Tesla's Megapack battery storage units have officially gone online at Austria's largest battery energy storage system (BESS). It installed it in record time – just seven months. Located in Fürstenfeld, in the country's southeast, the facility has 24 MWh in capacity and a maximum output of 12 MW. Slovenian company NGEN has switched on what it claims to be. Developer NGEN Smart Grid Systems has completed a 10. The Slovenia-headquartered firm has installed the project in Ardnoldstein, which is now grid-connected and participating in the electricity market. In November 2025, Austria's Mooshof Farm was honored with the prestigious Austrian Solar Prize, awarded by the European renewable energy authority EUROSOLAR, for its innovative and highly efficient energy self-sufficiency project. The project, developed by Slovenian company Ngen, features six Tesla Megapack 2XL units deployed near a solar farm and a wood gas generator in Fürstenfeld, Austria.
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