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

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Rawlinson – Solar System Upgrade

4.4kW Solar Extension, Battery Upgrade & Zappi EV Charger

This project involved enhancing an existing solar installation to significantly increase energy capture, storage capacity and electric vehicle charging capability for Rawlinson.

To improve generation, we installed 10 Jinko Solar Tiger Neo 440W panels using a Renusol roof mounting system. To maximise energy storage, a new Fox ESS ECS2900 v1 lithium battery was added to the existing stack.

We also supplied and installed a Fox ESS KH8 8kW inverter, a Myenergi Zappi untethered charger, a bird exclusion kit, and handled a new G99 application as part of the system upgrade.

The result is a more capable, flexible and future-proof renewable energy system that aligns with the client’s goal of reducing grid dependence and improving overall system performance.

Technical Information:

Solar Panels:Jinko Solar Tiger Neo JKM440N-54HL4R-B (440W)
Number of Panels:10
Inverter:Fox ESS KH8 (8kW)
Battery Storage:Fox ESS ECS2900 v1 – Added to existing stack
EV Charger:Myenergi Zappi Untethered Charger
Mounting System:Renusol Roof Mounting Kit
Additional Components:Bird Mesh, G99 Application, AC/DC Components


Project Gallery:

Cut Your Energy Bills - Start Today.

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

CALL 0191 340 7001


View more of our solar case studies.

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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To design and size your solar and/or battery system correctly, we need to know your annual kWh usage. This allows us to create a system that accurately matches your energy needs - reducing the electricity you buy from the grid, lowering your carbon footprint, and protecting you from rising energy costs so you save as much money as possible.

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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.