Average Lifespan of Solar Panels

The average lifespan of solar panels is one of the most common questions that many people installing the systems have to ask. As homeowners and business owners are progressively changing over to the idea of solar power it is important to determine the average lifespan of a solar cell. Solar panels often last for around 25 years and this doesn’t mean that the panels on your roof will stop producing electricity, rather that after this point the energy production from the solar cell may start to decrease depending on the solar power manufacturers guarantee. Specific maintenance may be required in order to prevent degradation from happening early on and this can affect the overall lifespan of your solar system as well as limit efficiency and performance. 

Why a Standard Warranty is So Important

There are many solar manufacturers and installation professionals that will offer a standard warranty on solar panels. The length of the warranty often shows what the manufacturer estimates to be the life expectancy of that panel. Standard warranties on many solar panels are around 25 years and during this time manufacturers can guarantee that the panels are going to operate at their peak efficiency. Most warranties can guarantee around 80% of the rated output on their product. This means that if a panel is certified to produce up to 300 W warranty will cover at least 240 W for the rest of the 25 years. There are some companies that stand behind the panels that guarantee up to a 90% efficiency. The warranties on other equipment beyond the panels including the inverter and monitoring equipment will vary and they often come with a shorter time period. 

Solar Panels and Their Degradation

There are many reasons why solar panels can degrade faster than you would expect. A solar panel that’s exposed to extreme changes in climate may experience ongoing and heavy soiling. A solar panel that’s installed improperly may also have the same type of higher rate of degradation. Based on the superiority of the technology that’s used in the manufacturers that are producing solar panels, you can get access to improvements for your solar installation. 

Installation Problems

To extend the overall lifespan of a solar power system it’s important to look at the most essential aspects of what makes a solar panel work. Most solar panels are built for durability and they are not prone to defects. When you’re first connecting your solar panels you need to be especially careful, make sure that you’re using a trusted installation professional and arrange the solar panels in a way that they are going to access sunlight in the most efficient manner. Take into account the condition of the roof underneath as well. If an installer does not correctly assess your roof and there are leaks or other serious problems, this could cause ongoing issues in the future. 

Weather Factors

When solar panels are forced to weather several storms this can often lead to the anti reflective glass coating that covers the solar panel to start losing its structural integrity. Large hailstones can also continually damage the glass. Many manufacturers will test and certify that their parts can withstand hail storms and inclement weather conditions but it will often come down to choosing the right panels for the climate you are in. 

You can work at extending the lifespan of your solar panels by working with a qualified solar installation team! Contact ESD Solar today to begin experiencing the vast benefits Florida solar has to offer!

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