Get Sunpower Invisimount

Which Type of Solar Panel Lasts Longest? Both monocrystalline and polycrystalline silicon solar panels last for a long time, with lifespans that go beyond their 25-year warranties.

The estimated operational lifespan of a PV module is about 30-35 years, although some may produce power much longer.

SunPower panels typically cost $3.30 a watt at a minimum while the average cost is closer to $3 a watt nationally. SunPower systems range in cost before incentives from $12,500 for a four kW system to more than $39,000 for a 12 kW system.

The industry standard for most solar panels' lifespans is 25 to 30 years. Most reputable manufacturers offer production warranties for 25 years or more. The average break even point for solar panel energy savings occurs six to 10 years after installation.

About SunPower And with over 35 years of dedicated solar experience, we're the only U.S.-based solar company that's been around longer than our 25-year warranty.

SunPower Invisimount Mounting System SunPower® InvisiMount™ is a SunPower-designed rail-based mounting system. The InvisiMount system addresses residential sloped roofs and combines faster installation time, design flexibility, and superior aesthetics.

Solar panels, also known as photovoltaic or PV panels, are made to last more than 25 years. In fact, many solar panels installed as early as the 1980s are still working at expected capacity. Not only are solar panels remarkably reliable, solar panel longevity has increased dramatically over the last 20 years.

SunPower has the lowest degradation rate in the industry*. In fact, we guarantee that your panels won't lose more than 8% of their original DC power output within our 25-year warranty timeframe. Compare that to a loss of 17% power output for conventional solar solutions.