Solar Panel Efficiency On Rainy Days

The average efficiency of solar panels falls between the 17 to 19 percent efficiency range.

Solar panel efficiency on rainy days.

That s why you want to know if solar panels will work in adverse weather conditions such as cloudy days rainy days or snowy days. Anyone who has gotten sunburned on a cloudy day knows that solar radiation penetrates clouds. Factors that affect solar panel efficiency. On a rainy or cloudy day many of the appliances like fans or air conditioning may not be needed.

This claim is false. This is an important question to ask as these weather conditions can affect your pv module energy production and as a result dampen the return on investment for your solar panels. For that same reason solar panels can still produce electricity on cloudy days. Your solar panels performance and efficiency matters.

Solar panels have been consistently increasing in efficiency at about 5 annually since 2010. However south carolina summers are known to be unpredictable when it comes to weather. Solar panels can still can produce 10 25 of their typical output on a cloudy day. The highest efficiency solar panels on the market today can reach almost 23 percent efficiency.

But depending on the cloud cover and the quality of the solar panels efficiency can drop to anywhere from 10 to 25 percent of the energy output seen on a sunny day. When you look at the usability of a solar panel on a cloudy or rainy day the more important factor is to know if the solar panels will produce sufficient power to run you house. Some critics of solar power say that solar panels don t produce electricity on cloudy days.