Based on historical Harrell, AR data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Harrell.[1]
Harrell has an average monthly Global Horizontal Irradiance (GHI) of 4.51 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 1% greater than the average monthly Direct Normal Irradiance (DNI) of 4.48 kWh/m2/day. [1]
Solar installations in Harrell that are always titled at the latitude of Harrell (Average Tilt at Latitude or ATaL) average 5.04 kWh/m2/day, or about 12% greater than the average monthly GHI of 4.51 kWh/m2/day and approximately 13% greater than the average monthly DNI of 4.48 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 Harrell
Solar Radiation Data in Harrell, AR
See the chart below for monthly solar radiation levels in Harrell.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Harrell, AR
Harrell, AR has a average annual solar radiation value of 5.22 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Harrell is September with an average of 5.9 kWh/m2/day, followed by August at 5.86 kWh/m2/day and June at 5.75 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Harrell (Arkansas) are December with an average of 4.01 kWh/m2/day, followed by January with an average of 4.16 kWh/m2/day and February at 4.62 kWh/m2/day. [1]
Solar Power Comparison: Harrell vs. the U.S.
Solar Power Levels in Harrell
The average monthly solar radiation level in Harrell, AR, of 5.22 kilowatt hours per square meter per day (kWh/m2/day) is approximately 33% 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: Harrell vs. the U.S.
Below is a month-by-month comparison of how average Harrell 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 Harrell, AR at this current time.
Solar Power Output in Harrell
The Power of Solar in Harrell, AR
Monthly AC solar system output averages for Harrell (ar). Month-by-month solar power, as ranked by AC output, in Harrell. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Harrell, AR
Harrell (AR) has a average annual solar AC output value of 5590.11 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Harrell is August with an average of 505.59 kWhac, followed by September at 503.95 kWhac and July at 501.06 kWhac. [2]
The three months that historically average the lowest average solar output levels in Harrell (Arkansas) are December with an average of 379.92 kWhac, followed by February with an average of 394.17 kWhac and January at 398.99 kWhac. [2]
Cost of Utilities in Harrell
Harrell Electricity Costs
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Solar Power Poll: Harrell
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Harrell Natural Gas Costs
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Gentle Breeze: 11 mps S
Precip.: Chance of Rain
Humidity: 41%
Cloud cover: 4%
More about Harrell
About Harrell
The town of Harrell, AR in Calhoun County has an approximate population of 254. [6]
Harrell, AR Solar Energy
To learn more about solar energy and solar power Harrell, AR, or for more solar-related resources for Harrell, visit the U.S. Energy Information Administration.
Did you know?
About half of the sun's energy is absorbed by the Earth's surface; about 30 percent is reflected back from the surface.