enercity builds Hanover’s largest photovoltaic plant for own consumption


On the hall roofs of the Hanover-based company TROESTER, enercity is currently completing Hanover’s largest photovoltaic system for self-consumption. With a total output of 940 kilowatts peak (kWp), this is enercity’s next large-scale PV project in the region. Just in March, the energy service provider announced the construction of a 600 kWp plant on the roof of a Hanover furniture store. enercity’s goal is to work with its customers to increase electricity generation from solar power and reduce dependence on fossil fuels.

Boost for energy transition and energy security of the company

TROESTER, a manufacturer of machinery and equipment for rubber and plastics processing, recently commissioned enercity to install the PV system at its headquarters and production site in Hannover-Wülfel. By the time the plant is scheduled to go into operation in summer 2022, enercity will occupy two of TROESTER’s hall roofs with a total of more than 2,300 PV modules covering 4,000 square meters. “We are looking forward to the plant, which will provide a significant boost to the energy transition in the state capital and the energy security of our company,” said Bernd Pielsticker, Managing Director of TROESTER GmbH & Co. KG.

Annual saving of 250 tons of carbon dioxide

“The partnership-based project shows how we accompany our customers on their way to a climate-neutral future. Lasting business relationships focused on sustainability lead first and foremost to greater efficiency. This in turn creates tangible added value for TROESTER, our environment, our society and our company,” says enercity CEO Dr. Susanna Zapreva. TROESTER will save more than 250 tons of CO2 annually through the PV installation and also cushion any rising electricity purchase costs. For the calculated minimum term of 25 years, the electricity generation costs for the self-consumed portion can thus be calculated in as a fixed amount. Due to its size, the system will produce solar power for less than 9 cents per kilowatt hour. The structure is designed as a self-consumption system. Electricity not required by the plant itself will be purchased from enercity. At the same time, enercity will provide TROESTER with additional services such as direct marketing of the feed-in on the electricity exchange as well as maintenance, servicing and operational management. In addition, enercity takes care of the certificates of origin from the surplus feed-in of the plant. More information at: