Overview

• The Landratsamt Passau issued the plan approval, which Markus Söder formally presented to mark the project start in Untergriesbach, Landkreis Passau.
• Officials frame the plant as grid support for variable wind and solar generation through long-duration storage.
• The investment totals more than €400 million, according to project statements.
• Donaukraftwerk Jochenstein AG (Verbund) is leading development, with commissioning targeted for 2031–2032.
• Once in service, it would be Bavaria’s largest pumped-storage facility, surpassing Langenprozelten’s 164 MW and approaching the existing fleet’s roughly 400 MW combined.