8kW Solar & Battery Installation in Cheltenham

GreenGenUK has recently completed an 8.07kW solar PV and battery storage installation at a property in Coberley Village, near Cheltenham in Gloucestershire.

As electricity prices continue to fluctuate, homeowners across Cheltenham are increasingly looking for smart, future-proof energy systems. This project is a great example of how properly designed solar and battery storage can significantly reduce reliance on the grid.

The System Installed

This installation was designed to maximise self-consumption and integrate seamlessly with smart electricity tariffs.

System specification:

• 17 × Aiko 475W solar panels (8.07kW total array)
• Sigenergy SigenStor 8kW hybrid inverter
• 9.04kWh Sigen Battery storage
• Integrated with Intelligent Octopus Go tariff

The system is projected to generate 5,769kWh per year, with an estimated 77% self-consumption rate thanks to the battery storage.

This means more of the electricity generated is used within the home — rather than being exported at lower Smart Export Guarantee rates.

Why Battery Storage Makes the Difference

Without battery storage, typical self-consumption sits around 30–40%.

With the 9.04kWh Sigen battery installed, this Cheltenham home is expected to achieve:

• 55% grid independence
• Over 4,400kWh per year used directly within the property
• Overnight charging at just 7p/kWh using smart tariffs

This allows the system to:

• Power the home during peak-rate evening periods
• Reduce exposure to rising daytime electricity prices
• Optimise energy usage automatically

Battery storage transforms solar from a daytime-only technology into a 24-hour energy strategy.

Financial Impact

Based on the homeowner’s annual usage of approximately 8,000kWh, the projected performance includes:

• Estimated first-year savings: £1,641
• Lifetime projected bill savings: £94,366
• Estimated payback period: <7 years
• Net projected savings over 25 years: approx. £79,705

These projections assume energy inflation of 7% annually and current export rates.

For many Cheltenham homeowners, this level of return makes solar and battery storage one of the most reliable long-term investments available.

The Installation

The installation was completed by GreenGenUK engineers Zak and Orley, who delivered a clean and professional setup using the Sigenergy SigenStor system.

The Sigen system offers:

• IP66 protection rating
• High efficiency hybrid inverter
• Modular battery expansion capability
• 10,000 cycle LiFePO4 battery chemistry
• 100% depth of discharge

It’s a premium system designed for long-term performance and future scalability.

Solar & Battery in Cheltenham – Growing Demand

We are seeing increasing demand across:

• Cheltenham
• Gloucester
• Tewkesbury
• Bishop’s Cleeve
• Winchcombe
• The wider Gloucestershire area

In fact, we are back in Cheltenham again this week surveying another upcoming project — one that’s shaping up to be very impressive.

Thinking About Solar & Battery in Cheltenham?

If you’re based in Cheltenham or anywhere in Gloucestershire and want to:

• Reduce electricity bills
• Protect against rising energy costs
• Increase property value
• Improve energy independence
• Integrate with EV charging or heat pumps

Our team can design a system tailored specifically to your home and energy usage.

📞 Call us on 0800 093 3299
📧 [email protected]
🌍 www.greengenuk.com

Or submit your details via our Get a Quote page and we’ll arrange a consultation.