How much does a solar battery (Powerwall) cost?
Home solar battery installation runs $10,000 for a single 10–13 kWh unit, $16,000 for a typical Tesla Powerwall 3 install with backup gateway, and $28,000+ for stacked multi-battery whole-home backup systems.
Quick price points (2026)
| Tier | Cost | Unit |
|---|---|---|
| Low | $10,000 | installed |
| Typical | $16,000 | installed |
| High | $28,000 | installed |