Npower (stylized as npower) is a UK-based electricity and natural gas supply company that was formerly known as Innogy plc. As Innogy plc, it was listed on the London Stock Exchange and was part of the FTSE 100 Index, but is now owned by RWE from Germany. The company was established as Innogy plc from the UK operations of National Power when the overseas businesses were spun off into International Power plc in 2000. It then acquired the Regional Electricity Company, Yorkshire Electricity, in 2001. Later, it sold the distribution side of Yorkshire Electricity to CE Electric UK in exchange for the supply business of Northern Electric. Innogy was taken over by the German utility giant RWE in 2002 and was renamed RWE Npower plc, with the entire supply business adopting the "Npower" brand.