Effective September 1, Next Kraftwerke takes over the short-term marketing of 173 MWp of solar capacity in the day-ahead market. This represents approximately 75 percent of the total capacity of the Halenbeck-Rohlsdorf Solar Park. The marketing is being conducted under a 10-year power purchase agreement between Shell Energy and the operators of the Sonenpark Halenbeck-Rohlsdorf GmbH. The PPA provides long-term planning certainty and enables market-oriented integration of the solar power.

Starting January 1, 2027, a portion of the solar power purchased under the PPA will be supplied to the REFHYNE 2 electrolyzer at Chemical Park Rheinland in Cologne-Wesseling. There, the green electricity will be used to operate a 100-MW electrolyzer and produce green hydrogen for industrial applications.
The remaining approximately 25 percent of electricity generation is sold outside the PPA. Through a special electricity rate, residents of the municipality can benefit directly from local energy production.
With a total installed capacity of 229 MWp across approximately 200 hectares, the Halenbeck-Rohlsdorf Solar Park in Brandenburg is one of Germany’s largest photovoltaic projects.
Not only is the size of the solar park extraordinary, but so is the way it was built. pvx energy GmbH played a key role in managing and coordinating the project from development and planning through the construction phase to commissioning. The project was carried out in collaboration with specialized planners, service providers, and partner contractors.
From the very beginning, the solar park was designed with the demands of a changing energy market in mind. A high degree of automation, digital process control, and comprehensive remote monitoring form the foundation for efficient and reliable operation, as well as a flexible response to market and grid requirements. Equally central to the development and implementation was the goal of reconciling large-scale energy generation with the needs of environmental protection and nature conservation.
The Halenbeck-Rohlsdorf solar park was financed almost entirely by private investors. Subsidies under the Renewable Energy Sources Act (EEG) apply only to 20 MW of the installed capacity. At the same time, the region benefits from attractive electricity rates and local economic growth.
The plant is operated in close coordination between Next Kraftwerke and the grid operator e.dis. This allows market requirements and grid-related interventions to be efficiently coordinated and generation to be flexibly adapted to current conditions. This helps stabilize the power system, particularly during periods of high feed-in and negative electricity prices.
With this model, Next Kraftwerke, Shell Energy, and Solarkraftwerk Halenbeck-Rohlsdorf GmbH are setting an important milestone for the market-oriented integration of large-scale, largely subsidy-free photovoltaic plants into the energy system.
“As one of the leading operators of flexible energy facilities, we are demonstrating with Sonnenpark Halenbeck how large-scale, unsubsidized solar parks can be economically optimized while also being flexibly integrated into the power grid,” said Marc Ruehs, CEO of Next Kraftwerke. “The direct use of green electricity for hydrogen production is a key component in the decarbonization of industrial processes. At the same time, through smart marketing and management, we are making an important contribution to stabilizing the power grid.”
“The Halenbeck-Rohlsdorf project demonstrates that solar power can be generated economically and used for industrial applications, even without extensive subsidies,” emphasizes Karl-Heinz Remmers, Co-CEO of Solarkraftwerk Halenbeck. Denis Sherlizyn, also Co-CEO of Solarkraftwerk Halenbeck adds: “The combination of long-term power purchase agreements, local value creation, and sustainable land use creates a forward-looking model for the further expansion of renewable energy in Germany.”
Further information about Solarkraftwerk Halenbeck on https://sonnenpark-halenbeck-rohlsdorf.de/.
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