A Solar Panel Summer

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It’s summertime. The heat and humidity levels are elevated with high overnight-low temperatures. Yes, there’s plenty of time to enjoy your swimming pool! But, what about your home solar system? How does the summer heat and sun impact solar panel energy output?

A few factors to think about with your solar power arrays are tilt angle and orientation. The sun is higher overhead in summer skies. Solar panels installed on completely flat roofs or slightly angled roofs perform better in the summer than in the winter. In the winter, if solar panels are installed at a steeper angle, panels will produce more energy as the sun will be shining more directly when its orientation is lower on the horizon.

Solar arrays almost always produce more energy in the late spring and summer due to longer days. It’s not the outside temperature that matters most. What you want your solar panels to offset is your energy usage over an entire year. In the spring and summer months, your solar system will generate more energy than you use. This generates electric bill credits which can be used in winter months when your system generates less energy than you need.

Your solar panels will operate at a lower efficiency as the temperatures rise. That’s why it’s important to work with your solar panel installer experts to select panels with higher values for temperature coefficient. Values currently range from 15% to 23%. The higher the value of efficiency, the fewer number of solar panels need to be installed.

Monocrystalline solar panels are the preferred arrays for rooftop solar panel installations. Solar cells within these panels are a single, flat black color, which is why they are popular with homeowners. The monocrystalline silicon wafers are shaped liked squares with the corners removed. In contrast, bifacial solar panels generate solar energy from the front and back of the panel. Some manufacturers state up to a 10% increase in power generation. Though bifacial solar panels can be more expensive.

When you’re ready to go solar or upgrade your current solar power system, call the professionals at Cool Blew Solar. We are your trusted solar installers in the Phoenix area. We’ll help educate you on the best solar arrays for your home. Call us today at 623-234-2836.