RWE AG is a holding company, which engages in the generation, transmission, distribution, and trading of electricity and gas. It operates through the following segments: Conventional Power Generation; Trading/Gas Midstream; and innogy. The Conventional Power Generation segment consists of electricity generation operations and lignite mining business. The Trading/Gas Midstream segment trades energy commodities, marketing, and hedging the electricity business, and as well as running the gas midstream business. The innogy segment focuses on renewables, grids and retail, innogy plans, builds and operates facilities for the generation of electricity from renewable sources, mainly wind and hydroelectric power. The company was founded in 1898 and is headquartered in Essen, Germany.