Solar Panel Upgrades, Optimisation & Microinverters in Wales & South West England
If your solar system isn’t performing as well as it used to or your original installer is no longer trading, Solar Plants Maintenance LTD can help.
We specialise in solar panel upgrades, system optimisation, and microinverter conversions, improving generation, safety, and monitoring on both residential and commercial systems.
Why Upgrade Your Solar PV System?
Many older solar systems use outdated string inverters or lack individual panel monitoring. Upgrading to modern inverter technology or power optimisers can:
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Increase generation by up to 25%
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Improve shading and mismatch tolerance
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Extend system lifespan and reliability
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Provide detailed performance data for each panel
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Meet current G98/G99 compliance standards
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Our Solar Upgrade Options
SolarEdge Optimisation Systems
We supply and install SolarEdge inverters and power optimisers, allowing each panel to perform independently.
This means no more energy loss due to shading or underperforming modules, and full system monitoring through the SolarEdge app.
Enphase Microinverter Systems
With Enphase microinverters, each solar panel operates as its own AC unit, maximising safety and output.
Ideal for shaded or complex roofs, microinverters are reliable, flexible, and backed by long warranties.
Hybrid & Battery-Ready Upgrades
We can also prepare your existing system for battery storage integration — combining energy optimisation with future-proof energy management.
Our Upgrade Process
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System Inspection – We assess your current setup, inverter type, and generation history.
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Performance Review – We identify faults, shading issues, or inefficiencies.
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Upgrade Proposal – We recommend compatible technology (SolarEdge, Enphase, etc.) and provide a clear quotation.
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Installation & Testing – We complete the upgrade safely, test performance, and reconnect your monitoring.
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Aftercare – You’ll receive documentation, system data, and optional maintenance packages.
Areas We Cover
We provide professional solar panel upgrades for SolarEdge and Enphase systems across Wales and South West England, including Cardiff, Swansea, Newport, Bridgend, Bath, Bristol, Gloucester, Cheltenham, Hereford, Carmarthen, and surrounding areas.
Our mobile team operates within roughly a two-hour radius of Swansea or Bristol, allowing us to serve homes, businesses, and solar farms throughout South and West Wales and the South West of England.
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