See the chart below to see how different types of solar panel installations compare in Saint Francis.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Saint Francis, SD data, solar panels that always track the sun throughout the day will produce the maximum solar energy output in Saint Francis. [1]
Saint Francis has an average monthly Global Horizontal Irradiance (GHI) of 4.32 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 18% less than the average monthly Direct Normal Irradiance (DNI) of 5.3 kWh/m2/day. [1]
Solar installations in Saint Francis that are always titled at the latitude of Saint Francis (Average Tilt at Latitude or ATaL) average 5.1 kWh/m2/day, or about 18% greater than the average monthly GHI of 4.32 kWh/m2/day and approximately 4% less than the average monthly DNI of 5.3 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 Saint Francis.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Saint Francis, SD has a average annual solar radiation value of 5.38 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Saint Francis is July with an average of 6.74 kWh/m2/day, followed by August at 6.59 kWh/m2/day and June at 6.36 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Saint Francis (South Dakota) are December with an average of 3.57 kWh/m2/day, followed by January with an average of 3.84 kWh/m2/day and November at 4.14 kWh/m2/day. [1]
The average monthly solar radiation level in Saint Francis, SD, of 5.38 kilowatt hours per square meter per day (kWh/m2/day) is approximately 37% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 19% 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 Saint Francis 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 Saint Francis, SD at this current time.
Monthly AC solar system output averages for Saint Francis (sd). Month-by-month solar power, as ranked by AC output, in Saint Francis. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Saint Francis (SD) has a average annual solar AC output value of 6148.12 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Saint Francis is July with an average of 621.41 kWhac, followed by August at 605.04 kWhac and May at 582.01 kWhac. [2]
The three months that historically average the lowest average solar output levels in Saint Francis (South Dakota) are December with an average of 368.36 kWhac, followed by January with an average of 399.73 kWhac and November at 410.45 kWhac. [2]
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The town of Saint Francis, SD in Todd County has an approximate population of 709. [6]
To learn more about solar energy and solar power Saint Francis, SD, or for more solar-related resources for Saint Francis, visit the U.S. Energy Information Administration.
Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.
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