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Tesla Powerwall 3
SKU: TESLA-1707000-31-J
Tesla Powerwall 3 is a fully integrated solar-plus-storage solution that pairs 13.5 kWh of usable battery capacity with up to 11.04 kW of continuous AC output and a built-in 20 kW DC solar inverter. It stores solar or grid energy for use during peak-price periods or outages, lowers electricity bills, reduces grid dependence, and delivers whole-home backup—all managed via the Tesla App.
- Manufacturer Tesla Energy
Tesla Powerwall 3 streamlines residential solar installations by combining battery storage and PV in one IP55-rated enclosure. With up to 20 kW of DC solar input across three MPPTs and up to 11.04 kW AC output, a single Powerwall 3 can support large homes and start heavy loads up to 185 A LRA without external inverters or combiner boxes . Its 89 % round-trip efficiency and 97.5 % direct solar-to-home/grid efficiency maximize energy harvest and delivery. Rated for –20 °C to 50 °C operation and up to 3,000 m elevation, the IP67-protected battery/electronics and IP55 wiring compartment ensure reliable performance in all UK climates. A 10-year connected warranty guarantees sustained value and peace of mind.
- 13.5 kWh usable storage per unit keeps homes powered overnight or during outages .
- Scalable architecture: stack up to 4 Powerwall 3 units and 3 Expansion modules for up to 44 kW AC output and 94.5 kWh storage
- Integrated 20 kW DC solar inverter with 3 MPPTs eliminates the need for third party inverters
- All-weather design: IP67 battery/electronics, IP55 wiring compartment, –20 °C to 50 °C operating window, wall- or floor-mountable
- Advanced safety & connectivity: built-in AFCI, Isolation Monitor Interrupter, Rapid Shutdown, Wi-Fi/Ethernet/LTE communications, ±0.5 % AC metering accuracy, and Tesla App control .
Technical highlights that close the sale:
- Nominal grid voltage: 230 VAC single-phase
- Continuous AC output: 11.04 kW (48 A) at 230 VAC
- Load start capability: 185 A locked-rotor amps for heavy loads such as heat pumps
- Solar-to-battery-to-home/grid efficiency: 89 %
- Solar-to-home/grid efficiency: 97.5 %
- Maximum solar STC input: 20 kW DC (60–550 V, 3 MPPTs)
- Operating noise: < 50 dB(A) typical at 1 m
Installation simplicity
A single 130 kg pre-wired cabinet (1105 × 609 × 193 mm) ships ready to mount. Anchor, land conductors, scan the QR code, and commission in minutes. The Tesla ecosystem automates firmware updates, metering, adaptive load control, and grid-approval paperwork via the installer portal—minimizing service calls and maximizing referral business .