Based on historical Duluth, MN data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Duluth.[1]
Duluth has an average monthly Global Horizontal Irradiance (GHI) of 3.64 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 8% less than the average monthly Direct Normal Irradiance (DNI) of 3.95 kWh/m2/day. [1]
Solar installations in Duluth that are always titled at the latitude of Duluth (Average Tilt at Latitude or ATaL) average 4.39 kWh/m2/day, or about 21% greater than the average monthly GHI of 3.64 kWh/m2/day and approximately 11% greater than the average monthly DNI of 3.95 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 Duluth
Solar Radiation Data in Duluth, MN
See the chart below for monthly solar radiation levels in Duluth.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Duluth, MN
Duluth, MN has a average annual solar radiation value of 4.6 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Duluth is July with an average of 6.06 kWh/m2/day, followed by August at 5.93 kWh/m2/day and April at 5.65 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Duluth (Minnesota) are December with an average of 2.31 kWh/m2/day, followed by November with an average of 2.78 kWh/m2/day and January at 2.9 kWh/m2/day. [1]
Solar Power Comparison: Duluth vs. the U.S.
Solar Power Levels in Duluth
The average monthly solar radiation level in Duluth, MN, of 4.6 kilowatt hours per square meter per day (kWh/m2/day) is approximately 17% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 30% 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: Duluth vs. the U.S.
Below is a month-by-month comparison of how average Duluth 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 Duluth, MN at this current time.
Solar Power Output in Duluth
The Power of Solar in Duluth, MN
Monthly AC solar system output averages for Duluth (mn). Month-by-month solar power, as ranked by AC output, in Duluth. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Duluth, MN
Duluth (MN) has a average annual solar AC output value of 5368.5 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Duluth is July with an average of 566.67 kWhac, followed by August at 552.85 kWhac and April at 544.92 kWhac. [2]
The three months that historically average the lowest average solar output levels in Duluth (Minnesota) are December with an average of 248.5 kWhac, followed by November with an average of 283.14 kWhac and January at 318.79 kWhac. [2]
Cost of Utilities in Duluth
Duluth Electricity Costs
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Solar Power Poll: Duluth
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Duluth Natural Gas Costs
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More about Duluth
About Duluth
The city of Duluth, MN in Saint Louis County has an approximate population of 86,265. [6]
Duluth, MN Solar Energy
To learn more about solar energy and solar power Duluth, MN, or for more solar-related resources for Duluth, 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.