Company Dravske elektrarne Maribor, d. o. o. (DEM)
is the leading company in the field of efficient use of renewable energy sources in Slovenia, focusing on development to provide quality energy in an environmentally friendly manner, with the goal of economic performance and consistent sustainable development of the environment and the market in which it operates. With eight large hydroelectric power plants on the Drava River, five small hydroelectric power plants and five solar power plants, DEM produces almost a quarter of all Slovenian electricity.