Quality solar panels are built to last. Most reputable brands come with a 25-year performance warranty, meaning the panels are guaranteed to still produce a significant percentage of their original output after 25 years.

In practical terms, solar panels degrade very slowly, typically around 0.5% per year after the first year. That means after 25 years, a good quality panel will still be operating at around 87% efficiency or better.

Inverters and batteries have shorter lifespans and may need to be replaced within 10 to 15 years, but the panels themselves are a long-term investment. Minimal maintenance is required, occasional cleaning to remove dust and bird droppings is usually all that is needed.

Want panels that are built to last? We only install trusted, high-quality components. See our solar panel installations or request a quote. Back to the main article: Solar Panels South Africa – What They Are, How They Work and Why Now Is the Time to Switch