Who are Npower?

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A Big Six supplier, learn more about Npower's tariffs and contact details


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Npower is part of the German RWE group, one of Europe's largest gas and electricity providers. It supplies energy to around 10% of the UK's population and is one of the 'Big 6' UK energy suppliers.

Npower also provides boiler installation and maintenance, as well as ‘Nest’ smart energy meters.

What tariffs does Npower offer?

Tariff name

Tariff type*

Average bill value**

Exit fees***

Fixed Energy Online August 2018.

Dual Fuel – Fixed



Standard Prepay


Prepayment – Variable



Cleaner Energy Fix October 2019

Dual Fuel – Fixed



Super Fix March 2021


Dual Fuel – Variable





Dual Fuel – Fixed



Tariff information correct as of 14th August 2017

*The range of gas and electricity tariffs includes standard variable rate, fixed rate, ‘green’ and prepayment deals. Click here to find out why we think fixed rate tariffs are worth checking out.

** The average bill is an average price of all 14 energy regions using the Ofgem medium usage of 3100kwh of electricity and 12500kwh of Gas, dual fuel and paying by monthly direct debit.

*** Exit fees are payable when you switch your energy provider before the end of your fixed term contract. Fees vary between £25 - 35 per fuel.

How can I contact Npower?

Telephone:  0800 073 3000 or 0330 100 3000 from mobiles. Lines are open from 8am to 8pm Monday to Friday and 8am to 6pm on Saturday.

Or Facebook or Twitter.

What do I need to do if I want to change my current provider?

Changing your energy provider has never been easier. It only takes minutes to run a quote on our site, and within 17 days you could be up and running with your new supplier. Click here to run a price comparison.

Our video guide below explains how hassle-free the switching process is.

What happens if my energy supplier goes bust?

It is very rare for an energy supplier to go out of business, but it happened in 2016, with the collapse of GB Energy.

As happened then, any future collapse and its consequences would be managed by Ofgem, the energy market regulator. Thanks to Ofgem’s safety net, even if your supplier goes out of business, your gas and/or electricity supply will never be cut off or interrupted.

All UK energy suppliers are regulated by Ofgem.

In addition to guaranteeing continuity of supply, Ofgem works to move customers of a failed company to the best possible deal, with any debit/credit transferred to a new supplier that is chosen to inherit the business.

Read our Q&A on this topic here.

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