See the chart below to see how different types of solar panel installations compare in Rapid City.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Rapid City, SD data, solar panels that always track the sun throughout the day will produce the maximum solar energy output in Rapid City. [1]
Rapid City has an average monthly Global Horizontal Irradiance (GHI) of 4.3 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 20% less than the average monthly Direct Normal Irradiance (DNI) of 5.37 kWh/m2/day. [1]
Solar installations in Rapid City that are always titled at the latitude of Rapid City (Average Tilt at Latitude or ATaL) average 5.31 kWh/m2/day, or about 23% greater than the average monthly GHI of 4.3 kWh/m2/day and approximately 1% less than the average monthly DNI of 5.37 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 Rapid City.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Rapid City, SD has a average annual solar radiation value of 5.42 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Rapid City is July with an average of 6.67 kWh/m2/day, followed by August at 6.59 kWh/m2/day and September at 6.42 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Rapid City (South Dakota) are December with an average of 3.84 kWh/m2/day, followed by January with an average of 3.94 kWh/m2/day and November at 4.32 kWh/m2/day. [1]
The average monthly solar radiation level in Rapid City, SD, of 5.42 kilowatt hours per square meter per day (kWh/m2/day) is approximately 38% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 18% 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 Rapid City 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 Rapid City, SD at this current time.
Monthly AC solar system output averages for Rapid City (sd). Month-by-month solar power, as ranked by AC output, in Rapid City. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Rapid City (SD) has a average annual solar AC output value of 6156.28 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Rapid City is July with an average of 614.16 kWhac, followed by August at 607.94 kWhac and September at 583.86 kWhac. [2]
The three months that historically average the lowest average solar output levels in Rapid City (South Dakota) are December with an average of 392.84 kWhac, followed by January with an average of 403.69 kWhac and November at 421.41 kWhac. [2]
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Vote now: Given all of the data and analysis provided for Rapid City, is solar power a good choice for residents of this city?
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The city of Rapid City, SD in Pennington County has an approximate population of 67,956. [6]
To learn more about solar energy and solar power Rapid City, SD, or for more solar-related resources for Rapid City, visit the U.S. Energy Information Administration.
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