Vattenfall has begun construction of the Hommerdingen-Biesdorf hybrid power plant in Germany, combining wind and solar generation within a single integrated system. The project includes four Enercon wind turbines with a total capacity of 17 MW and more than 12,000 solar modules providing 7.6 MWp. The site spans the municipalities of Hommerdingen and Biesdorf in the Südeifel region near the Luxembourg border, with commissioning planned for autumn 2026.
A key element of the project is its shared grid connection. Instead of connecting the solar installation separately, it will be linked to the distribution grid via the existing wind park infrastructure operated by local grid partner Westnetz. Technically, the solar installation is treated like an additional wind turbine, meaning the entire project requires only a single grid connection.
This approach reflects an important advantage of hybrid renewable systems: wind and solar often generate electricity at different times. Their complementary production profiles can ease pressure on the distribution grid, reduce the risk of overload and enable more efficient use of existing infrastructure, while also lowering grid connection costs.
Vattenfall has already implemented similar concepts in the Netherlands, including the Haringvliet project, which combines wind, solar and battery storage. Hybrid solutions like these are becoming an increasingly important element of modern power system design and the transition to fossil-free energy.
