The former energy business portion of Evonik was operated through Evonik Steag GmbH (formerly STEAG), which is the fifth largest power company in Germany, based in Essen.
Mantan bagian bisnis energi Evonik beroperasi melalui Evonik Steag GmbH (sebelumnya STEAG), yang merupakan perusahaan listrik terbesar kelima di Jerman, yang berbasis di Essen.