How Long Do Commercial Solar Panels Last? A Full Lifespan Guide
Switching to solar energy is a smart, sustainable investment—but how long will it actually last? In this guide, we’ll answer a question many businesses ask: how long do commercial solar panels last? Whether you're a small operation or a large enterprise, understanding the durability and long-term value of solar technology is key to making an informed decision. What Is the Average Lifespan of Commercial Solar Panels? Most commercial solar panels are built to last between 25 to 30 years. That doesn’t mean they stop working after three decades, but rather their energy output will gradually reduce. Panels usually deteriorate between 0.5% and 1% year. So, even after 25 years, your system may still be producing up to 75–85% of its original capacity. Many manufacturers offer performance warranties guaranteeing 80% efficiency for 25 years, giving business owners confidence in long-term performance. Do Commercial Solar Panels Need Maintenance to Last Longer? Y...