Solar panels are built for long-term use, and most modern systems are designed to keep producing electricity for decades.
That does not mean a panel suddenly stops working after 25 or 30 years. Instead, solar panels gradually produce a little less electricity as they age.
What Is Solar Panel Degradation?
Solar panel degradation is the gradual reduction in power output that happens over time.
The exact rate depends on the manufacturer, panel technology, climate, and installation conditions. That is why it is more useful to review the specific performance warranty for the equipment being installed than to rely on one general industry number.
Even after a panel reaches the end of its warranty period, it may continue producing useful electricity for many years.
What Affects Solar Panel Life?
Solar panels spend their entire working life exposed to sun, heat, wind, snow, hail, and changing temperatures.
Quality equipment and a properly designed mounting system help protect the array from those conditions. Installation quality matters too. Panels, racking, wiring, and other system components all need to be installed correctly for the system to perform reliably over the long term.
Can You Help Your Solar Panels Last Longer?
Solar panels themselves generally require very little routine maintenance.
One of the best things you can do is keep an eye on system production. If output drops unexpectedly, your monitoring system shows an error, or you notice visible damage, it may be time to have the system inspected.
There is usually no reason to climb onto a roof for routine cleaning or inspection. If a rooftop system needs service, it is safer to have qualified personnel handle it.
Learn more about solar panel maintenance.
A Long-Term Investment
When evaluating solar, the panel warranty is important, but it is only one part of the picture.
Equipment quality, system design, installation, manufacturer support, and service after the installation all play a role in how well a system performs over its lifetime.
High Noon Solar has been installing and servicing solar systems in Western Colorado since 2005, and we can help you understand what to expect from your system for years to come.