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Frankfurt-based Revolta has commissioned its first customer sodium-ion home battery, a 10 kWh system near Aschaffenburg, Germany. The installation marks the start of the company’s commercial launch, but remains part of a pilot rollout intended to collect operating data; Revolta says it is sold out for 2026 and is taking reservations for 2027.
German startup Revolta has commissioned its first customer sodium-ion home battery, a 10 kWh system installed at a property near Aschaffenburg. The installation begins the company’s commercial launch, but Revolta says the rollout remains at the pilot stage, with further sites planned across Germany to gather data on real-world operation.
The high-voltage system operates at a nominal 450 volts and combines five modules, each rated at 2 kWh. Revolta says the installation uses an SMA inverter. The company’s data sheet lists each module at 18.7 kilograms, with IP64 protection and an energy density of 141 watt-hours per liter and 107 watt-hours per kilogram. Each module contains three battery cells.
The home already has about 20 kW of solar photovoltaic capacity and a small hydroelectric plant in a former mill. The hydro plant has supplied the family with electricity since 2017. According to Revolta, the owner had been waiting for a suitable sodium-ion home battery and sought greater energy independence. Revolta team members Julian Mattheis and Florina Thaler installed and commissioned the system.
Revolta says the modules charge and discharge at 0.4 C, corresponding to a 2.5-hour power duration. For this five-module configuration, the company’s stated rate implies a maximum output of about 4 kW; the announcement did not provide a separate rated-power specification. Revolta is providing pilot customers with an additional measuring device at no charge. It plans to use the collected operational data to develop its battery-management system and firmware.
Pilot Data From a Customer Home
The installation gives Revolta a chance to observe how its sodium-ion system performs outside a controlled setting. Data from a home with both solar generation and a small hydro plant could help the company understand battery use alongside multiple local sources of electricity. The company says the pilot measurements will inform its battery-management system and firmware; no performance results from this first installation have yet been published.
For prospective buyers, the announcement is an early indication of product availability, not evidence of broad commercial deployment. Revolta says it is sold out for 2026 and is accepting reservations for 2027, with priority given to customers who make a down payment. The company lists five modules for the 10 kWh configuration at €2,995, but that figure does not include the other equipment and installation components needed for a complete system.
The project also adds a customer installation to a still-developing product rollout. The source report describes the system as a pilot and does not provide measured efficiency, cycle life or long-term reliability results. Those figures will matter to households comparing storage options, but they cannot be inferred from the system’s capacity or chemistry alone.
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From First Installation to Pilot Rollout
The new system is a 10 kWh residential battery, not a record-setting installation by size. Its importance in the report is that it is Revolta’s first commissioned customer system and a step from product development toward a limited market rollout. The company plans additional pilot installations at selected customer sites around Germany in the coming weeks.
Revolta is based in Frankfurt. A few weeks before this installation was reported, the startup received funding through the European Regional Development Fund via the German state of Hesse. The funding is earmarked for a project focused on what the company describes as a “highly efficient AC salt battery.” The available report does not establish whether that funded project is the same product as the installed home system, so the two should not be treated as identical without further details.
The company’s published module price is €599 per 2 kWh unit; it lists €2,995 for the five modules in the 10 kWh installation. The source report says this excludes the balance-of-system equipment required for an installation. It does not give a complete installed price, and the module price alone is not a full measure of what a customer would pay.
Performance and Full System Cost
The announcement does not disclose a confirmed rated-power figure, cycle life, round-trip efficiency or full installed price. Although the reported 0.4 C charge and discharge rate implies about 4 kW for a 10 kWh configuration, Revolta did not publish a separate rating in the information cited. The module price excludes the balance of system and installation, leaving the total customer cost unclear.
It is also too early to assess durability or performance in everyday use. Revolta says it will collect data at pilot sites, but it has not yet released operating results, explained how long monitoring will run, or stated when it expects to publish findings. The source report does not give details on warranties, service arrangements or the technical relationship between the installed battery and the ERDF-funded AC salt battery project.
More German Pilot Sites Planned
Revolta plans to install additional systems at selected customer properties across Germany in the coming weeks. The company says pilot customers will receive a free measuring device so it can record how the batteries perform in daily use. Those results are intended to guide updates to its battery-management system and firmware.
For buyers, the next known availability milestone is 2027: Revolta says it has no remaining supply for 2026 and is taking reservations for the following year, with priority linked to a down payment. The company has not provided a schedule for releasing pilot findings or further technical and pricing details. Until it does, the installation establishes that a customer system has been commissioned, but not how the product will perform across a wider fleet.
Key Questions
Where was Revolta’s first sodium-ion home battery installed?
Revolta installed and commissioned the 10 kWh system near Aschaffenburg, Germany, at a home with solar panels and a small hydroelectric plant.
What is the system’s capacity and expected output?
The system uses five 2 kWh modules for 10 kWh of combined capacity. Revolta reports a 0.4 C charge and discharge rate, which implies about 4 kW for this configuration, but the announcement did not give a separate rated-power specification.
How much does the 10 kWh configuration cost?
Revolta lists the five modules at €2,995, based on a published price of €599 per 2 kWh module. That price does not include the balance-of-system equipment or installation, so the full system cost is not stated.
Can customers buy a Revolta battery in 2026?
Revolta says it is sold out for 2026 and is accepting reservations for 2027. The company says customers who make a down payment receive priority.
Has Revolta published performance results?
No operating results from the first installation were included in the report. Revolta plans to collect data from pilot systems to help develop its battery-management system and firmware, but it has not stated when findings will be released.
Source: ess-news.com
