Based on historical Savanna, IL data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Savanna.[1]
Savanna has an average monthly Global Horizontal Irradiance (GHI) of 3.88 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 1% greater than the average monthly Direct Normal Irradiance (DNI) of 3.86 kWh/m2/day. [1]
Solar installations in Savanna that are always titled at the latitude of Savanna (Average Tilt at Latitude or ATaL) average 4.51 kWh/m2/day, or about 16% greater than the average monthly GHI of 3.88 kWh/m2/day and approximately 17% greater than the average monthly DNI of 3.86 kWh/m2/day. [1]
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 Savanna
Solar Radiation Data in Savanna, IL
See the chart below for monthly solar radiation levels in Savanna.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Savanna, IL
Savanna, IL has a average annual solar radiation value of 4.86 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Savanna is July with an average of 5.95 kWh/m2/day, followed by September at 5.85 kWh/m2/day and August at 5.84 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Savanna (Illinois) are December with an average of 2.95 kWh/m2/day, followed by January with an average of 3.24 kWh/m2/day and November at 3.86 kWh/m2/day. [1]
Solar Power Comparison: Savanna vs. the U.S.
Solar Power Levels in Savanna
The average monthly solar radiation level in Savanna, IL, of 4.86 kilowatt hours per square meter per day (kWh/m2/day) is approximately 24% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 26% less than the average level of 6.61 kWh/m2/day in a city with historically high levels (NV). [1]
→ Values listed as 0 (zero) are not available (N/A).
Solar Power: Savanna vs. the U.S.
Below is a month-by-month comparison of how average Savanna solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city 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).
We do not currently have data on solar panel installations in the city of Savanna, IL at this current time.
Solar Power Output in Savanna
The Power of Solar in Savanna, IL
Monthly AC solar system output averages for Savanna (il). Month-by-month solar power, as ranked by AC output, in Savanna. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Savanna, IL
Savanna (IL) has a average annual solar AC output value of 5580.65 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Savanna is August with an average of 545.43 kWhac, followed by July at 544.77 kWhac and September at 535.93 kWhac. [2]
The three months that historically average the lowest average solar output levels in Savanna (Illinois) are December with an average of 312.12 kWhac, followed by January with an average of 342.31 kWhac and November at 373.88 kWhac. [2]
Cost of Utilities in Savanna
Savanna Electricity Costs
Sorry, Savanna residential electricity prices are currently unavailable.
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Solar Power Poll: Savanna
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Savanna Natural Gas Costs
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Moderate breeze: 15 mps S
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Tue Dec 24
35°F
Light Rain
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Max: 35°F
Gentle Breeze: 8 mps E
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Wed Dec 25
37°F
Moderate Rain
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Max: 39°F
Gentle Breeze: 8 mps E
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Thu Dec 26
43°F
Light Rain
Min: 39°F
Max: 46°F
Gentle Breeze: 10 mps ESE
Precip.: Chance of Rain
Humidity: 98%
Cloud cover: 100%
More about Savanna
About Savanna
The city of Savanna, IL in Carroll County has an approximate population of 3,062. [6]
Savanna, IL Solar Energy
To learn more about solar energy and solar power Savanna, IL, or for more solar-related resources for Savanna, 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.