St Peter’s Church, Winchcombe, Cheltenham, GL54 5LU.

This historic 14th-century church needed a large battery system that could charge overnight and help meet the building’s electricity demand during the day. The project demonstrates how the same grid-charging strategy can be scaled beyond a domestic property for a larger, three-phase site.

The Installed System

• Duracell 15kW three-phase hybrid inverter
• Six Duracell 5.12kWh batteries
• 30.72kWh total battery capacity
• System cost: £13,995
• Estimated savings: approximately £2,500 per year

The Result

The batteries are charged at night and provide stored electricity during the day, when the church needs it. This gives the building a practical way to make use of lower-cost charging periods and reduce the amount of higher-rate electricity purchased during operating hours.

Although this project uses a larger Duracell system rather than the FOX packages shown above, it is a strong real-world example of the same approach: buy and store electricity at the right time, then use it when the property needs it most.