Why Missouri’s Hottest Months Bring Your Highest Electric Bills
Joseph Martinez
on
June 23, 2025
Solar in the Midwest
When summer hits the Midwest, temperatures often soar past 90 degrees across Missouri, Illinois, and Kansas. Homes work harder to stay cool. Air conditioners run longer, fans stay on, and energy use climbs fast. That is why so many homeowners see their highest electricity bills during June, July, and August.
There is a smart way to take control. Solar energy lets you produce clean electricity right on your roof. That power helps run your home when you need it most and cuts down what you buy from the grid during peak summer demand.
Why Summer Electric Bills Spike Across Missouri, Illinois, and Kansas
Electric bills rise for two big reasons during the hottest months. Air conditioners work harder and stay on longer to keep your home comfortable. On top of that, utilities often charge more during peak demand periods. This happens on the hottest afternoons when nearly every home is trying to stay cool at the same time. Many families see their summer bills double or even triple compared to what they pay in the spring or fall.
How Solar Panels Help Offset Summer Energy Use
Solar panels work by converting sunlight into electricity. It is the light energy that generates power, not the heat. Even during Midwest heatwaves, your solar system produces electricity as long as the sun is shining.
Here is why solar is so effective during Midwest summers:
Your panels produce the most electricity during the middle of the day when your AC is working hardest.
Longer daylight hours give your system more time to generate power.
If you produce more than you use during the day, net metering allows you to earn credits that lower your costs at night.

Do Solar Panels Lose Efficiency When It Is Hot?
Solar panels can lose a small amount of efficiency as temperatures rise above 77°F. High heat slightly reduces the voltage the panels produce. This is a minor effect. Most panels lose only about 0.3 to 0.5 percent output for each degree Celsius over the ideal temperature.
In the Midwest, longer summer days mean your panels still produce plenty of energy, even during heatwaves. At ARC, we install panels that are tested and rated to handle Midwest conditions. They keep working through the heat, storms, and humidity.
Why Now Is the Right Time to Go Solar
Utility rates across Missouri, Illinois, and Kansas are rising. The 30 percent federal tax credit is still in place, but there is no telling how long it will last. Adding solar now helps you lock in stable energy costs, protect against rate hikes, and take control of your home’s energy future.
Your roof is soaking up the sun all summer. Make it work for you.
See if your home qualifies for solar and learn how much you can save.