Based on historical Rockbridge, 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 Rockbridge.[1]
Rockbridge has an average monthly Global Horizontal Irradiance (GHI) of 4.18 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 3% less than the average monthly Direct Normal Irradiance (DNI) of 4.3 kWh/m2/day. [1]
Solar installations in Rockbridge that are always titled at the latitude of Rockbridge (Average Tilt at Latitude or ATaL) average 4.83 kWh/m2/day, or about 16% greater than the average monthly GHI of 4.18 kWh/m2/day and approximately 12% greater than the average monthly DNI of 4.3 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 Rockbridge
Solar Radiation Data in Rockbridge, IL
See the chart below for monthly solar radiation levels in Rockbridge.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Rockbridge, IL
Rockbridge, IL has a average annual solar radiation value of 5.06 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Rockbridge is August with an average of 6.16 kWh/m2/day, followed by July at 6.12 kWh/m2/day and June at 6.04 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Rockbridge (Illinois) are December with an average of 3.31 kWh/m2/day, followed by January with an average of 3.65 kWh/m2/day and November at 4.21 kWh/m2/day. [1]
Solar Power Comparison: Rockbridge vs. the U.S.
Solar Power Levels in Rockbridge
The average monthly solar radiation level in Rockbridge, IL, of 5.06 kilowatt hours per square meter per day (kWh/m2/day) is approximately 29% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 23% 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: Rockbridge vs. the U.S.
Below is a month-by-month comparison of how average Rockbridge 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 Rockbridge, IL at this current time.
Solar Power Output in Rockbridge
The Power of Solar in Rockbridge, IL
Monthly AC solar system output averages for Rockbridge (il). Month-by-month solar power, as ranked by AC output, in Rockbridge. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Rockbridge, IL
Rockbridge (IL) has a average annual solar AC output value of 5762.42 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Rockbridge is August with an average of 570.47 kWhac, followed by July at 559.02 kWhac and June at 541 kWhac. [2]
The three months that historically average the lowest average solar output levels in Rockbridge (Illinois) are December with an average of 342.86 kWhac, followed by January with an average of 376.91 kWhac and February at 385.74 kWhac. [2]
Cost of Utilities in Rockbridge
Rockbridge Electricity Costs
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Solar Power Poll: Rockbridge
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Rockbridge Natural Gas Costs
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Moderate breeze: 15 mps NE
Precip.: Chance of Rain
Humidity: 85%
Cloud cover: 100%
Sat Apr 5
45°F
Moderate Rain
Min: 45°F
Max: 50°F
Moderate breeze: 17 mps NNE
Precip.: Chance of Rain
Humidity: 94%
Cloud cover: 100%
Sun Apr 6
39°F
Rain And Snow
Min: 37°F
Max: 45°F
Fresh Breeze: 18 mps NNE
Precip.: Chance of Rain
Humidity: 86%
Cloud cover: 100%
Mon Apr 7
54°F
Light Rain
Min: 33°F
Max: 54°F
Moderate breeze: 14 mps N
Precip.: Chance of Rain
Humidity: 52%
Cloud cover: 38%
Tue Apr 8
48°F
Light Rain
Min: 31°F
Max: 51°F
Gentle Breeze: 12 mps E
Precip.: Chance of Rain
Humidity: 44%
Cloud cover: 17%
More about Rockbridge
About Rockbridge
The village of Rockbridge, IL in Greene County has an approximate population of 169. [6]
Rockbridge, IL Solar Energy
To learn more about solar energy and solar power Rockbridge, IL, or for more solar-related resources for Rockbridge, 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.
