Based on historical Orrstown, PA data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Orrstown.[1]
Orrstown has an average monthly Global Horizontal Irradiance (GHI) of 3.92 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 6% greater than the average monthly Direct Normal Irradiance (DNI) of 3.71 kWh/m2/day. [1]
Solar installations in Orrstown that are always titled at the latitude of Orrstown (Average Tilt at Latitude or ATaL) average 4.53 kWh/m2/day, or about 16% greater than the average monthly GHI of 3.92 kWh/m2/day and approximately 22% greater than the average monthly DNI of 3.71 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 Orrstown
Solar Radiation Data in Orrstown, PA
See the chart below for monthly solar radiation levels in Orrstown.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Orrstown, PA
Orrstown, PA has a average annual solar radiation value of 4.71 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Orrstown is July with an average of 5.73 kWh/m2/day, followed by August at 5.67 kWh/m2/day and May at 5.46 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Orrstown (Pennsylvania) are December with an average of 2.82 kWh/m2/day, followed by January with an average of 3.38 kWh/m2/day and November at 3.82 kWh/m2/day. [1]
Solar Power Comparison: Orrstown vs. the U.S.
Solar Power Levels in Orrstown
The average monthly solar radiation level in Orrstown, PA, of 4.71 kilowatt hours per square meter per day (kWh/m2/day) is approximately 20% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 29% 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: Orrstown vs. the U.S.
Below is a month-by-month comparison of how average Orrstown 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 borough of Orrstown, PA at this current time.
Solar Power Output in Orrstown
The Power of Solar in Orrstown, PA
Monthly AC solar system output averages for Orrstown (pa). Month-by-month solar power, as ranked by AC output, in Orrstown. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Orrstown, PA
Orrstown (PA) has a average annual solar AC output value of 5293.11 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Orrstown is July with an average of 523.59 kWhac, followed by August at 512.15 kWhac and May at 509.09 kWhac. [2]
The three months that historically average the lowest average solar output levels in Orrstown (Pennsylvania) are December with an average of 285.71 kWhac, followed by January with an average of 348.15 kWhac and November at 367.51 kWhac. [2]
Cost of Utilities in Orrstown
Orrstown Electricity Costs
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Solar Power Poll: Orrstown
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Orrstown Natural Gas Costs
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Light breeze: 5 mps NE
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More about Orrstown
About Orrstown
The borough of Orrstown, PA in Franklin County has an approximate population of 262. [6]
Orrstown, PA Solar Energy
To learn more about solar energy and solar power Orrstown, PA, or for more solar-related resources for Orrstown, 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.