The cost of doing nothing
Commercial solar systems are built to last 25+ years, but without regular maintenance faults go undetected, generation drops and your return on investment quietly erodes.
Lost Generation = Lost Revenue
An underperforming inverter, a faulty DC string or a shaded module can reduce output by 10–20% without triggering an obvious alarm. Over a year, that is thousands of pounds in lost savings or export income you will never recover.
Warranty Protection
Most equipment warranties require evidence of regular professional maintenance. Skipping your annual PPM can void the cover you're relying on, leaving you exposed if a major component fails outside the warranty period.
Insurance Compliance
Most commercial insurers now align their requirements with Solar Energy UK's recommended inspection frequency. An annual PPM by a qualified engineer is not just good practice. For many policies it is a condition of cover.
Safety & Due Diligence
Electrical faults in PV systems are a known fire risk. Regular thermal imaging and electrical testing identifies developing defects early, giving you documented evidence of due diligence and peace of mind that your system is safe.
Solar Energy UK recommends annual PPM for all commercial installations.
Most commercial insurers have now aligned their requirements with this standard.