ewl energie wasser luzern is a modern service company based in the city of Lucerne and active in central Switzerland. The ecologically and economically sustainable offerings include electricity, natural gas, heat, water, telecommunications, energy services and electrical installations.
ewl is developing a pioneering project to supply the communities of Horw and Kriens with energy from the lake. Water from the Horwer Bay of Lake Lucerne is used to heat buildings sustainably or to cool them if required. This is made possible by the use of a proven technology with which the lake water is extracted from a depth of around 40 metres and transported to the energy centre by a water pump. There, a heat exchanger transfers the energy to a separate pipe network. The water, which has cooled down by 3 degrees, then flows back into the lake. The energy is produced locally and the added value remains in the region.
Overall project manager