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How Long Do Solar Panels Last? Factors That Affect Its Lifespan
Many factors affect the amount of time a solar panel will last.
There are panels currently in use that were produced over 40
years ago that are still generating energy. Manufacturers average
a 25-year warranty and under well-maintained conditions and optimal
climates, solar panels may double that lifespan.
How long do solar
panels last, and what types of things can affect their lifespan?
Solar panels generally don't require a lot of maintenance,
but again, that depends on where you live, as well as how and
where the panels are installed. Proper maintenance can influence
both the effectiveness of the panels in addition to their
longevity. For example, maintenance is required to ensure
that your panels aren't shaded by trees (or overgrown limbs),
leaf or other debris, dirt or dust. Even a small amount of
shade has a large impact on the efficiency of solar panels.
Panels operate most efficiently when they receive direct
Areas affected by high winds in particular will require
regular cleaning of solar panels. Dust from gravel, dirt
roadways, fields, sand, and pollen can all need to be
removed. Smog in the city can also settle on your solar panels
blocking valuable sunrays from making energy for you. Wiping
down panels on a regular basis will help improve their effectiveness.
Winter brings a completely new set of issues with
solar panels. Snow will block the panels' ability to generate
energy, and the removal of snow is important if you want
maximum energy efficiency. This can be dangerous especially
if you have installed solar
roof tiles and have a sloped roof, making it more difficult
A lifespan of 25 years for solar panels is reasonable.
Regular maintenance (and repairs, if needed) can help to
extend the lifespan of the panels.