Based on historical Willow Lake, SD data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Willow Lake.[1]
Willow Lake has an average monthly Global Horizontal Irradiance (GHI) of 3.94 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 10% less than the average monthly Direct Normal Irradiance (DNI) of 4.37 kWh/m2/day. [1]
Solar installations in Willow Lake that are always titled at the latitude of Willow Lake (Average Tilt at Latitude or ATaL) average 4.65 kWh/m2/day, or about 18% greater than the average monthly GHI of 3.94 kWh/m2/day and approximately 6% greater than the average monthly DNI of 4.37 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 Willow Lake
Solar Radiation Data in Willow Lake, SD
See the chart below for monthly solar radiation levels in Willow Lake.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Willow Lake, SD
Willow Lake, SD has a average annual solar radiation value of 4.97 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Willow Lake is July with an average of 6.64 kWh/m2/day, followed by August at 6.18 kWh/m2/day and May at 5.95 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Willow Lake (South Dakota) are December with an average of 2.85 kWh/m2/day, followed by January with an average of 3.24 kWh/m2/day and November at 3.74 kWh/m2/day. [1]
Solar Power Comparison: Willow Lake vs. the U.S.
Solar Power Levels in Willow Lake
The average monthly solar radiation level in Willow Lake, SD, of 4.97 kilowatt hours per square meter per day (kWh/m2/day) is approximately 26% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 25% 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: Willow Lake vs. the U.S.
Below is a month-by-month comparison of how average Willow Lake 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 Willow Lake, SD at this current time.
Solar Power Output in Willow Lake
The Power of Solar in Willow Lake, SD
Monthly AC solar system output averages for Willow Lake (sd). Month-by-month solar power, as ranked by AC output, in Willow Lake. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Willow Lake, SD
Willow Lake (SD) has a average annual solar AC output value of 5749.64 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Willow Lake is July with an average of 615.87 kWhac, followed by August at 579.79 kWhac and May at 576.62 kWhac. [2]
The three months that historically average the lowest average solar output levels in Willow Lake (South Dakota) are December with an average of 299.09 kWhac, followed by January with an average of 345.33 kWhac and November at 376.34 kWhac. [2]
Cost of Utilities in Willow Lake
Willow Lake Electricity Costs
Sorry, Willow Lake residential electricity prices are currently unavailable.
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Solar Power Poll: Willow Lake
Vote now: Given all of the data and analysis provided for Willow Lake, is solar power a good choice for residents of this city?
Willow Lake Natural Gas Costs
Sorry, South Dakota residential natural gas prices are currently unavailable.
The city of Willow Lake, SD in Clark County has an approximate population of 263. [6]
Willow Lake, SD Solar Energy
To learn more about solar energy and solar power Willow Lake, SD, or for more solar-related resources for Willow Lake, 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.
