Maintenance

Although a solar PV installation does not need a lot of attention to continually function correctly, it is prudent to review the system from time to time, especially if it does not have a monitoring system that will alert you of any issues that may arise with the system.

Williams Renewables recommend an annual inspection of the system by a technician to confirm it is in good working order and carry out any necessary preventative action to avoid future, unforeseen issues with the system.

An annual maintenance visit includes the following;

Visual inspection of components to include:

• Solar PV modules – check for any issues, including signs of damage or stress on the glass / frames / cabling / joints, where accessible
• Mounting system – inspect framework, fixing points and module clamps for integrity and security, where accessible
• Inverters – ensure correct general operation, display functionality and cable connections
• Generation meter – check meter display and function
• Cabling and connections from PV array to mains supply connection, where accessible

Testing to include:

• Electrical periodic testing of AC circuit(s)
• DC Array test report (where possible) (Voc / Isc / irradiance / insulation)
• Inverter protection compliance (G83/G59)
• Cleaning of inverter(s) to include:
• Clearing dust from heatsinks / air intakes
• Removing and clearing fans, where accessible

At the end of the inspection you will receive the following:

• Maintenance Report detailing the state of your installation
• Test certificates as detailed above
• Assessment of how your solar PV system is performing against original estimates is available