VSB Group Connects One of Europe's Largest Repowering Projects to the Grid
The VSB Group has successfully connected the Repowering Wind Farm Elster to the grid. This impressive project, with an installed capacity of 105.6 megawatts, stands among the largest repowering projects in Europe. The energy output has increased sixfold compared to the original site due to modern turbine technology.
Generating Efficiency and Sustainability
The new wind farm produces 235 gigawatt hours of electricity annually, enough to power around 67,000 three-person households—similar to a city the size of Heidelberg. Dr. Felix Grolman, CEO of VSB Group, emphasizes that every bit of energy produced enhances Europe’s energy independence and contributes to meeting critical climate goals.
Revolutionary Approach to Repowering
With a staggering efficiency increase of nearly 600 percent, the Elster site serves as a potent demonstration of the potential of repowering. This strategy is promising in nations where older turbines are still operational.
Future-Proofing Existing Wind Farm Sites
The history of VSB’s involvement at Elster spans over two decades. From autumn 2021 to autumn 2022, the old turbines were dismantled, with many components being reused for spare parts or relocated for continued use.
According to Thomas Winkler, Managing Director of VSB Germany, the project faced challenges at every stage, from grid connection to dismantling. He noted that the successful outcome showcases how existing sites can evolve meaningfully through experience and collaboration with local entities.
Utilizing Advanced European Technology
The 16 SG 6.6-155 turbines utilized in this project come from the reputable European manufacturer Siemens Gamesa. Christian Essiger, Head of Onshore Business in Germany at Siemens Gamesa, mentions that modern turbines generate significantly higher yields while using less land, greatly enhancing climate protection efforts.
A Commitment to Expansion
This autumn, the wind farm will see the addition of two more turbines. Grolman envisions a clear future path: fewer turbines yielding more energy while utilizing land effectively—a strategy crucial for the strength of the European wind industry.
Comparing Old and New Wind Technology
The efficiency of these new turbines compared to those they replaced is remarkable:
Factbox: Old turbines vs. new turbines
Former Wind Farm (Decommissioned Turbines): 50 turbines of type Enercon E-40 with a total installed capacity of 30 MW, producing 36 GWh annually.
Repowered Wind Farm: Now consists of 16 Siemens Gamesa SG 6.6-155 turbines, delivering an impressive 105.6 MW operational capacity, translating to 235 GWh of energy yield.
About VSB Group
VSB Group, headquartered in Dresden, stands as one of Europe’s leading developers in renewable energy. The company operates under TotalEnergies since its integration in 2025. VSB is involved in the development of onshore wind and photovoltaic parks, as well as battery storage solutions and operational management. With an expansive footprint across six European countries and a project pipeline of over 18 GW, VSB has installed more than 750 renewable energy plants since its inception in 1996, offering services for an additional 3 GW portfolio and actively engaging in e-mobility for freight transport. The group employs over 500 professionals in its various subsidiaries and branches.
Frequently Asked Questions
What is the significance of the Repowering Wind Farm Elster?
The Repowering Wind Farm Elster represents one of Europe’s significant renewable energy advancements, enhancing electricity output while minimizing land usage.
How does modern turbine technology improve efficiency?
Modern turbine technology, such as the Siemens Gamesa SG 6.6-155, drastically increases energy production capacity while using less land, contributing to climate protection strategies.
What are the plans for future turbine installations?
The VSB Group plans to add two additional turbines in autumn 2025, emphasizing smart land use and maximizing output in their operations.
How long has VSB Group been operating at the Elster site?
VSB has been active at the Elster location for over two decades, showcasing their commitment to sustainable energy development.
What other renewable energy efforts is VSB Group involved in?
Aside from wind power, VSB is active in solar projects, battery storage solutions, and e-mobility, reflecting their comprehensive approach to sustainable energy solutions.
