Consider a professionally installed monitoring system if you want to track your solar panel performance more closely. When performance drops, the system monitors which panels aren’t working properly and identifies panels that need repair. Most professional panel monitoring systems require a monthly subscription fee.

The State of California maintains a list of authorized performance monitoring providers.

NOTE: If a leasing company or power purchase provider owns your system, performance monitoring and reporting may be included in your contract. Read your contract for specific terms and conditions.

Dirty solar panels can significantly reduce the amount of energy your home generates. Sources of dirt include dust and soot from nearby roads, bird waste and debris from rainy or dry weather conditions. Fortunately, ensuring that your solar panels are maintained properly is under your control.

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PG&E suggests that you have your panels inspected every two years, or when you notice a significant drop in performance during clear weather. Only a licensed professional solar contractor should perform system maintenance and inspections. Solar panel inspectors check for the following conditions:

• Twigs and leaves on or underneath panels
• Loose screws and wires
• Cracked or stained panels
• New tree growth or other obstructions shading panels

NOTE: If a leasing company or power purchase provider owns your system, maintenance might be included in your contract. Read your contract for specific terms and conditions.