Tesla Powerwall 3 - fully integrated home battery system

For all installations, our survey form is required to be completed along with the requested photo's & video's to ensure that we have all the required information to understand your project and check if additional work is required.  To view our full range of home battery storage packages visit our collection page here To request a bespoke home battery storage quote please complete our quotes form 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 efficiencyThis 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: