5 Common Solar Panel Issues and How to Fix Them

Solar panels are a great way to save on energy costs while contributing to a cleaner planet. But, like any technology, they can encounter issues from time to time. Here are five common problems you might face with your solar panels and some simple steps to fix them.

1. Reduced Energy Output

Why it Happens: Dust, dirt, bird droppings, or nearby trees shading your panels.

How to Fix It:

• Clean Your Panels: Use a soft brush or hose to gently wash off dirt and grime. Avoid harsh chemicals.
• Trim Nearby Trees: Keep panels clear of shade for optimal performance.
• Check Performance: Use your solar monitoring app to ensure your panels are generating the expected energy. If not, consult an expert.

2. Faulty Inverter

Why it Happens: The inverter may wear out over time or face electrical issues.

How to Fix It:

• Look at the inverter’s display for error messages or warning lights.
• Try restarting the inverter by turning it off and back on following the manufacturer’s instructions.
• If issues persist, contact a qualified technician to repair or replace the inverter.

3. Hot Spots on Panels

Why it Happens: Damaged solar cells or bad connections can create concentrated heat spots, reducing efficiency.

How to Fix It:

• Check for visible damage like discoloration or cracks on the panels.
• Report any hot spots to your installer and arrange for repair or replacement.
• Schedule regular maintenance to catch issues early and keep panels working efficiently.

4. Weather Damage

Why it Happens: Hailstorms, heavy winds, or other severe weather can damage panels or loosen their mounts.

How to Fix It:

• Inspect Panels After Storms: Look for cracks, dents, or loose fittings.
• Install Protective Measures: Consider hail-resistant coatings or tempered glass for added durability.
• Secure Panels: If bolts or mounts are loose, tighten them to prevent further damage.

5. Micro-Cracks

Why it Happens: Tiny fractures in the solar cells, often caused by temperature changes or mishandling during installation.

How to Fix It:

• Micro-cracks are tricky to spot. If your panels aren’t performing as expected, call a professional to inspect them.
• Prevent future issues by avoiding walking on panels or placing heavy objects on them.

Tips for Long-Term Efficiency

• Regular Maintenance: Have your system inspected annually by a professional.
• Keep an Eye on Performance: Use your monitoring app to track energy production.
• Invest in Advanced Monitoring: Systems like SolarEdge let you monitor individual panels to detect and fix problems quickly.

By addressing these common issues and following these tips, you can ensure your solar panels keep delivering clean energy for years to come.