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Solar Energy in Illinois

Solar Panels in Illinois

There are currently at least 1,483 solar panel installations throughout the state of Illinois right now.

Solar Energy Data in IL by City

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Solar Power in IL

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IL Solar Energy

Solar Power in Illinois

Solar Energy Levels in Illinois

The average monthly solar radiation level in Illinois's capital city, Springfield, of 4.41 kilowatt hours per square meter per day (kWh/m2/day) is approximately 18% greater than the average level of 3.73 kWh/m2/day in an area with historically low levels (WA) and is (sorry, data not currently available) the average level of kWh/m2/day in an area with historically high levels (NV). [1]


→ Values listed as 0 (zero) are not available (N/A).
→ Illinois values listed here are based on the capital, Springfield.

Solar Radiation in Illinois

Below is a month-by-month comparison of how average Illinois solar radiation levels compare to average levels in an area with historcially high levels (NV) and one with historically low levels (WA). [1]

→ k/m/d = kWh/m2/day = kilowatt hours per square meter per day.
→ Values listed as 0 (zero) are not available (N/A).
→ Illinois values listed here are based on the capital, Springfield.

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Solar Installs in Illinois

Solar Panel Installations in Illinois

A look at solar installs in Illinois. The chart below visualizes install totals for the top five counties in IL vs. the cumulative install total of rest of IL counties combined.

Breakdown of Solar Installs in Illinois

There are currently at least 1,483 solar panel installations throughout the state of Illinois right now. [1]

  • Top Five Solar Install Counties in Illinois
    • Cook County: 364 solar installs
    • Dupage County: 84 solar installs
    • Lake County: 81 solar installs
    • Madison County: 58 solar installs
    • Sangamon County: 49 solar installs
    • Everywhere Else: 847 solar installs

Note: Install totals presented here are those voluntarily contributed from a variety of sources including solar incentive programs, utilities, installers, and the general public. [1] Data for some states is thinner than others.

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Cost of Utilities in Illinois

Illinois Electricity Costs

Residential electricity prices in Illinois averaged 13.71 cents per kilowatthour (¢/kWh) in May 2017, which was approximately 5% more than the overall U.S. average residential electricity rate of 13.02¢/kWh in May. [2]

Solar Power Poll: Illinois

Vote now: What do you think? Are solar panels & solar power a good choice for residents of the state of Illinois?

IL: Yes, solar is a great option  
IL: No, solar isn't a good option

Illinois Natural Gas Costs

Residential natural gas prices in Illinois averaged $10.13 per thousand cubic feet (Mcf) in April 2017, which was about 23% less than the overall U.S. average residential natural gas rate of $13.21 per Mcf in April. [3]

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More about Illinois

About Illinois

Illinois ranks 7th among all states in the U.S. with a population of approximately 12,830,632. [4]

IL Solar Power

Solar Energy in IL

To learn more about solar energy and solar power in Illinois, or for additional solar-related resources in IL, visit the U.S. Energy Information Administration.

Did you know?

It takes light about 8 minutes, 19 seconds to travel the 93,000,000 miles from the sun's surface to us on Earth.

Cities in Illinois

References