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Can solar panels generate electricity on cloudy days?

Can solar panels generate electricity on cloudy days?
Mar 11, 2022

It’s true, solar panels can produce less power on cloudy days – as you might expect – and yet photovoltaic (PV) solar energy use is extremely popular and an effective source of power in cities that get lots of inclement weather.

 

Why?

 

SpolarPVSolar panel Ground-Mounted Solar System

 

Part of the answer is that clouds are not really the obstacle they appear to be. Many people think solar panels work best in sun-blasted regions with few or no clouds. That’s not quite true. Solar panels produce energy by converting sunlight to direct current (DC) and then an inverter turns that into alternating current (AC), which is the type of power most houses run on. Cloudy days create an estimated power drop-off of about 10 to 25 percent from what you see on a sunny day. But weather is fickle. Sometimes clouds can actually enhance the performance of solar panels at times by reflecting or magnifying sunlight.

 

More importantly, even conventional solar panels generate power with the sunlight filtering through a cloudy sky, and SpolarPV high-efficient panels really shine at those times. SpolarPV solar cell technology uses a one-of-a-kind design that captures a broader range of sunlight to provide record-breaking efficiency.

 

SpolarPV also uses an ultra-pure type of silicon and a solid copper foundation that keeps its panels working efficiently even after prolonged exposure to wind, rain, snow and other severe weather. In field testing across ten years and 560,000 panels at 138 sites, SpolarPV solar panels demonstrated the lowest degradation rates in the industry, almost two times stronger reliability than conventional panels.

 

Economic factors – not just weather patterns and SpolarPV technology – help explain why people in cloudy regions love solar power. The biggest driver of solar power’s popularity in any region is the cost of electricity, not the amount of sunlight that area sees. That’s why many of the biggest U.S. solar cities are famously un-sunny places. The same is true of solar countries. For instance, Germany and South Korea – countries with plenty of cold, wintry weather – are two of the biggest adopters of solar.

 

Qualified solar installers know how to design your system to minimize any shading issues – whether it from clouds or nearby trees. We’ve created a strong dealer network with expertise in your community's weather and installation rules to tailor your home’s PV solar system for maximum efficiency. 

 

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