How to Make Your Solar Panels Last Longer Than 25 Years
Solar panels are expensive, even after tax incentives. But the good news is that they last a very long time. (We’re talking decades here.) It’s not uncommon for a solar panel to last around 25 years . If you are planning to install a solar power system or already have one, you may be wondering, “How can I make sure these devices last?”
How long can solar panels last?
Thanks to recent developments , solar panels can last a very long time. New systems come with a 25-year warranty. But the materials used in the panel, glass and aluminum, are strong enough that they can sometimes last 30, 40 or even 50 years.
What fails is the electrical components, and in many cases it is the fault of the inverter that converts DC power to AC power. But this can be replaced without even removing the panel itself. The solar panel itself is modular, so you can replace individual electronic components that fail. If you keep doing this, the panel itself can last for decades. (But is this the same solar panel you originally bought, Plutarch asks ?)
The elements inside a solar panel decompose quite slowly. The degradation rate of most panels is about 0.5% per year , and if degradation occurs faster, it is covered by the warranty. Most panels do not deteriorate that quickly. Even at the median rate, your panel should still be producing 90% of its original output after 20 years. The world’s first modern solar panel was still producing power at the age of 60, at least as of 2010 .
How to extend the life of solar panels
Here are a few steps you can take to ensure your solar panels last longer than 25 years.
Use a reliable installer
When it comes to solar panels, there are few choices. There is no magical “Pro Max” version of solar panels that will work better for you. Solar panels are almost the same.
Instead, you should focus on finding a reliable installer. Ask for a personal recommendation or find the best option in your area. And don’t be afraid to ask questions to find out if they know what they’re talking about. Consider asking something like:
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How long have you been in business?
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Which components are covered by the warranty and for how long?
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What happens if part of my system fails?
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Can you calculate the total cost of my system?
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How can I monitor the performance of a solar panel?
During installation, ensure that the panels are installed at the correct angle for optimal power generation. Choose an angle that will receive the most sunlight throughout the year.
Clean it regularly
A layer of dust will reduce the effectiveness of your panels and can cause component damage over time. Be sure to clean the panels regularly. You cannot walk on the panels, but you can water them with a hose. You can also use a broom to sweep away debris, just make sure you don’t apply too much pressure.
Monitor regularly
To know how the panels work, you should monitor their power output from time to time. Solar energy systems are passive and are equipped with a safety automatic shut-off switch. This may work during power surges, or your children may do it accidentally.
It is best to monitor the telemetry display to ensure that the power system is on and producing electricity at the correct and constant rate. If not, then it’s time to get tested.
Regular maintenance will go a long way
Although a solar panel will last 25 years or more, it may not last if you plan to just leave it alone for 25 years. Panel-related technologies, such as wires and electrical components, require maintenance and replacement from time to time, so you should schedule regular inspections of your solar panel system.