Domestic Energy Storage

Sun Harvester technology enables UK consumers to store the electricity they self-produce. Domestic or commercial consumers no longer need to purchase as much energy from the grid. This will enable consumers to manage their energy costs and take personal action to reduce carbon emissions. Our systems offer numerous unique attributes over many of our competitors ESS.

Sun Harvester systems have more usable energy

The Sun Harvester system has only one power conversion process therefore offering far more usable energy. This process is greater than 98% efficient.

Our GI-Series Intelligent ESS Model: F4.5 has an Installed Capacity of 6KW with a Usable Capacity of 5KW.Due to our unique technology it offers a massive Continuous Discharge Power Rating (AC) of 4000W.
(5000VA PF 0.8) with 63A (14kW) bypass. Optional Grid Control Module rated at 1000W

Unique Battery Management System (BMS)

Our unique battery management system (BMS) allows for only 80% deep discharge (DoD) typically doubling the lifespan compared to 100% DoD.


Sun Harvester ESS offer excellent flexibility due to their modular designs. Additional 2.5kWh battery modules can be added to increase storage, power Inverter modules to increase output power and charging modules to be added quickly and cost effectively. Competitor systems in many instances can only be expanded by installing a complete second unit.


The BMS constantly monitors the condition of the battery cells. 3U modules can be replaced
individually in the SH system. Some other competitor systems require complete unit replacement.
When the replaced modules eventually reach their end of life they are recyclable. LiFePO4 protected with Solar BMS can last 20 to 30 years.

Increased ROI

Due to the numerous design features allowing for more usable energy, compact design and increased battery life, Sun Harvester ESS offers an extremely high ROI for the end user compared to many of our competitor’s models.

We can manufacturer at our UK production facility bespoke ESS from 6 KW to 12 KW and beyond, in new build, retro- fit or 3 phase commercial options.