Protect generation, electrical condition and the long-term value of the asset.

Solar PV is low maintenance — not no maintenance

Inverter faults, damaged components, isolation issues, loose connections, monitoring failures, shading changes and soiling can reduce output or create avoidable risk. A planned review makes those issues visible before they become a larger operational problem.

Maintenance support can include

• Visual condition inspection
• Electrical inspection and testing where appropriate
• Monitoring and performance review
• Fault investigation and diagnostics
• Panel cleaning where site conditions justify it
• Inverter and component replacement
• Remedial electrical work
• Condition reporting for owners, landlords and insurers
• Review of inherited or poorly documented installations

Maintenance frequency should be risk-based

The Electricity at Work Regulations 1989 require electrical systems to be maintained so far as reasonably practicable to prevent danger, but they do not prescribe a universal annual test interval. The appropriate maintenance plan should reflect the installation, environment, manufacturer guidance, previous inspection results, insurer requirements and operational importance of the system.

Performance matters too

We compare monitoring information with expected behaviour to help distinguish normal seasonal variation from genuine underperformance. Where faults are identified, the report can prioritise safety-critical, generation-critical and longer-term remedial actions.