Npower to raise gas and electric bills for one million customers

The average 5.3% dual fuel price hike comes into effect on June 17 and follows earlier rises announced last month by its "Big Six" rivals.

British Gas is increasing prices by 5.5% from May 29, while Scottish Power is raising prices by 5.5% on June 1.

Npower blamed increases wholesale energy costs and government policy changes for the rise.

The 5.3% average price hike is made up of a 4.4% rise in gas prices and a 6.2% increase in electricity.

It will see a typical dual fuel gas and electricity annual bill climb to £1,230.