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Your solar panels aren't working as well as they used to. What can you do to improve their performance?

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Solar panels are a great way to harness renewable energy from the sun and reduce your carbon footprint. But over time, they can lose efficiency and produce less power than they used to. This can be due to various factors, such as weather, dust, degradation, shading, and wiring issues. Fortunately, there are some ways you can improve your solar panels' performance and extend their lifespan. Here are some tips to help you get the most out of your solar system.

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1 Clean your panels

One of the simplest and most effective ways to boost your solar panels' performance is to keep them clean. Dust, dirt, bird droppings, and other debris can accumulate on the surface of your panels and block some of the sunlight from reaching the cells. This can reduce the output and efficiency of your system by up to 25%. To clean your panels, you can use a soft brush, a hose, and some mild soap. Avoid using harsh chemicals, abrasive materials, or pressure washers that can damage your panels. You should also check the manufacturer's instructions and warranty conditions before cleaning your panels. Ideally, you should clean your panels at least once or twice a year, or more often if you live in a dusty or polluted area.

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Pankaj Vashishtha

Senior Manager (HR)
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take following steps to improve performance like ensuring proper cleaning of the module, check for shading, inspection for any damage ,checking for proper connection issue and monitoring performance parameters over a time period to correlate with exact cause

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2 Check for shading

Another factor that can affect your solar panels' performance is shading. Shading occurs when something blocks the sunlight from hitting your panels, such as trees, buildings, chimneys, or other structures. Even a small amount of shading can have a significant impact on your system's output, especially if you have a string inverter that connects all your panels in series. If one panel is shaded, it can reduce the power of the whole string. To avoid shading, you should install your panels in a location that receives maximum sun exposure throughout the year. You should also trim any branches or vegetation that might cast a shadow on your panels. You can use a solar pathfinder or a smartphone app to measure the sun's position and identify potential shading sources.

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3 Monitor your system

Another way to improve your solar panels' performance is to monitor your system regularly and track its output. This can help you identify any problems or faults that might affect your system's efficiency and reliability. You can use a monitoring device or software that connects to your inverter and displays your system's data, such as voltage, current, power, energy, and temperature. You can also compare your system's performance with the expected output based on your location, orientation, and tilt angle. If you notice any significant drops or fluctuations in your output, you should contact your installer or service provider and have them inspect your system.

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4 Upgrade your components

Another option to improve your solar panels' performance is to upgrade some of your components to newer or more efficient models. For example, you can replace your old or faulty inverter with a more advanced one that has a higher conversion rate and better features. You can also add optimizers or microinverters to your system that can increase the output of each panel individually and reduce the impact of shading or mismatch. You can also install a battery storage system that can store the excess energy you generate and use it later when you need it. Upgrading your components can increase your system's performance, resilience, and value, but it can also be costly and complex. You should consult with your installer or service provider and weigh the benefits and drawbacks of each option.

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Pragati Gahlout, Ph.D.

Materials Science
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By following the step of cleaning and maintaining the grid system we can optimise the performance. It’s also important to check the life of solar panels in case of Silicon solar cells the life should be around >20 years. But other type of solar cells have limited life time as compared to silicon.

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5 Maintain your panels

Finally, one of the best ways to improve your solar panels' performance is to maintain them properly and regularly. Maintenance can help you prevent or fix any issues that might affect your system's operation and safety. You should inspect your panels for any cracks, chips, or corrosion that might damage the cells or the glass. You should also check the wiring, connectors, and mounting systems for any loose, broken, or worn parts that might cause electrical or fire hazards. You should also follow the manufacturer's recommendations and schedule for maintenance and service. You should also keep a record of your system's performance, maintenance, and warranty details. Maintaining your panels can help you extend their lifespan and ensure their optimal functioning.

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Purniah Boddapati

Retired from Department of Atomic Energy HQ at Mumbai
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This is the best way to maintain your system. This covers all aspects of system maintenance. Keeping records is also an important aspect.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Your solar panels aren't working as well as they used to. What can you do to improve their performance?

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3

4

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1 Clean your panels

2 Check for shading

3 Monitor your system

4 Upgrade your components

5 Maintain your panels

6 Here’s what else to consider

Materials Science

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