See the chart below to see how different types of solar panel installations compare in Excel.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Excel, 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 Excel. [1]
Excel has an average monthly Global Horizontal Irradiance (GHI) of 4.69 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 4% greater than the average monthly Direct Normal Irradiance (DNI) of 4.53 kWh/m2/day. [1]
Solar installations in Excel that are always titled at the latitude of Excel (Average Tilt at Latitude or ATaL) average 5.23 kWh/m2/day, or about 12% greater than the average monthly GHI of 4.69 kWh/m2/day and approximately 15% greater than the average monthly DNI of 4.53 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 Excel.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Excel, AL has a average annual solar radiation value of 5.46 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Excel is October with an average of 6.1 kWh/m2/day, followed by April at 5.92 kWh/m2/day and September at 5.8 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Excel (Alabama) are December with an average of 4.24 kWh/m2/day, followed by January with an average of 4.9 kWh/m2/day and February at 4.93 kWh/m2/day. [1]
The average monthly solar radiation level in Excel, AL, of 5.46 kilowatt hours per square meter per day (kWh/m2/day) is approximately 39% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 17% 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 Excel 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 town of Excel, AL at this current time.
Monthly AC solar system output averages for Excel (al). Month-by-month solar power, as ranked by AC output, in Excel. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Excel (AL) has a average annual solar AC output value of 5847.41 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Excel is October with an average of 549.99 kWhac, followed by April at 522.55 kWhac and May at 519.14 kWhac. [2]
The three months that historically average the lowest average solar output levels in Excel (Alabama) are December with an average of 400.69 kWhac, followed by February with an average of 417.86 kWhac and June at 464.32 kWhac. [2]
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The town of Excel, AL in Monroe County has an approximate population of 723. [6]
To learn more about solar energy and solar power Excel, AL, or for more solar-related resources for Excel, visit the U.S. Energy Information Administration.
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