Device Comparison
Tesla Solar Inverter 3.8 kW vs 7.6 kW
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Use this comparison when you already want Tesla and the main question is whether the smaller 3.8 kW unit is enough or the 7.6 kW model is the better fit for the PV array and service setup.
| Install fit | ||
|---|---|---|
| Phase support | North American split-phase residential solar systems | North American split-phase residential solar systems |
| Installation | Wall-mounted Tesla residential string inverter | Wall-mounted Tesla residential string inverter |
| Measurement | Inverter telemetry through Tesla app and Tesla energy ecosystem | Inverter telemetry through Tesla app and Tesla energy ecosystem |
| Max current | 16 A | 32 A |
| Monitoring | ||
| Protocol | Tesla App | Tesla App |
| Local API | No | No |
| Cloud dependency | Tesla app/cloud ecosystem is required for normal homeowner monitoring. | Tesla app/cloud ecosystem is required for normal homeowner monitoring. |
| Home Assistant | No | No |
| Solar fit | ||
| Solar import/export | Yes | Yes |
| Buying context | ||
| Price range | Installer supplied; usually quoted with a Tesla solar system | Installer supplied; usually quoted with a Tesla solar system |
| Availability | US, selected Tesla solar markets | US, selected Tesla solar markets |
| Source check | ||
| Last verified | Apr 22, 2026 | Apr 22, 2026 |
| Product page | Official page | Official page |
Verdict
Choose 3.8 kW for smaller arrays and simpler installs, and 7.6 kW when the system size and expansion headroom justify the larger inverter.