What Maintenance Do Solar Panels Need in 2025?

One of the biggest advantages of solar energy is that it requires very little maintenance. But that doesn’t mean you can completely forget about your system. At RenovaEnergy, we explain what your solar panels need in 2025 to keep operating at peak efficiency for decades.

How often should solar panels be checked?

We recommend at least one professional check-up per year to inspect the system, spot any issues, and ensure optimal performance.

Recommended basic maintenance

• Cleaning the panels: Remove dust, leaves, or bird droppings that block sunlight.
• Inverter check: This is the system’s brain and must be functioning properly.
• Visual inspection: Check cables, mounts, and protection systems for any visible wear.
• Monitoring performance: Use your monitoring system to make sure everything is running as expected.

Do I need a professional for this?

You can handle basic cleaning if you have safe access, but RenovaEnergy always recommends that at least one annual review be done by a qualified technician to guarantee safety and long-term efficiency.

What happens if I skip maintenance?

Without maintenance, a solar system can gradually lose performance. Accumulated dirt, faulty inverters, or loose cables can reduce your production by up to 15%.

How much does solar panel maintenance cost?

It depends on the system size and type of service, but here are some reference prices:

• Basic cleaning: €50 – €100
• Annual professional check-up: €80 – €150
• Full maintenance service: From €100/year including technical support

Does RenovaEnergy offer maintenance?

Yes. We offer custom maintenance plans for homeowners and larger solar systems alike. Whether or not your system was installed by us, we’ll help you keep it running like new.

Not sure if your system is working at full capacity? Contact RenovaEnergy and we’ll help you get the most out of your solar power.