Based on historical Davis, 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 Davis.[1]
Davis has an average monthly Global Horizontal Irradiance (GHI) of 3.83 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 2% greater than the average monthly Direct Normal Irradiance (DNI) of 3.76 kWh/m2/day. [1]
Solar installations in Davis that are always titled at the latitude of Davis (Average Tilt at Latitude or ATaL) average 4.42 kWh/m2/day, or about 15% greater than the average monthly GHI of 3.83 kWh/m2/day and approximately 18% greater than the average monthly DNI of 3.76 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 Davis
Solar Radiation Data in Davis, IL
See the chart below for monthly solar radiation levels in Davis.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Davis, IL
Davis, IL has a average annual solar radiation value of 4.8 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Davis is July with an average of 6.24 kWh/m2/day, followed by August at 5.99 kWh/m2/day and June at 5.94 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Davis (Illinois) are December with an average of 2.84 kWh/m2/day, followed by January with an average of 3.14 kWh/m2/day and November at 3.46 kWh/m2/day. [1]
Solar Power Comparison: Davis vs. the U.S.
Solar Power Levels in Davis
The average monthly solar radiation level in Davis, IL, of 4.8 kilowatt hours per square meter per day (kWh/m2/day) is approximately 22% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 27% 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: Davis vs. the U.S.
Below is a month-by-month comparison of how average Davis 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 village of Davis, IL at this current time.
Solar Power Output in Davis
The Power of Solar in Davis, IL
Monthly AC solar system output averages for Davis (il). Month-by-month solar power, as ranked by AC output, in Davis. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Davis, IL
Davis (IL) has a average annual solar AC output value of 5513.78 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Davis is July with an average of 579.04 kWhac, followed by August at 558.5 kWhac and May at 541.47 kWhac. [2]
The three months that historically average the lowest average solar output levels in Davis (Illinois) are December with an average of 297.59 kWhac, followed by November with an average of 336.38 kWhac and January at 336.8 kWhac. [2]
Cost of Utilities in Davis
Davis Electricity Costs
Sorry, Davis residential electricity prices are currently unavailable.
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Solar Power Poll: Davis
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Davis Natural Gas Costs
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Gentle Breeze: 8 mps E
Precip.: Chance of Rain
Humidity: 88%
Cloud cover: 100%
Wed Dec 25
35°F
Light Rain
Min: 34°F
Max: 35°F
Light breeze: 6 mps NE
Precip.: Chance of Rain
Humidity: 99%
Cloud cover: 100%
Thu Dec 26
40°F
Light Rain
Min: 35°F
Max: 43°F
Fresh Breeze: 18 mps ESE
Precip.: Chance of Rain
Humidity: 93%
Cloud cover: 100%
More about Davis
About Davis
The village of Davis, IL in Stephenson County has an approximate population of 677. [6]
Davis, IL Solar Energy
To learn more about solar energy and solar power Davis, IL, or for more solar-related resources for Davis, visit the U.S. Energy Information Administration.
Did you know?
Solar cells convert sunlight into electricity through a physical process known as the photovoltaic effect.