How long do solar panels last?

Since solar panels are generally a long-term investment, production guarantees are commonly offered for 10-to-30 years. Guarantees often step down over time, for example guaranteeing 90% of a certain production amount at 10 years and 80% at 20 years.

What is a solar power production guarantee?

Solar power production guarantees are a great way to help close and maintain new client relationships. They let customers know that you stand by the quality of your products and services, and that they’re designed for decades of efficient use. The key is: They have to be accurate.

Do solar panels have a warranty?

Production guarantees cover power production, not the physical assets involved in solar production. Most solar installers also offer equipment warranties of up to 25 years on parts like panels, inverters, and racking systems.

How long do solar warranties last?

Performance Guarantees are 10-25 years, depending on the manufacturer. When exploring if solar is right for you, it is always good to review your warranties and guarantees with an industry professional. We at Solar.com take a detailed look at your offers and advise you on your solar project.

Do solar panels need to be changed over 25 years?

The one component that will probably need changing over the 25-year lifespan of the panels is the inverter (which converts the DC output of a photovoltaic panel into the AC required by local and commercial power grids), which costs an average of £1000. Solar panels are exposed to dirt, debris and pollution.

How long does a power supply warranty last?

Manufacturers offer warranties of varying lengths. On average these consist of: 10-year limited product warranty (materials and labour). 25-year limited power warranty (typically 10 years at 90% power output and 25 years at 80% power output). Workmanship and materials warranty of one or two years.