Wien Energie GmbH is the energy utility for Vienna and the surrounding region, and Austria’s largest regional energy provider. Headquartered in Vienna and part of the city-owned Wiener Stadtwerke Group, it generates, procures, and supplies electricity, natural gas, district heating, and district cooling. The company operates a diversified portfolio across thermal and renewable technologies— including combined heat and power and waste-to-energy plants alongside wind, solar, and biomass— and manages extensive power and heat networks.
Serving residential, commercial, and industrial customers, Wien Energie provides power, process heat/steam, and energy services that support continuous operations in sectors such as manufacturing and chemicals in eastern Austria. Its activities focus on reliable supply, energy efficiency, and the gradual decarbonization of heat and heat networks in the Vienna metropolitan area.