Solar Panel Maintenance Tips: Everything you need to know

Solar panel systems are incredibly durable and require little to no maintenance over their 25+ year lifetime. They require minimum maintenance other than periodic cleaning and keeping them free from obstacles that can cast shadows over the panels. Solar panels need an unobstructed path to the sun to operate optimally. Solar panels are designed to withstand extreme weather events like hail, snow, ice and wind to provide lasting performance.

Need for Solar panels maintenance

Solar panels are designed to withstand extreme weather events like hail, snow, ice, and wind to provide lasting performance. A damaged, dirty, or malfunctioning solar system won’t perform well. It’s important to track the energy output of your solar panels closely. Typically a prolonged drop in production signals a maintenance need.

Maintenance Tips

Schedule regular cleaning 

To keep solar panels in good condition, you must clean them at least twice a year: one at the end of fall and another at the start of winter. If they’re installed in an area with a high dust, pollen, or dirt concentration, it’s recommended to clean them more often, for example every three months.

Cleaning Solar Panels in Winter

Sometimes snow and ice can accumulate on solar panels but since they’re angled, it usually melts and slides off. Spraying panels with lukewarm water can help remove snow and ice.

Avoid using hot water to clean snow and ice from solar panels because the temperature discrepancy can cause the panels to crack. You can also brush the panels off with something non-abrasive to prevent scratches.

Avoid Abrasive Cleaning Tools and Chemical Agents

You should never clean solar panels with roof rakes, hard brushes or other tools that may scratch their surface. Also, avoid chemical cleaning agents since they can also cause damage. Soft brushes and squeegees are suitable for solar panel cleaning, or you can use a leaf blower or garden hose.

Carry out a visual inspection

Before starting, visually inspect the solar panels to identify possible damages such as cracks, breaks, or loose connections. If you detect any problems, contact a professional to do the necessary checks and repairs.

Dry the panels

You can let the solar panels air-dry, or you can use soft cloths. The most important thing is that no water residue remains that may affect the efficiency of the panels.

Monitoring

For proper maintenance, record the date you clean the solar panels, and schedule the next one. This will allow you to properly monitor and maintain the installation in optimal conditions.

Extendable handle

PV installations are usually located on roofs, so it’s convenient to use a telescopic pole or extendable handle to reach higher and more difficult areas. Safety is a key to prevent possible accidents. If you can’t clean the solar panels yourself, hiring a specialized professional service is recommended.

Check Electrical Components

Inspect the wiring and electrical components for any signs of wear or corrosion. Loose connections or damaged wiring can impact the efficiency and safety of your solar power system. 

Pest Control

Birds, squirrels, and other pests can cause damage to solar panels and wiring. Implementing measures such as installing mesh or netting around the panels can prevent pests from causing harm. 

Benefits of Regular Maintenance

1. Increased Efficiency

Regular maintenance helps keep your solar panels operating at their highest efficiency, ensuring you get the most out of your investment. By keeping the panels clean and free from obstructions, you can maximise energy production.

2. Extended Lifespan

Proper care and maintenance extend the lifespan of your solar panels. Investing time in regular inspections and cleaning can help prevent costly repairs and replacements down the line.

3. Cost Savings

Maintaining your solar panels can save you money in the long run. By ensuring your system operates efficiently, you can reduce your energy bills and avoid unexpected repair costs.

4. Environmental Benefits

Efficient solar panels reduce the need for traditional energy sources, decreasing your carbon footprint. Regular maintenance ensures your panels contribute to a cleaner, greener environment.

Cost of maintaining Solar panels

Fortunately, annual solar panel maintenance costs are pretty low, considering how infrequently it’s needed. The cost of professional solar cleaning services can vary depending on your location and the size and complexity of your system. DIY cleaning is feasible if you have a ground-mounted system or an easy-to-access flat roof. But due to the risks involved, professional cleaning services are recommended for solar energy systems on sloped roofs. 

Conclusion

The beauty of solar panels is their simplicity. In fact, photovoltaic solar is the only source of electricity that doesn’t involve spinning a turbine. Taking care of your solar panels is crucial to ensure their longevity and efficiency. Maintenance of solar panels is easy and inexpensive. While in most cases, homeowners will just need to clean the solar panels on a monthly or quarterly basis, it is important to understand all the maintenance activities and perform them as it is intended to get the most out of them.