See the chart below to see how different types of solar panel installations compare in Keller.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Keller, VA data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Keller. [1]
Keller has an average monthly Global Horizontal Irradiance (GHI) of 4.34 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 2% less than the average monthly Direct Normal Irradiance (DNI) of 4.43 kWh/m2/day. [1]
Solar installations in Keller that are always titled at the latitude of Keller (Average Tilt at Latitude or ATaL) average 5.04 kWh/m2/day, or about 16% greater than the average monthly GHI of 4.34 kWh/m2/day and approximately 14% greater than the average monthly DNI of 4.43 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 Keller.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Keller, VA has a average annual solar radiation value of 5.18 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Keller is May with an average of 6.01 kWh/m2/day, followed by June at 5.96 kWh/m2/day and April at 5.9 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Keller (Virginia) are December with an average of 3.81 kWh/m2/day, followed by January with an average of 4.06 kWh/m2/day and November at 4.24 kWh/m2/day. [1]
The average monthly solar radiation level in Keller, VA, of 5.18 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 22% 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 Keller 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 Keller, VA at this current time.
Monthly AC solar system output averages for Keller (va). Month-by-month solar power, as ranked by AC output, in Keller. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Keller (VA) has a average annual solar AC output value of 5948.23 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Keller is May with an average of 576.77 kWhac, followed by April at 554.03 kWhac and July at 548.39 kWhac. [2]
The three months that historically average the lowest average solar output levels in Keller (Virginia) are December with an average of 387.93 kWhac, followed by November with an average of 410.63 kWhac and January at 420.89 kWhac. [2]
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The town of Keller, VA in Accomack County has an approximate population of 178. [6]
To learn more about solar energy and solar power Keller, VA, or for more solar-related resources for Keller, visit the U.S. Energy Information Administration.
Some tax incentives and rebate programs are designed to spur the use of solar energy. These vary by location.
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