E.ON SE operates as an energy company in Germany, the United Kingdom, Sweden, the Netherlands, rest of Europe, and internationally. It operates through Energy Networks, Energy Infrastructure Solutions, and Energy Retail segments. The Energy Networks segment operates power and gas distribution networks; and offers maintenance, repair, and related services for its power and gas networks. Its Energy Infrastructure Solutions provides integrated and sustainable energy solutions for cities, municipalities, and industrial and commercial customers comprising district heating and cooling; heat, steam, and power generation services; embedded solutions; products and services that enhance energy efficiency; and software-based applications. This segment also installs smart energy meters, block-type thermal power stations, photovoltaic systems, air-conditioning systems, and heat pumps. Its Energy Retail segment distributes power and gas; installs customer connections and connects renewable energy generating stations to the grid; and offers a range of green power and green gas tariffs, and sustainable solutions that enhance energy efficiency for residential, small and medium-sized enterprises, large commercial and industrial, and sales partners. The company also provides customers digital solutions; biogas and biomethane products; and compressed natural gas refueling services, as well as installs solar and battery storage systems, heating systems, and electric vehicle charging points. E.ON SE was founded in 1923 and is headquartered in Essen, Germany.