UNIGRID launches sodium-ion home battery in Europe
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- UNIGRID has shipped the first units of its Na+Casa sodium-ion home battery, with systems now installed in European homes
- UNIGRID expects to begin U.S. installations of Na+Casa by the end of 2026, pending North American certification for sodium-ion batteries
- Na+Casa stores 9.25 kWh of electricity, is compatible with most hybrid inverters, and is designed to last 25 years—matching the typical lifespan of rooftop solar systems
- UNIGRID claims the battery’s sodium-ion chemistry eliminates the risk of thermal propagation, offering a safer alternative to lithium-ion without compromising financial competitiveness
- UNIGRID is currently producing 200 MWh of sodium-ion battery cells annually and plans to scale to 2 GWh by 2027 through manufacturing partnerships in China, South Korea, and Japan
- Sodium-ion batteries offer advantages in temperature tolerance, operating from -40°F to 140°F (-40°C to 60°C), making them viable across extreme climates
Why it matters: Homeowners gain a safer, longer-lasting battery option that could eliminate mid-life replacements in solar systems, while UNIGRID’s 10x production ramp by 2027 tests whether sodium-ion can capture share from lithium-ion in stationary storage without relying on constrained minerals.
