Solar Energy & Solar Power Resources

Solar Energy in Joliet, IL

Solar Energy in Joliet

Sorry, historical solar radition values for Joliet are currently unavailable, please check back later.

Solar Panels in Joliet

Solar panels in Joliet that will produce the maximum solar energy output. [More]

Sunrise & Sunset in Joliet

The total length of the day in Joliet, IL today (October 21, 2026) will be 10 hours and 51 minutes. [More]

Solar Power in Joliet, IL

Solar Energy Data in Joliet, IL

See the chart below to see how different types of solar panel installations compare in Joliet.

Historical solar power output data for Joliet is not currently available.

Solar Energy Analysis for Joliet, IL

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Solar Energy Glossary

Global Horizontal Irradiance (GHI)

Global Horizontal Irradiance: The total amount of solar radiation that is received per unit area by a surface that is always positioned in a horizontal manner.

Direct Normal Irradiance (DNI)

Direct Normal Irradiance: The total amount of solar radiation received per unit area by a surface that is always perpendicular to the sun rays that come in a straight line from the direction of the sun at its current position in the sky.

Average Tilt at Latitude (ATaL)

Average Tilt at Latitude: The total amount of solar radiation received per unit area by a surface that is tilted toward the equator at an angle equal to the current latitude. ATaL will often produce the optimum energy output.

Solar Radiation Levels in Joliet

Solar Radiation Data in Joliet, IL

See the chart below for monthly solar radiation levels in Joliet.

Sorry, data is not currently available.

Solar Radiation Analysis for Joliet, IL

Sorry, it is not possible to complete our solar radiation analysis for Joliet at this time.

Historical solar radiation data for Joliet is not currently available.

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Solar Power Comparison: Joliet vs. the U.S.

Solar Power Levels in Joliet

Sorry, solar radiation data for Illinois is not currently available.

Solar Power: Joliet vs. the U.S.

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

Sorry, solar radiation data for Illinois is not currently available.

Solar Data & Statistics for Joliet

Sunrise / Sunset in Joliet

Sunrise/Sunset for October 21, 2026 ^[2]
- Sunrise: 7:11 am
- Sunset: 6:02 pm
- Length of Day: 10:51

Best Months for Solar in Joliet

Monthly data not currently available.

Solar Panel Installs in Joliet

We do not currently have data on solar panel installations in the city of Joliet, IL at this current time.

Solar Power Output in Joliet

The Power of Solar in Joliet, IL

Monthly AC solar system output averages for Joliet (il). Month-by-month solar power, as ranked by AC output, in Joliet. ^[2]

AC output data is not currently available.

Solar Output Analysis for Joliet, IL

Sorry, it is not possible to complete our solar radiation analysis for Joliet at this time.

Historical solar radiation data for Joliet is not currently available.

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Cost of Utilities in Joliet

Joliet Electricity Costs

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Solar Power Poll: Joliet

Vote now: Given all of the data and analysis provided for Joliet, is solar power a good choice for residents of this city?

Joliet Natural Gas Costs

Sorry, Illinois residential natural gas prices are currently unavailable.

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Weather Forecast for Joliet, IL ^[5]

Wed Oct 21

70°F

Sky Is Clear
Min: 42°F
Max: 71°F

Calm: 3 mps ESE
Precip.: n/a
Humidity: 45%
Cloud cover: 0%

Thu Oct 22

72°F

Sky Is Clear
Min: 46°F
Max: 74°F

Light breeze: 6 mps E
Precip.: n/a
Humidity: 64%
Cloud cover: 0%

Fri Oct 23

66°F

Sky Is Clear
Min: 47°F
Max: 69°F

Light breeze: 7 mps SE
Precip.: n/a
Humidity: 65%
Cloud cover: 0%

Sat Oct 24

64°F

Overcast Clouds
Min: 49°F
Max: 68°F

Light breeze: 7 mps S
Precip.: n/a
Humidity: 63%
Cloud cover: 94%

Sun Oct 25

67°F

Overcast Clouds
Min: 49°F
Max: 69°F

Light breeze: 5 mps SSE
Precip.: n/a
Humidity: 57%
Cloud cover: 92%

Mon Oct 26

67°F

Overcast Clouds
Min: 50°F
Max: 69°F

Light breeze: 6 mps S
Precip.: n/a
Humidity: 58%
Cloud cover: 100%

More about Joliet

About Joliet

The city of Joliet, IL in Will County has an approximate population of 147,433. ^[6]

Joliet, IL Solar Energy

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