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Pugh – Peterlee Solar Installation (2025)

7kW Solar PV System with Fox ESS 13.93kWh Battery Storage

Sustainable Energy Engineering Ltd installed a powerful 7kW solar PV system for the Pugh household in Peterlee, complete with a Fox ESS hybrid inverter and a high-capacity 13.93kWh battery system. This installation provides excellent day-to-night energy utilisation, supporting long-term reductions in grid reliance and household bills.

The JA Solar DeepBlue 500W panels deliver strong output across the year, while the Fox ESS ECS4800-H3 battery ensures maximum use of generated solar energy. Full bird protection and safe-access scaffolding were included as part of the installation package.

Technical Information:

Solar Panels:JA Solar DeepBlue 4.0 Pro 500W
Number of Panels:14
Inverter:Fox ESS H1-6.0-E-G2 (6.6kW)
Battery Storage:Fox ESS ECS4800-H3 (13.93kWh / 12.54kWh usable)
Mounting System:Renusol Roof Mounting Kit
Additional Components:Bird Mesh, Scaffolding, Generation Meter, AC Isolators, Crawl Boards


Installation Data

Installed Capacity7 kWp
Orientation85°
Inclination30°
Postcode Region10
Kk Value743
Shade Factor1.00
Estimated Annual Output5,200 kWh
Battery Usable Capacity12.54 kWh
Self-Consumption (With Battery)2,080 kWh
Self-Sufficiency (With Battery)34%


Utility Costs Impact

Average Monthly Bill (Before Solar)£143.98
Average Monthly Bill (With Solar)£59.90
Annual Bill (Before Solar)£1,727.78
Annual Bill (With Solar)£718.79
Estimated Annual Savings£1,008.99
Total Bill Reduction58%


25-Year Financial Summary

Net Present Value (NPV)£15,724.36
Discounted Payback Period9–10 years
Internal Rate of Return (IRR)11.9%

NPV Explained: Net Present Value measures the true lifetime financial gain after accounting for inflation. A positive NPV confirms long-term value.

Discounted Payback Explained: This accounts for inflation-adjusted cashflows, showing a realistic payback timeline.

IRR Explained: IRR represents the annualised return of the solar investment. An IRR above typical savings rates indicates a strong investment.



Project Gallery:

Cut Your Energy Bills - Start Today.

2,000+ Solar Installs Completed in the North East.

CALL 0191 340 7001


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We've helped homeowners across the North East cut energy bills and reduce carbon emissions with bespoke domestic solar systems, from family homes to larger residential properties. Alongside this, we've delivered projects for schools like Cragside and Dame Dorothy, community hubs such as Kibblesworth Millennium Centre and Alnwick Community Centre, local cafes, churches, and even national brands like Burger King. With major installs for organisations including Darlington College, Phillips Pet Supplies, and Collingwood Healthcare Services, our portfolio shows proven expertise across both domestic and commercial solar - providing tailored installations that deliver long-term savings and sustainability.

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With hundreds of five-star reviews since 2006, Sustainable Energy Engineering has built a reputation for quality, honesty, and reliability. Unlike many short-lived installers, we're here for the long haul - ready to support you long after installation. That's why so many customers choose us after their original installer disappears. Choose us for peace of mind, fair pricing, and expert solar solutions that last.