Maintaining your Solar System

“Strategically, we seek to perform such annually scheduled work in the mid-Spring of each year.”

Routine! Routine! Routine!

The secret to maintenance of a solar PV system, and any technical system, is a regular and consistent maintenance regime.

Hecate Energy follows component manufacturers published lists of required equipment services as part of a preventative maintenance program. Factory or independently qualified technicians are used to perform these services. Scheduled maintenance is typically performed annually on inverters, wiring and electrical switchgear. Panel component maintenance is comprised primarily of cleaning and mounting integrity checks and is also scheduled on an as needed basis. Strategically, we seek to perform such annually scheduled work in the mid-Spring of each year. This enables us to clean the panels, post-pollen season, and prepare all systems for optimal performance as we enter the longest sun-hour period of the year (March – September). Depending on the size of your system this can take 1-2 days to complete.

Regular Maintenance
• On site visual inspection of system.
• Assess general site conditions and safety (looking for signs of tampering, vandalism, theft, environmental hazards, storm debris).
• Visual inspection of panels for integrity.
• Visual inspection of adhesion quality, slip-sheet integrity and general roof membrane conditions.
• Visual inspection of wiring, bonding and wire management system (looking for signs of wear, damage or tampering).
• Log of inspection findings and corrective action taken.

Semi-Annual maintenance
Perform monthly maintenance tasks and in addition:
• Check inverter output compared with expected output based upon pyranometer and temperature readings.
• Visual internal check of inverters.
• Visual check of key electrical connections, including: inverter electrical connections, combiner box electrical connections and disconnect electrical connections.

Annual Maintenance
Perform monthly and semi-annual tasks and in addition:
• Surface clean all modules and check for damage
• Open all serviceable equipment (inverters, combiners and disconnects) and check and torque all electrical terminations.
• Check open circuit voltage of each string.
• Check operating current of each string.
• Log all performance-based findings and compare to commissioning report.
• Produce report summarizing all performance data and corrective actions performed on the system.

About Post Author

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Alexander Pugh is the HecateSOLAR LA project lead where he manages project development, investor relations, project scheduling, partnerships and supports sales. Alex has been working in the renewable energy industry for more than 11 years in roles that include public policy and corporate strategy.

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