tell it they're moving elsewhere, following concerns flagged by both customers and MoneySavingExpert.com.

British Gas has been ordered to pay £11.1 million to charity after an Ofgem investigation found it failed to deliver energy efficiency measures to low-income households by a given deadline.