Installed Tesla Powerwall 3 | 11kW Hybrid 1ph | 13.5kWh usable capacity | IP67 All In One | Gateway available | Ave £367 /kW

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Nationwide Solar & Battery Installations Across the UK

We provide professional solar and battery storage installations nationwide across most areas of the UK. Every system is fully certified and installed by qualified engineers, giving you peace of mind and long-term reliability.

Tesla Powerwall 3 Data Sheet 

Tesla Backup Gateway 2 Datasheet

Tesla Powerwall Warranty

*Please note: Installations of the Tesla Powerwall are limited to the areas marked on the map

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

Tesla Backup Gateway

The Tesla Backup Gateway 2 provides ultra-fast islanding, smart metering and full system monitoring for all Tesla Powerwall installations. Compact, IP55-rated and designed for rapid setup, the Gateway manages grid interaction, enables seamless backup power, and supports advanced load control for UK homes and businesses.

Critical System Control for Powerwall Installations

Sub-50 ms Backup Transition

Installed between the grid supply and the Powerwall, the Backup Gateway 2 detects grid loss in less than 50 milliseconds, instantly switching the property to battery backup and ensuring uninterrupted power.

Smart Metering & Advanced Monitoring

The Gateway provides:

• Real-time site metering

• Solar and load monitoring

• Remote diagnostics and system visibility through the Tesla App

This ensures optimal performance and fast troubleshooting without site visits.

Compact, Installer-Ready Design

Built for UK Installers

Encased in a 584 × 380 × 127 mm IP55-rated enclosure, the Gateway ships: