IN Brief:
- NGEN Austria has started construction on an 85 MW / 170 MWh battery system in Wagenham, Upper Austria.
- The project is intended to balance wind and solar variability and support long-term grid stability.
- The development comes as Austria’s storage requirement is projected to rise sharply toward 2040.
NGEN has started construction on an 85 MW / 170 MWh battery energy storage system in Wagenham, Upper Austria, moving ahead with what it describes as the largest project of its kind in Austria and one of the larger grid-scale battery developments now under construction in Europe. The project is due online in 2026.
The site sits close to the German border in a part of Austria with increasing exposure to variable renewable generation and cross-border power flows. Once in operation, the system is intended to absorb and release power to balance short-term fluctuations from wind and solar output, while supporting wider grid stability in Upper Austria.
The project follows earlier NGEN storage deployments in Arnoldstein and Fürstenfeld, extending the company’s footprint in the Austrian market from regional battery schemes into a much larger system-critical installation. That progression matters because Austria’s storage requirement is now moving from pilot-scale and balancing-led discussion into more formal infrastructure planning.
A study referenced alongside the project puts Austria’s battery storage need at 8.7 GW by 2040 as renewable generation expands and electricity demand rises across industry, heating, hot water, transport, and mobility. On that basis, Wagenham is less a one-off project than an early indication of the storage scale the Austrian system will need to accommodate over the next decade.


