Trondheim Energi, formerly Trondheim Energiverk, is a Trondheim, Norway-based power company and a subsidiary of Statkraft. The company owns the power grid and district heating in Trondheim and Klæbu as well as fourteen hydroelectric power plants in Nea and Nidelva as well as five partially owned power plants in the Orkla Valley.Total production of electricity was 2,865 GWh in 2006, while district heating was 451 GWh.