Do Solar Panels Cool Attic

They don t show the attic temperatures here but if the shingles are cooler the attic is cooler.

Do solar panels cool attic.

The fan blades spin but they don t lower the attic temperature at all. Air movement can be a significant problem with some models. According to a team of researchers at the uc san diego jacobs school of engineering the solar panels sprouting on increasing numbers of residential and commercial rooftops around the world aren t. Do solar panels keep your roof and attic cooler.

The researchers found that solar panels can lower a roof s temperature by 5 degrees fahrenheit or about 3 degrees celsius. Installing solar panels will block this sunlight from hitting your roof thereby preventing heat from entering your house. White shingles reflect more of the incident solar radiation and stay cooler. This can significantly reduce cooling costs over the life of the solar panels.

You can read more about this in fsec s literature review of attic ventilation pdf. The graph is from page 30. Before considering solar attic fans you will want to think about how much direct sunlight your solar panel will receive each day. The researchers have focused on white solar panels not just because of the versatility of the color but because white solar panels would stay cooler which boosts their efficiency and using.