The Natec Home has a nominal capacity of 7.68 kWh and a power of 3.8 kW and allows parallel connection of up to 15 units. The reference price is set at €3,990.
By ESS news
Austrian company Accupower, headquartered in Graz, has developed Natec Home, a storage system based on sodium ion technology, designed for integration into residential photovoltaic installations, electrical backup applications and small and medium configurations in industrial environments. According to the company, this is the first household storage system to use this technology and was developed and designed entirely in Austria.
The Natec Home has a nominal capacity of 7.68 kWh and a power of 3.8 kW. The system allows parallel connection of up to 15 units, allowing higher capacity configurations for both collective self-consumption and business applications requiring energy backup. The price is set at €3,990 ($4,625), roughly comparable to conventional lithium-ion based home systems.
The manufacturer emphasizes the high thermal stability of the system and its performance over a wide temperature range. The unit can operate between -30 C and 50 C without significant deterioration. At subzero temperatures it maintains approximately 90% of its rated performance, compared to steeper drops in conventional technologies, potentially allowing outdoor installation in many environments without heating or climate control requirements. It had an IP65 rating for protection against water and dust ingress.
The estimated lifespan for residential applications is between 20 and 25 years via 8,000 charging cycles with a minimum residual capacity of 80% at the end of that period. This durability is attributed both to the sodium ion chemistry and to the Battery Management System (BMS), developed by the company for continuous monitoring of critical parameters such as charge status, overcharge and overdischarge protection, thermal control and data management. Accupower reached industrial maturity of its sodium-ion batteries for industrial applications in 2025, an experience it has now transferred to the residential segment.
The system measures 80cm x 22.7cm x 50cm, with a larger footprint than some equivalent lithium-ion systems. However, the company notes that the design prioritizes operational safety, thermal stability and longevity over compactness.
As a complementary product, the company has introduced Natec X-Plore, a sodium-ion battery aimed at small-scale mobile applications such as light vehicles, boats and caravans. A photo of the X-Plore, no longer available from an Austrian online battery store, showed a typical ‘lead-acid car battery’ appearance, although this has not been confirmed.
In addition, container-sized industrial solutions called Natec Store and Natec Store C20 are planned to be launched in mid-2026, which will provide electricity supply to off-grid locations.
The company started serial production of its batteries in April 2025.
Accupower thus joins the European manufacturers of sodium-ion cells and batteries in the European Union. The European Economic and Social Committee (EESC) recently announced that it will put sodium batteries at the heart of its work on the EU industrial strategy and calls for quick action.
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