Maintenance and Warranties

The principal components of a solar electric system, including solar panels, solar mount, battery, and inverters, come with extensive manufacturer warranties. Solar panels and rooftop optimizers are usually warrantied for a span of 25 years, while inverters typically carry a warranty period of 10-12 years.

Solar panel manufacturers offer dual-layered warranties encompassing workmanship and power output. The workmanship warranty, ranging between 10 and 25 years depending on the manufacturer, provides coverage against material defects and premature deterioration of the physical panel.

In addition, most manufacturers offer a 25-year power output warranty, with a few extending this duration to 30 years. This warranty serves as a guarantee from the manufacturer that the panels will deliver their rated output throughout the warranty's lifetime.

It's a well-known fact that all solar panels undergo a predictable decline in power output over time. The power output warranty assures that the reduction in the solar panel's output will not exceed a certain percentage over the 25-year period.

These warranties are prorated, which implies that the solar panel should produce within 3% of its rated capacity in the first year, with a marginal decline in output each subsequent year over the warranty period. To better understand how these warranties function, we will provide an illustrative graphic during our meeting.

As we review your solar proposal, we will delve into the specifics of each manufacturer's warranty, aiding your decision-making process when selecting the appropriate solar panel for your rooftop. Our objective is to equip you with the necessary information to make a well-informed decision.