Based on historical Cullman, AL data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Cullman.[1]
Cullman has an average monthly Global Horizontal Irradiance (GHI) of 4.42 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 3% greater than the average monthly Direct Normal Irradiance (DNI) of 4.28 kWh/m2/day. [1]
Solar installations in Cullman that are always titled at the latitude of Cullman (Average Tilt at Latitude or ATaL) average 4.99 kWh/m2/day, or about 13% greater than the average monthly GHI of 4.42 kWh/m2/day and approximately 17% greater than the average monthly DNI of 4.28 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 Cullman
Solar Radiation Data in Cullman, AL
See the chart below for monthly solar radiation levels in Cullman.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Cullman, AL
Cullman, AL has a average annual solar radiation value of 5.2 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Cullman is August with an average of 5.88 kWh/m2/day, followed by June at 5.76 kWh/m2/day and September at 5.66 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Cullman (Alabama) are December with an average of 3.87 kWh/m2/day, followed by January with an average of 4.18 kWh/m2/day and February at 4.47 kWh/m2/day. [1]
Solar Power Comparison: Cullman vs. the U.S.
Solar Power Levels in Cullman
The average monthly solar radiation level in Cullman, AL, of 5.2 kilowatt hours per square meter per day (kWh/m2/day) is approximately 32% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 21% 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: Cullman vs. the U.S.
Below is a month-by-month comparison of how average Cullman 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 Cullman, AL at this current time.
Solar Power Output in Cullman
The Power of Solar in Cullman, AL
Monthly AC solar system output averages for Cullman (al). Month-by-month solar power, as ranked by AC output, in Cullman. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Cullman, AL
Cullman (AL) has a average annual solar AC output value of 5600.72 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Cullman is August with an average of 512.34 kWhac, followed by October at 511.41 kWhac and May at 498.65 kWhac. [2]
The three months that historically average the lowest average solar output levels in Cullman (Alabama) are December with an average of 371.72 kWhac, followed by February with an average of 390.51 kWhac and January at 405.78 kWhac. [2]
Cost of Utilities in Cullman
Cullman Electricity Costs
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Solar Power Poll: Cullman
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Cullman Natural Gas Costs
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Moderate breeze: 13 mps SE
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Thu Dec 26
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Light Rain
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Moderate breeze: 13 mps SE
Precip.: Chance of Rain
Humidity: 81%
Cloud cover: 100%
More about Cullman
About Cullman
The city of Cullman, AL in Cullman County has an approximate population of 14,775. [6]
Cullman, AL Solar Energy
To learn more about solar energy and solar power Cullman, AL, or for more solar-related resources for Cullman, 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.