npower supplies gas and electricity to around 3.1 million customers in the UK.
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npower, originally established as National Power in 1990 following the privatisation of the state-owned Central Electricity Generating Board, is now owned by RWE Group which incorporates Germany’s leading gas and electricity companies.
npower supplies gas and electricity to around 3.1 million customers and produces around 10% of the electricity used in the UK.The big six supplier also offers boiler services, including boiler repair and replacement.
The supplier is also one of just a few companies to have earned the Carbon Trust Award for sustainable management of energy, water and waste.
npower was rated three stars out of five by customers in the 2018 survey of UK households. The big six supplier earned its rating based on marks for value for money, transfer process and customer service.
In May 2018, npower announced a price rise of 5.3% on average for dual fuel customers on its standard variable rate tariff.
The increase would mean a hike of £64 per year on average for around 1 million of its customers.
The table below shows which of the big six energy suppliers, including npower, last raised or dropped their prices, by how much and when:
|Supplier||Date effective||Avg price change (%)|
|7 June 2018|| |
|20 August 2018|| |
|29 May 2018|| |
|1 June 2018|| |
|11 July 2018|| |
|17 June 2018|| |
*Based on a medium energy user on a standard dual fuel tariff, paying on receipt of bill, with bill sizes averaged across all regions.
**Includes removal of discounts as well as price rise where applicable.
In February 2017, npower announced it would raise prices by 9.8%, effective 16 March 2017.
In January of 2015, npower stated that it would lower prices for standard tariff customers by 5.1%. The price drop would be implemented 16 February.
In October 2013, npower announced it would raise its prices by 10.4% on average for gas and electricity. npower rates increased on 1 December 2013 and hiked the average dual-fuel customer's bills by £139 per year.
In January 2014, npower announced its price rise reduction prompted by government's cuts to green levies. The big six supplier stated it would reduce the rise by about 2.6%, and that this cut would be effective 28 February 2014. That made npower tariffs' overall price rise roughly 7.8%, the highest of the big six for the 2013-2014 price rise season.
Read more about npower's price change history.
npower is part of the Accurate Bills Code of Practice, created by the industry trade group Energy UK, committing it to producing clearer bills that are easier for customers to understand.
npower's parent company, the RWE Group, is one of the five largest gas and electricity companies in Europe, and has over 16 million electricity customers and 8 million gas customers.
RWE npower renewables is one of the biggest wind-power and hydroelectric generators.
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