Acea SpA operates as a holding company, which manages and develops water and electricity networks and environmental services. It operates through the following segments: Environment, Energy, Water, and Networks. The Environment segment deals with urban management and develops investments in the waste to energy business. The Energy segment operates as a duel fuel operator through the provision of solutions for the supply of electrical energy and natural gas. The Water segment offers integrated water services throughout Italy with the sustainable management of water resources and respect for the environment. The Networks segment manages the distribution network of electricity and the public and artistic lighting of Rome as well as engages in other energy efficiency projects. The company was founded in 1909 and is headquartered in Rome, Italy.