It is no surprise that panels lose efficiency in the long run. However, with the system design, the solar company also ensures you an amount of system output that you can expect. The system’s electrical output shall not decrease by more than 10% during the 10 years and 20% for the other 15 years.
We only work with insured partners who are licensed to install and maintain the system. We provide a Solar System Warranty, Roof Warranty and Output Warranty for the entire agreement term.