VSB Group has successfully connected the repowered Elster wind farm to the electricity grid in Saxony-Anhalt, Germany. With an installed capacity of 105.6 MW, it ranks among the largest repowering projects in Europe, according to the company.

Energy production has increased sixfold compared to the original site, thanks to next-generation turbine technology.

The new wind farm generates 235 GWh of electricity annually—enough to supply around 67,000 three-person households, comparable to the population of a city the size of Heidelberg.

With an efficiency increase of nearly 600%, the Elster plant highlights the vast potential of repowering. This strategy holds particular promise in countries like Germany and France, where many older turbines are still in operation.

According to Dr. Felix Grolman, CEO of VSB Group “every kilowatt-hour generated through the repowering of the Elster wind farm strengthens Europe's energy sovereignty and brings us closer to achieving the EU’s climate goals.”

VSB has been involved with the Elster site for over two decades. Between autumn 2021 and autumn 2022, the old turbines were dismantled. Many of their components were given a second life, either reused as spare parts or reinstalled at other locations.

The 16 SG 6.6-155 turbines were supplied by European manufacturer Siemens Gamesa. “Modern turbines like the SG 6.6-155 deliver greater output using less land and make a clear, measurable contribution to climate protection,” said Christian Essiger, Head of Onshore Business in Germany at Siemens Gamesa.

“Each turbine generates approximately 48 times more energy over its lifetime than what is needed for its manufacturing, installation, and operation.”

Two additional turbines are scheduled to be installed in autumn 2025. “Grid connection, permitting, dismantling—the project presented significant challenges at every stage,” said Thomas Winkler, Managing Director of VSB Germany, responsible for planning and construction.

“Its successful completion shows how existing facilities can be made future-ready through extensive experience and close collaboration with partners and local authorities.”