How Photovoltaic Panels Are Impacted by Arizona’s Summer Heat

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Here in the Valley of the Sun, photovoltaic panels are incredibly valuable to homeowners by enabling clean, affordable power for air conditioning, lighting and home appliances. Yet, it’s important to understand how the high temperatures that we experience during the summer months can impact solar panel function.

As temperatures rise, solar panels can produce less electricity from the same amount of sunlight. This is caused by heat changing the speed at which the electrons in a solar cell travel. This speed reduction impacts the flow of electricity. By some calculations, for each degree the mercury rises above 107 degrees Fahrenheit, there is a 1.1 percent decrease in panel efficiency. Considering that solar panels can be up to 20 degrees hotter than air temperature, this is something to consider.

Reducing the Effect of Extreme Heat on Photovoltaic Panels

The good news is that there are steps to minimize the impact of high temperatures on solar panels. This begins with choosing a solar provider who uses quality panels that are constructed from lighter materials. Darker colors simply absorb more heat, so they’re inherently less effective in hot conditions. Installation is also critical to panel effectiveness. In hot temperatures, panels that are installed a few inches above the roof can enable airflow that helps keep them cooler and more productive.

Work with an Expert

At Cool Blew Solar, we are the local experts in solar installation throughout the greater Phoenix area. We understand the challenges of extreme heat and how to make the most of our plentiful amount of sun. Give us a call today for a free estimate to learn more about how solar can work for you all year long and help you slash those upcoming, rising air conditioning costs.