Understanding Solar Panels in the Summer: Efficiency, Performance & Tips
Summer in Las Vegas means longer days, intense sunlight, and—fortunately for solar owners—an opportunity to generate more power. But how exactly do solar panels in the summer perform, and are there any downsides? Let’s break it down so you can make the most of your system during the hottest months of the year.
Do Solar Panels Produce More Energy in the Summer?
Yes! Summer brings more daylight hours and stronger sunlight, which increases solar panel output. Your panels receive more direct sunlight, which means they can convert more energy into electricity.
However, solar panels don’t necessarily work better in high heat. While the amount of sunlight increases energy production, extremely high temperatures can actually decrease the efficiency of solar cells.
How Heat Affects Solar Panel Efficiency
Here’s the science: solar panels work by converting sunlight into electricity through photovoltaic (PV) cells. But just like your phone or computer, they can become less efficient as they heat up.
Most panels lose around 0.3% to 0.5% efficiency for every degree above 77°F, which is the standard testing condition. In Las Vegas, summer temperatures can regularly exceed 100°F, so while you’re still generating a lot of power, your system may not be running at peak efficiency.
Tips to Maximize Solar Panel Performance in Summer
To get the most out of your solar panels in the summer, here are a few things you can do:
1. Ensure Proper Ventilation
Solar panels are usually mounted a few inches above the roof, allowing air to circulate underneath and help cool them down. Make sure your mounting system is optimized for airflow.
2. Clean Your Panels Regularly
Dust, pollen, and bird droppings can block sunlight. Clean your panels or schedule a professional solar panel cleaning at least once a season for maximum output.
3. Monitor Your System
Use a solar monitoring app or portal to keep track of your energy production. This helps you catch any performance issues quickly.
4. Shade Management
Make sure nearby trees or structures aren’t casting unexpected shadows during the day. Even partial shading can reduce panel efficiency.
Longer Days = More Solar Savings
Despite the slight dip in efficiency due to heat, the long summer days more than make up for it. Homeowners typically see their highest solar energy production from May through August, resulting in lower utility bills and increased energy independence.
Let Cooper Roofing & Solar Optimize Your Solar Setup
If you’re considering solar or want to improve your current system, Cooper Roofing & Solar can help you design a setup that’s efficient year-round—even in the peak summer heat. Our team of experts will assess your roof, panel placement, and system performance to ensure you’re maximizing your solar investment.
Solar panels in the summer are a smart and effective way to cut your energy costs, even with the Vegas heat. With proper care and system design, you can enjoy strong performance and big savings all season long.
Ready to maximize your solar energy this summer? Contact Cooper Roofing & Solar today for a free consultation!