See the chart below to see how different types of solar panel installations compare in Selma.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Selma, 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 Selma. [1]
Selma has an average monthly Global Horizontal Irradiance (GHI) of 4.62 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 3% greater than the average monthly Direct Normal Irradiance (DNI) of 4.5 kWh/m2/day. [1]
Solar installations in Selma that are always titled at the latitude of Selma (Average Tilt at Latitude or ATaL) average 5.18 kWh/m2/day, or about 12% greater than the average monthly GHI of 4.62 kWh/m2/day and approximately 15% greater than the average monthly DNI of 4.5 kWh/m2/day. [1]
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: 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: 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.
See the chart below for monthly solar radiation levels in Selma.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Selma, AL has a average annual solar radiation value of 5.4 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Selma is August with an average of 5.9 kWh/m2/day, followed by September at 5.88 kWh/m2/day and May at 5.87 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Selma (Alabama) are December with an average of 4.1 kWh/m2/day, followed by January with an average of 4.71 kWh/m2/day and February at 5.07 kWh/m2/day. [1]
The average monthly solar radiation level in Selma, AL, of 5.4 kilowatt hours per square meter per day (kWh/m2/day) is approximately 37% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 18% 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).
Below is a month-by-month comparison of how average Selma 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 Selma, AL at this current time.
Monthly AC solar system output averages for Selma (al). Month-by-month solar power, as ranked by AC output, in Selma. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Selma (AL) has a average annual solar AC output value of 5828.04 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Selma is May with an average of 526.7 kWhac, followed by October at 521.81 kWhac and August at 518.93 kWhac. [2]
The three months that historically average the lowest average solar output levels in Selma (Alabama) are December with an average of 390.5 kWhac, followed by February with an average of 436.44 kWhac and January at 450.99 kWhac. [2]
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Vote now: Given all of the data and analysis provided for Selma, is solar power a good choice for residents of this city?
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The city of Selma, AL in Dallas County has an approximate population of 20,756. [6]
To learn more about solar energy and solar power Selma, AL, or for more solar-related resources for Selma, visit the U.S. Energy Information Administration.
Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.
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