Tesla Energy | Powerwall 3 | 13.5 kWh battery

Tesla Powerwall 3 – Fully Integrated Solar & Home Battery System

#4: TESLA-1707000-31-J

Tesla Powerwall 3 Data Sheet 

Tesla Powerwall 3 Installation Manual

Tesla Powerwall Warranty

Tesla Powerwall 3 Quick Guide Expansion Multi Unit Installation

Tesla Powerwall 3 Quick Guide Required Additional Parts and Tools

Tesla Powerwall 3 Install System Shutdown Switch

The Tesla Powerwall 3 is an all-in-one solar-plus-storage solution, delivering 13.5 kWh usable capacity, up to 11.04 kW continuous AC output, and a built-in 20 kW DC solar inverter. Designed for UK homes seeking lower energy bills, reduced grid dependence, and seamless whole-home backup, Powerwall 3 stores energy from solar or the grid and manages it effortlessly through the Tesla App.

Key Benefits of Tesla Powerwall 3

All-in-One Solar + Storage

Powerwall 3 integrates battery storage and solar generation in one IP55-rated enclosure—no external inverter or combiner box required.

Whole-Home Backup

With up to 11.04 kW AC output and the ability to start heavy loads up to 185 A LRA, Powerwall 3 supports heat pumps, electric showers, ovens, and other demanding appliances during outages.

Maximised Energy Efficiency

• 89% solar-to-battery-to-home/grid efficiency

• 97.5% direct solar-to-home/grid efficiency
  This ensures more of your generated energy is used where you need it.

Engineered for UK Weather

Powerwall 3 delivers reliable performance across all climates:

• Operating range: –20 °C to 50 °C

• Battery & electronics: IP67 rated

• Wiring compartment: IP55 rated

• Suitable for wall or floor mounting

Scalable for Any Home Size

Modular Storage & Power

Scale your system as energy needs grow:

• Up to 4 Powerwall 3 units

• Up to 3 Expansion Modules

• Maximum system output: 44 kW AC

• Maximum total storage: 94.5 kWh

Built-In Safety & Smart Connectivity

Advanced Protection

• AFCI

• Isolation Monitor Interrupter

• Rapid Shutdown

• ±0.5% AC metering accuracy

Connected Control

• Wi-Fi, Ethernet & LTE communication

• Full system visibility via the Tesla App

• Remote firmware updates and diagnostics

Technical Specifications

Electrical Performance

• Nominal grid voltage: 230 VAC (single-phase)

• Continuous AC output: 11.04 kW (48 A @ 230 VAC)

• Load start capability: 185 A LRA (ideal for heat pumps)

• Max solar input: 20 kW DC (60–550 V), 3 MPPTs

• Typical operating noise: < 50 dB(A) at 1 m

Efficiency

• Round-trip efficiency: 89%

• Solar-to-home/grid efficiency: 97.5%

Installation Made Simple

The Powerwall 3 arrives as a 130 kg pre-wired cabinet (1105 × 609 × 193 mm) for fast installation.
Just anchor, connect conductors, scan the QR code, and commission.

Using the Tesla Installer Portal, the system automatically handles:

• Firmware updates

• System metering

• Adaptive load control

• Grid-approval documentation

This reduces installation time, minimises service visits, and enhances customer satisfaction.