A solar energy system is an investment that can save you money by generating clean energy from the sun—a strong alternative to paying a utility company each year to keep up with never-ending grid maintenance. But residential roofs can be an inhospitable place, given the natural elements constantly bearing down on them and causing wear. It is important to find out how long the panels offered by solar installers will last, since they will need to be strong and dependable enough to stand the test of time.
Do I Need A Warranty?
Because solar panels have to endure weather conditions, temperature variations can drastically wear down the metal electrical connections found in standard panels. Nearly all varieties use a cheap metal paste that cracks when it expands and contracts with temperature fluctuations—similar to bending a paper clip one too many times. Broken connections can’t conduct energy, so these panels lose power-generating capabilities over time.
It is not uncommon to have to replace solar cells that are broken, setting you back $150-$300 or more. There are industry-standard certifications to mitigate this somewhat; however, they aren’t designed to guarantee a lifetime of performance in real-world conditions. Ensuring your panels are covered by warranty can insulate you from this hidden cost, but only to the degree that you have strong panels and a stronger warranty.
Why Does Having A Good Warranty Matter?
Most solar companies provide two warranties: one for performance and one for the equipment itself. It is fairly standard for a solar company to offer a 25-year warranty guaranteeing at least 80 percent efficiency and an equipment warranty for 10-12 years. Unfortunately, that doesn't give specific data in regards to how many times those warranties are actually honored, or whether the solar company will still be around to follow through on its promise.
The SunPower Difference
The SunPower difference starts with its confidence that it has constructed the best and most durable solar cell with its Maxeon solar cell technology. Rather than using cheap metal paste as the back of its panel—as its competitors do—SunPower uses a solid copper foundation to ensure maximum durability of its cells.
That’s why SunPower has the best warranty in the solar industry, bar none. It offers an industry-first 25-year combined warranty that covers equipment and production, so in the very rare event that you have an underperforming or damaged panel, SunPower or one of its partners will replace it at no cost to the homeowner.
You don’t want degraded cells to slowly wean you back onto your utility bill! It’s important to survey your options and choose the warranty that guarantees you some peace of mind and doesn't slowly drain your wallet—not now, and not within the next 25 years.
Go Solar with SunPower by Precis
At SunPower by Precis, our Riverside solar installation experts have helped countless residential and commercial clients make the switch to clean, renewable solar energy since 1988. To learn more about the solar process or how solar panels work, contact our team of experts today by calling us at (951) 800-7926.