About Npower

Npower is a wholly owned subsidiary of RWE Group, a German company. RWE Npower is one of the largest suppliers of gas and electricity to homes and businesses in the UK, with around 3.5 million customers. It also produces around 10% of the electricity used in the UK.

Npower was created when it combined the former electricity and gas supply business of MEB, Calortex, MEB Powerline, National Power Energy Direct and Independent Energy, Yorkshire Electricity and Northern Electric and Gas.

Could you save by switching to Npower? Compare energy prices now.

Npower customer satisfaction survey results

Area of performance Star rating
Which? customer score
31%
Customer service
Value for money
Bills
Complaints
Helping you save energy

Npower customer score

In October and November 2013 we surveyed 8,525 UK adults, who pay for their household energy, about their experience with their gas and electricity suppliers. For Npower, we received 892 responses.

Customer scores are based on overall satisfaction and likelihood of recommending to a friend. This survey is the largest one of its kind conducted in the UK.

For a full round-up of the Which? Switch energy satisfaction survey results, see our customer satisfaction survey results page.

Npower fuel mix disclosure

All energy suppliers have to provide information about the mix of fuels they use to generate energy supplied to gas and electricity customers and its environmental impact.

Npower fuel mix

Coal: 33.6%
Natural gas: 51%
Nuclear: 0.4%
Renewable*: 14%
Other: 1%
* Wind, hydro and solar power.

Current tariffs

Placeholder text

Contact Information

Customer service for existing customers - 0800 316 3375

Phone calls: Calling Npower on a 0800 number is normally free when you call from a land-line but charges may vary if you use a mobile.

Contact Which? Switch by phone

You can call us on 0800 410 1149 or 01259 220 235.

Compare and switch suppliers

Choose the fuel type to compare:

Gas and Electricity Electricity only Gas only
Get started

Energy Customer Satisfaction Results

Tired of poor customer service from your energy supplier? See how customers rated 20 of the UK's gas and electricity suppliers in 2014.

Latest tariff updates

Tariff updates are provided by Energylinx. Energylinx is fully accredited to the Confidence Code to compare energy for domestic consumers.

About Which? Switch

Which? Switch provides consumers with a transparent and impartial way to compare energy tariffs and find the best gas and electricity provider for your needs.

Compare and switch supplier now