How long can a solar panel last
Solar panels, on average, last between 25 and 30 years. This does not mean they stop producing electricity after 25 years; rather, it means that energy production has decreased by a significant amount, as determined by the manufacturers.
Solar panels will continue to function for many decades as long as they are not physically damaged by wind, debris, or other external factors. This is primarily due to the fact thatcontain no moving parts; they rarely fail from within and are typically damaged only by external forces such as a poor racking setup or inclement weather.
The Causes of Degradation
Modules made of crystalline silicon that are exposed to extreme climates degrade at a faster rate than those exposed to moderate climates. Panels exposed to heavy snow and wind tended to suffer the most in extremely cold climates. Similarly, panels installed on a façade in the same climate demonstrated extremely low degradation rates once the snow load was removed.
On the other end of the climate spectrum,s in desert climates demonstrated significant production declines over time (approximately 1% per year) due to high UV exposure. This is a significant decrease in comparison to moderate climates, where annual decreases are typically around 0.2 percent. After 20 years, panels in moderate climates typically retain 96 percent of their production capability.
How to Increase Their Life Expectancy
Solar panels are designed and constructed to withstand severe and unpredictable weather conditions for extended periods of time. This is why solar panels are so durable and require little to no maintenance over their lifetime. In general, if you keep the panels clean and in good condition, they should continue to operate at peak efficiency for an extended period of time.
Additionally, it is critical to monitor the panel output on a regular basis via the inverter or your monitoring system. This means that if the output is less than expected, you will be able to quickly determine why and restore your panels to peak efficiency.
Additionally, solar panels are only as good as their inverter. String inverters, on the other hand, have a shorter lifespan than solar panels (typically around 10-15 years). If your inverter prevents the maximum amount of energy from being processed, you will not get the maximum benefit from your solar panels. Maintain an up-to-date and functional inverter if you want to reap the full benefits of your solar panels.
If you have solar panels on your roof, then you can expect to enjoy them for the full length of their estimated lifespan. There are a few ways in which you can keep them well maintained, helping the efficiency levels to stay at their best. It is important to note that you only need to give your solar panels a good clean once or twice a year.