E.ON Energie's power stations in Germany and abroad generate electricity and, in some cases, district heating, and have a total installed capacity of some 27,000 megawatts (MW).

E.ON Energie's German nuclear subsidiary, E.ON Kernkraft, owns / co-owns 12 reactors in Germany's Bavaria, Lower Saxony, and Schleswig-Holstein regions. With a net installed capacity of about 8,473 MW, E.ON Kernkraft is one of Europe's largest privately owned nuclear energy providers. E.ON Energie's conventional electric generation comes primarily from hard coal and lignite, but the company also has gas and coal-fired power stations. Its German conventional-generation subsidiary E.ON Kraftwerke and its Netherlands-based subsidiary E.ON Benelux operate a generation fleet with a combined installed capacity of 16,000 MW. Hydropower is E.ON Energie's leading source of renewable energy. With an installed capacity of about 3,000 MW, its German hydropower subsidiary E.ON Wasserkraft ranks as Germany's biggest generator of renewable energy.