Wunsiedel Municipal Utilities Joins SE-Trade
Through its stake in SE-Trade, Stadtwerke Wunsiedel aims to efficiently organize the trading, marketing, and settlement processes for its planned regional utility.
September 15, 2026
Source: E & M powernews
Stadtwerke Wunsiedel is investing in the energy trading company SE-Trade through its subsidiary Zenergie GmbH.
Stadtwerke Wunsiedel (SWW) in Bavaria is expanding its regional energy supply business. Through its subsidiary Zenergie, it is acquiring a stake in SE-Trade GmbH. The investment is intended, in particular, to facilitate the energy-related operations of the planned regional utility.
According to a press release, Munich-based SE-Trade will receive 5 million euros in additional capital as a result. Vispiron GmbH remains the majority shareholder. SE-Trade has not disclosed the size of Zenergie’s stake.
Zenergie GmbH is a subsidiary of Stadtwerke Wunsiedel founded in 2024; it is 95.1 percent owned by SWW and 4.9 percent by Zukunftsenergie Nordostbayern. Its primary purpose is to market regionally generated electricity and organize the local energy supply in Northeast Bavaria. The managing director is SWW Managing Director Marco Krasser.
The investment in SE-Trade is part of the “regional utility” concept developed by SWW. Under this concept, regionally available generation facilities, storage systems, and consumers are to be managed collectively. SE-Trade provides the necessary energy-related services for this purpose. These include electricity procurement and marketing, quarter-hourly forecasts, balancing group management, and billing.
According to its own figures, SE-Trade currently manages more than 350 MW of photovoltaic capacity, 100 MW of wind power, storage facilities with a capacity of 100 MWh, and more than 40 fast-charging stations. The company reports an annual electricity trading volume of 850 million kWh. In 2025, SE-Trade generated revenue of 60 million euros.
For SWW, one purpose of the investment is to avoid having to build the trading and settlement processes required for the regional utility from scratch. At the same time, Zenergie can contribute to the further development of the platform. “Only when local generation, consumption, and grid conditions are factored into market decisions will stable prices and a less-stressed grid emerge,” explained Krasser.
The Regionalwerk is not intended to be limited to Wunsiedel. Other municipal utilities will also be able to use the SE-Trade platform under their own brand. Customer relations and pricing will remain the responsibility of the respective municipal utility, while SE-Trade handles the energy management processes behind the scenes.
Author: Stefan Sagmeister