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Revolta Installs First Sodium-Ion Home Battery in Germany
Revolta has installed its first 10 kWh sodium-ion home battery at a customer site in Germany. This high-voltage system, comprising five modules, is integrated with solar PV and hydroelectric power. The installation signifies the beginning of commercial rollout, with further pilot projects planned. Revolta recently secured funding from the European Regional Development Fund.
The German company Revolta has taken a significant step in the rollout of sodium-ion battery technology by installing its first 10 kWh home battery at a customer site near Aschaffenburg. This high-voltage system, operating at a nominal voltage of 450 V, consists of five battery modules. The installation is integrated with an existing energy system that includes approximately 20 kW of solar PV and a small hydroelectric plant, which has supplied electricity to the property since 2017.
The property owner specifically sought a suitable sodium-ion home battery, motivated by a desire for greater energy independence. Each 2 kWh battery module weighs 18.7 kg and features an IP64 protection rating. The modules utilize only three battery cells each and are charged and discharged at 0.4 C, equating to a 2.5-hour power duration. In this 10 kWh configuration, a maximum power output of 4 kW can be expected. The energy density is published at 141 Wh/l and 107 Wh/kg.
Revolta views this installation as the commencement of the commercial launch for its sodium-ion solutions. Further installations at selected customer sites across Germany are planned in the coming weeks. To gather operational data, Revolta provides pilot customers with additional measuring devices at no charge. The insights gained will inform the development of the company's battery management system and firmware.
The company has stated that its 2026 production is already sold out but offers reservations for 2027, with priority given to customers who make a downpayment. The list price for a 2 kWh module is €599, totaling €2,995 for the five modules of the 10 kWh installation, not including the balance of system components required. Just a few weeks prior, Revolta secured funding from the European Regional Development Fund (ERDF) via the German state of Hesse, specifically for a project focused on a "highly efficient AC salt battery".
Source: ESS News
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