See the chart below to see how different types of solar panel installations compare in 59931.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical 59931 data, solar panels that always track the sun throughout the day will produce the maximum solar energy output in 59931. [1]
The region associated with 59931 has an average monthly Global Horizontal Irradiance (GHI) of 3.76 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 18% less than the average monthly Direct Normal Irradiance (DNI) of 4.58 kWh/m2/day. [1]
Solar installations in 59931 that are always titled at the latitude of Rollins (Average Tilt at Latitude or ATaL) average 4.5 kWh/m2/day, or about 20% greater than the average monthly GHI of 3.76 kWh/m2/day and approximately 2% less than the average monthly DNI of 4.58 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 59931.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
The region associated with 59931 has a average annual solar radiation value of 4.37 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 59931 is July with an average of 6.85 kWh/m2/day, followed by August at 6.44 kWh/m2/day and May at 5.68 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 59931 are December with an average of 1.71 kWh/m2/day, followed by January with an average of 1.79 kWh/m2/day and November at 2.37 kWh/m2/day. [1]
The average monthly solar radiation level in 59931, of 4.37 kilowatt hours per square meter per day (kWh/m2/day) is approximately 11% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 34% 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 59931 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 have data on solar panel installations in ZIP Code 59931 at the current time.
Monthly AC solar system output averages for 59931. Month-by-month solar power, as ranked by AC output, in 59931. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
59931 has a average annual solar AC output value of 4886.63 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 59931 is July with an average of 617.45 kWhac, followed by August at 578.13 kWhac and May at 534.22 kWhac. [2]
The three months that historically average the lowest average solar output levels in 59931 are December with an average of 176.18 kWhac, followed by January with an average of 184.03 kWhac and November at 232.72 kWhac. [2]
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The ZIP code 59931 is associated with the city of Rollins in Lake County in Montana.
To learn more about solar energy and solar power in 59931, or for more solar-related resources for MT, check out the U.S. Energy Information Administration.
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