Off-grid battery systems punish weak assumptions. Heat, high daily cycling, inverter compatibility and service distance matter as much as headline chemistry.
For sodium-ion to earn a place, suppliers will need to show stable performance, clear integration guidance, credible warranty support and pricing that makes sense against proven LiFePO4 systems.
That does not make sodium less interesting. It simply means the chemistry has to become a complete system before it becomes a strong off-grid recommendation.
