To view our full range of installed home battery storage packages visit our collection page here

To request a bespoke 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.

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  Pricing and Deposit Information

  • A £750 refundable deposit is required to begin the installation process and, where necessary, to submit your DNO (Distribution Network Operator) application.

  • The balance payment is due before delivery of the system. (Please note: any date shown at checkout is only an estimate.)

  • The listed price includes:

    • Full installation

    • DNO application submission

    • MCS certification

    • 2-year workmanship warranty

    • Delivery of all components

  In some cases, a new sub-board or RCD board may be required. If so, this will be quoted separately or charged on the day if installers need to purchase upgrade parts.

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  Optional Backup Power Upgrades

  For properties in remote UK locations or where backup power is required, additional electrical components can be installed:

  • Full house backup – With either automatic switchover or manual switchover, depending on system size and capacity.

  • Critical load backup – Using the EPS output and a second consumer unit to supply essential circuits only (e.g. lighting, refrigeration, Wi-Fi, medical equipment).

  Backup upgrade options are available on our installed packages page here. These can be added to your order after your deposit is paid, with payment only due once components are ready for installation.

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  Steps to Proceed After Deposit Payment

  To move forward with your installation, please provide:

  1. Your MPAN number (found on your electricity bill).

  2. Photos of the proposed installation space for the battery system, with a brief description of the location.

  3. Photos of your consumer unit, along with a description of its position relative to the battery system location.

  4. Photos of your existing solar inverter setup (if applicable).

#1:SUNSYNK-INSTALLED-3PH-10.24KWH-POWERWALL

  Sunsynk 3ph Data Sheet

GSL PowerWall Datasheet

Visit Sunsynk collection page for further information and documents

10.24kWh Powerwall product page for further information & documents

Sunsynk Three-Phase Hybrid Inverter & GSL 10.24kWh Powerwall Battery

Please note: This product is only available to purchase together with a professionally installed system.

The Sunsynk Three-Phase Hybrid Inverter combined with the GSL 10.24kWh Powerwall battery delivers one of the most advanced energy storage and management solutions available in the UK. Perfect for commercial and large residential applications, this setup lets you store solar energy, buy electricity at off-peak rates via Octopus Agile & Flux, and even sell surplus energy back to the grid through SEG payments.

Sunsynk Three-Phase Hybrid Inverter Features

• Intelligent power management across solar, grid, and generator inputs

• Unique load balancing – allows uneven distribution across phases while maintaining perfect rotation (e.g., 20% / 20% / 60%)

• High-performance specs: 250A max charge/discharge current

• Supports up to 16 inverters in parallel for large-scale systems

• Frequency droop control for stable performance

• Interactive display with RS485 & Wi-Fi interface

• 5-year warranty for peace of mind

GSL 10.24kWh Powerwall Battery Features

• Compatible with a wide range of inverters

• Includes battery-to-battery and battery-to-inverter cables

• Flexible storage – supports up to 16 batteries in parallel

• Built-in safety features and certifications: CE/ROHS/VDE/MSDS/UN38.3/IEC

• Integrated inverter, solar charger, and battery functions

• MPPT controller for maximum solar efficiency

• Configurable LCD display with auto-restart for grid or generator

• Compact design for easy transportation and installation

Smart Energy Management with the Sunsynk App

• Remote Control – Change and edit inverter settings from anywhere with an internet connection

• Real-Time Monitoring – Instantly track usage, battery status, and live system stats

• Push Notifications – Get alerts during power cuts or when switching to generator/battery backup

• Advanced System Updates – Update your inverter’s operating system remotely via the app

• Custom Reports & Graphs – Analyse performance and optimise energy use to save money

Octopus Agile, Flux & Go Integration

Sunsynk hybrids are fully integrated with Octopus Agile, Flux & Go tariffs. With this setup, you can:

• Charge batteries at the cheapest off-peak rates

• Discharge power when tariffs are high to save money

• Sell surplus energy back to the grid via SEG payments

• Maximise return on investment with smart, automated energy management