See the chart below to see how different types of solar panel installations compare in Keene.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Keene, TX data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Keene. [1]
Keene has an average monthly Global Horizontal Irradiance (GHI) of 4.8 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 7% less than the average monthly Direct Normal Irradiance (DNI) of 5.15 kWh/m2/day. [1]
Solar installations in Keene that are always titled at the latitude of Keene (Average Tilt at Latitude or ATaL) average 5.39 kWh/m2/day, or about 12% greater than the average monthly GHI of 4.8 kWh/m2/day and approximately 5% greater than the average monthly DNI of 5.15 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 Keene.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Keene, TX has a average annual solar radiation value of 5.63 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Keene is August with an average of 6.3 kWh/m2/day, followed by September at 6.17 kWh/m2/day and July at 6.12 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Keene (Texas) are December with an average of 4.8 kWh/m2/day, followed by February with an average of 5.01 kWh/m2/day and January at 5.09 kWh/m2/day. [1]
The average monthly solar radiation level in Keene, TX, of 5.63 kilowatt hours per square meter per day (kWh/m2/day) is approximately 43% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 15% 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 Keene 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 Keene, TX at this current time.
Monthly AC solar system output averages for Keene (tx). Month-by-month solar power, as ranked by AC output, in Keene. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Keene (TX) has a average annual solar AC output value of 6255.99 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Keene is August with an average of 568.68 kWhac, followed by July at 558.86 kWhac and September at 548.72 kWhac. [2]
The three months that historically average the lowest average solar output levels in Keene (Texas) are February with an average of 441.32 kWhac, followed by December with an average of 471.55 kWhac and January at 503.45 kWhac. [2]
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Vote now: Given all of the data and analysis provided for Keene, is solar power a good choice for residents of this city?
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The city of Keene, TX in Johnson County has an approximate population of 6,106. [6]
To learn more about solar energy and solar power Keene, TX, or for more solar-related resources for Keene, 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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