Npower

Sainsbury's has today relaunched its energy offering, after partnering with big six firm Npower.

Npower has become the third big six supplier to increase its energy prices to the maximum allowed under the new cap on standard variable tariffs (SVTs) – hitting customers with an average 10.3% price rise from Monday 1 April. 

Npower and SSE, two of the big six energy firms, will no longer go ahead with their planned merger.

The competition watchdog has approved the proposed merger between big six energy companies Npower and SSE, following a review.

Npower has become the latest big six energy firm to announce a price hike, with a million customers on its standard variable tariff to see bills rise by an average 5.3% from Sunday 17 June.

From today all energy firms are banned from back-billing customers beyond 12 months if the delay is not their fault - here's what you need to know.

All energy firms will be banned from back-billing customers beyond 12 months under stricter new rules.

The roll-out of next generation smart meters which allow you to switch energy provider without losing their smart features is likely to be delayed, after the Government announced energy firms will be allowed to keep installing first-generation smart meters for an extra three months .

Npower is running a trial that could see an end to its standard variable tariff – for the first time it's moving some customers onto another fixed deal at the end of their current contract. But most could still save by switching.

Three out of five households are still paying an average £300 more than they need to for their energy despite near-record switching rates this year.