Solar PV energy is one of the cleanest sources of energy available today and quite affordable in the long term. That is why, as of March 31, 2024, India’s total installed rooftop solar generation capacity stands at 11.87 gigawatts (GW). More and more Indian households are installing solar PV panels to reduce their dependence on traditional power sources and save money. The availability of sunlight for around nine months a year is propelling this growth further. Also, solar panel manufacturers are providing PV panels at affordable prices which is another reason for increased demand for solar energy in India.
But like any other power generation source, solar panels need regular maintenance to keep them efficient. If you are planning to install solar power at home or already using it, this post will explain everything you need to know about proper maintenance of solar panels.
But first, let’s discuss why they require proper maintenance.
Regular Cleaning is Key
One of the most crucial tasks in maintaining solar panels is to keep them clean. Over time, the accumulation of dirt, dust, leaves, and bird droppings can block sunlight from reaching the surface and reduce the panels’ energy generation capacity.
Why Solar Panels Require Regular Maintenance?
Solar panels consist of glass and semiconductor wires. When sun rays hit the surface of a PV panel, electrons start moving, producing electricity. The generation of electricity depends on the clarity of the surface. The cleaner the surface, the more efficiently it will work. For instance, 6.0986 g/m² of dust accumulation on a PV panel surface can reduce output by 21.47%. Other factors also impact power generation, so solar panels need constant maintenance.
Let’s discuss everything about solar PV panel maintenance in detail.
How Often Should You Clean?
It’s generally recommended to clean your solar panels at least two to four times a year. However, if you live in a particularly dusty area or have nearby trees that shed leaves, you may need to clean them more frequently. After heavy rain or storms, it’s also a good idea to check your panels for debris.
Cleaning Techniques
- Use Soft Brushes: When cleaning your panels, opt for a soft-bristle brush or a microfiber cloth to avoid scratching the glass.
- Water Only: Ideally, use distilled or deionised water to prevent mineral deposits. If necessary, you can mix a mild soap solution.
- Safety First: If your panels are on the roof, consider using an extendable pole or hiring professionals for cleaning to avoid accidents.
Monitor Performance Regularly
Always keep an eye on your solar system’s energy production. A sudden drop in output can indicate that your panels need cleaning or maintenance.
How to Monitor?
Many modern solar systems come equipped with monitoring tools that provide real-time data on performance. Regularly check these readings and be alert for any unusual drops in output. If you notice a significant decline, it might be time for a thorough cleaning or professional inspection.
Inspect for Damage
Regular inspections are essential to find potential issues before they escalate into costly repairs. After severe weather events like dust storms or hail, inspect your solar panels.
What to Look For?
- Cracks or Chips: Check the surface of each panel for any visible damage.
- Loose Connections: Make sure that all wiring and connections are secure.
- Debris Underneath: Look beneath the panels for any debris that could obstruct airflow or cause damage.
Use binoculars to conduct a visual inspection from the ground without needing to climb onto your roof.
Trim Nearby Foliage
Overhanging branches or nearby trees can cast shade on your solar panels, reducing their efficiency. Regularly trim any foliage that might obstruct sunlight from reaching your panels.
Benefits of Trimming
- Maximises Sunlight Exposure: Trim tree branches to ensure that your PV panels receive maximum sunlight throughout the day.
- Reduces Debris Accumulation: Less foliage means fewer leaves and twigs landing on your panels, which can block sunlight and require more frequent cleaning.
Check Inverter Functionality
The inverter is a critical component of the solar energy system as it converts the DC electricity generated by the panels into AC electricity used in your home. Regularly check that it’s functioning properly.
Signs of Inverter Issues
- Error Messages: Many inverters have built-in monitoring systems that will display error messages if something is wrong.
- Reduced Energy Output: If you notice a considerable drop in energy production and your panels are clean, it could indicate an inverter issue.
If you suspect problems with your inverter, consult with a solar panel technician who can diagnose and repair any issues.
Consider Professional Maintenance
While a few maintenance tasks can be done by homeowners, hiring professionals for periodic inspections and cleaning can provide peace of mind and ensure everything is functioning optimally.
Why Go Professional?
- Expertise: Professionals have the knowledge and experience to identify potential issues that may go unnoticed.
- Safety: Working on roofs can be dangerous; hiring experts ensures safety while maintaining your system.
- Thorough Cleaning: Professionals often have access to specialized equipment that can provide a deeper clean than standard methods.
Keep Records of Maintenance
Maintaining records of all cleaning and maintenance activities can help you track what has been done over time and when it’s time for the next service.
Benefits of Keeping Records
- Warranty Compliance: Some warranties require regular maintenance; keeping records ensures compliance.
- Performance Tracking: Documenting performance over time helps identify trends that may indicate underlying issues.
Proper maintenance is essential for keeping your solar PV panels efficient and prolonging their lifespan. By regularly cleaning them, monitoring performance, inspecting for damage, trimming foliage, checking inverter functionality, considering professional help when needed, and keeping detailed records, you can ensure that your investment continues to pay off for years to come.
If you’re looking for expert guidance on maintaining your solar energy system or need assistance with any aspect of solar panel care, don’t hesitate to reach out to Inter Solar, a leading solar panel manufacturer that can help you maximize the efficiency of your solar power system so you can enjoy all the benefits it has to offer.
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