Callow Oils, a leading provider of fuel and lubricant solutions, sought to reduce their carbon footprint and operational costs by integrating renewable energy into their business operations. Initially, Solar Select installed a 50kW solar PV system at the petrol station in Chaddesley Corbett in 2024.
At the time of the original install, it was agreed that battery storage would not be included initially, allowing Solar Select to monitor the system’s performance over a certain period, hence better understand the garage’s fluctuating energy usage across different seasons and trading patterns.
Since the installation was completed the team at Solar Select collected and analysed performance data from the site. The findings were significant and despite the site’s regular daytime energy consumption, over 50% of the solar energy generated was exported back to the grid on average. This was particularly evident during evening hours, when solar generation stopped and the garage became more reliant on grid-supplied electricity.
With these insights, Solar Select presented a solution to maximise the value of their existing solar investment:
1. Replace the original inverter with a 36kW HANCHU C&I three phase hybrid inverter.
2. Install 7 x 9.4kWh HANCHU high voltage batteries and 1 Battery Management System (BMS).
This new setup enables the customer to store surplus solar energy generated during the day and utilise it overnight or during periods of lower generation, dramatically reducing their reliance on the grid and lowering overall energy costs.
The Hanchu iESS monitoring platform provides a clear and user-friendly interface, allowing the customer to view real-time performance data. In addition, Solar Select continues to remotely monitor the system to ensure it operates at peak performance and to provide further insights as the system matures.
This project is a great example of how phased implementation beginning with solar PV and later integrating battery storage can deliver long-term benefits based on real usage data.
Inverters
Batteries
Commercial
EV Chargers
Accessories
Heat Pumps
Radiators
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