Npower, formally known as RWE npower plc, is a UK based gas supply generation company.
The Company was established as Innogy plc from the UK operations of National Power when the overseas operations were demerged as International Power public limited company in 2000.
Innogy then went on to purchase the Regional Electricity company Yorkshire Electricity in 2001. It later disposed of the distribution side of Yorkshire Electricity to CE Elecrtic UK in exchange for the supply business of Northen Electric. Innogy was taken over by the German utility giant RWE in 2002 and renamed RWE Npower plc with all the supply business adopting the "Npower" brand.
In February 2006, Npower acquired 19% of Telecom Plus, a business which now provides Npower with management services, such as billing, customer service, metering, debt collection and administration: under the deal Npower can increase its stake in Telecom Plus up to 29%.
In 2010, npower acquired SPI Group to add to its energy services business npower hometeam. SPI provides services to the social housing market and its commercial arm serves public buildings, including schools.