Revolta AG Secures ERDF Grant for Sodium-Ion Development

Frankfurt-based startup Revolta AG has secured crucial funding from the German state of Hesse, backed by the European Regional Development Fund (ERDF), to develop its 'Highly Efficient AC Salt Battery' project. The initiative focuses on creating a plug-and-play alternating current (AC) sodium-ion battery designed specifically for residential use, particularly targeting rental apartments that lack their own photovoltaic (PV) systems.

The innovative system utilizes sodium-ion cells, effectively eliminating the need for lithium and other critical raw materials. This chemistry offers high thermal stability and enhanced safety for home environments. The battery is engineered to charge when grid fees and energy prices are low, and discharge during peak pricing periods.

Supportive Regulatory Shift in Germany

This technological advancement arrives at a pivotal moment for the German energy market. On October 1, 2026, Germany’s grid regulator adopted new rules allowing storage systems to draw power directly from the grid and feed it back later with significantly lower levies and grid fees. These regulations apply even to storage systems without their own generation, fundamentally shifting the business case for grid-charging home batteries.

The new regulatory framework, combined with sodium-ion innovation, paves the way for decentralized flexibility in the German residential sector.

Following its presentation at Intersolar Europe 2026, Revolta is entering its commercial launch phase in Germany and has initiated a Seed financing round targeting €800,000 to support production ramp-up. The ERDF project, with eligible costs of €660,545 and a 40% EU co-financing rate, will run until December 2029.

Meanwhile, the German sodium-ion sector is expanding rapidly. Moll Batterien recently secured €22.17 million in public funding, including €2.52 million from the ERDF, for a planned 1 GWh sodium-ion battery manufacturing plant in Lichtenfels, Bavaria, underscoring the country's commitment to next-generation storage technologies.

Source: PV Magazine, Renewables Now

This article was assisted by AI analysis. Please refer to the original source for official information.