UNIGRID ships first sodium-ion home batteries to Europe, targets US by end 2026

California startup UNIGRID has installed its Na+Casa residential battery in European homes, with US rollout expected by the end of 2026 pending North American certification. The 9.25 kilowatt hour sodium-ion system is designed for a 25 year lifespan and eliminates thermal propagation risk, positioning it as an alternative to lithium-ion storage for solar-paired homes.

Why it matters: Sodium-ion chemistry sidesteps lithium, cobalt and nickel supply chains while promising longer asset life and lower fire risk, factors that could reshape procurement decisions for residential storage installers and utilities exploring distributed energy resources.