Enercity has begun constructing a 30 MW wastewater-based heat pump in Hanover as part of its shift away from coal-based district heating, replacing capacity from the Stöcken coal plant alongside biomass, power-to-heat, and waste-heat systems.
Hanover-based utility Enercity AG has begun construction on a major heat pump project as it moves away from coal-based district heating.
The company, which currently still relies heavily on the Stöcken coal-fired power plant for heat supply, has already shut down the first of its generating units, with the second scheduled to follow in spring 2028.
The retired capacity will be replaced by a mix of biomass and power-to-heat plants, expanded heat recovery from a waste incineration facility, and a series of large-scale heat pumps. The latest addition is a 30 MW heat pump being built at Hanover’s central wastewater treatment plant in the Herrenhausen district.

