How long do solar panels last?

Racking systems for solar panels are also separate from solar panel warranties. These may incur damage from weather elements. Solar inverters generally last 10 to 15 years. This shortened lifespan is due to how hard inverters continually work to convert energy from the solar panels into usable electricity for your home.

How long do photovoltaic panels last?

The U.S. Department of Energy says photovoltaic (PV) modules should last about 30-35 years. Many panels keep making electricity much longer. Your panels won’t just stop working after 30 years. They’ll make less electricity gradually but stay functional.

How long does a solar inverter last?

Most people focus on the panels, but the inverter—the device that turns solar electricity into usable power for your home—usually doesn’t last as long. Standard string inverters typically last about 10 to 15 years, which means you’ll probably need to replace them at least once during your panel system’s lifetime.

Do solar panels still work after 25 years?

Studies such as those from the National Renewable Energy Laboratory (NREL) show that modern solar panels lose about 0.5% of their output per year on average. That means after 25 years, the panels are still working, just not quite as powerfully as when they were new.

How long do Tier 1 solar panels last?

Industry standards confirm that modern Tier-1 solar panels are built to last. While the common performance warranty guarantees strong energy output for 25 to 30 years, this is often just the beginning of a panel’s life.

How long will NREL solar panels last?

NREL’s median degradation rate of 0.5% means a typical solar panel system will still operate at about 90% of its original capacity after 20 years. Even with a higher degradation rate of 0.8%, your panels would keep about 84% efficiency after the same period. Some systems perform better than expected.