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Solar Energy in Willis, KS

Solar Energy in Willis

The month of July has the highest historical solar radition values in Willis with an average of 6.05 kWh/m2/day. [More]

Solar Panels in Willis

Solar panels in Willis that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in Willis

The total length of the day in Willis, KS today (October 07, 2025) will be 11 hours and 33 minutes. [More]

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Willis, KS Solar Energy

Solar Power in Willis, KS

Solar Energy Data in Willis, KS

See the chart below to see how different types of solar panel installations compare in Willis.

* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.


Solar Energy Analysis for Willis, KS

Solar Radiation Data in Willis

Based on historical Willis, KS data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Willis. [1]

Willis has an average monthly Global Horizontal Irradiance (GHI) of 4.22 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 7% less than the average monthly Direct Normal Irradiance (DNI) of 4.55 kWh/m2/day. [1]

Solar installations in Willis that are always titled at the latitude of Willis (Average Tilt at Latitude or ATaL) average 4.95 kWh/m2/day, or about 17% greater than the average monthly GHI of 4.22 kWh/m2/day and approximately 9% greater than the average monthly DNI of 4.55 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 Willis

Solar Radiation Data in Willis, KS

See the chart below for monthly solar radiation levels in Willis.

* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)

Solar Radiation Analysis for Willis, KS

Solar Radiation Data in Willis

Willis, KS has a average annual solar radiation value of 5.21 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Willis is July with an average of 6.05 kWh/m2/day, followed by August at 6.02 kWh/m2/day and September at 5.99 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in Willis (Kansas) are December with an average of 3.75 kWh/m2/day, followed by January with an average of 4.01 kWh/m2/day and November at 4.26 kWh/m2/day. [1]

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Solar Power Comparison: Willis vs. the U.S.

Solar Power Levels in Willis

The average monthly solar radiation level in Willis, KS, of 5.21 kilowatt hours per square meter per day (kWh/m2/day) is approximately 33% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 21% 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: Willis vs. the U.S.

Below is a month-by-month comparison of how average Willis 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).

Solar Data & Statistics for Willis

Sunrise / Sunset in Willis

  • Sunrise/Sunset for October 07, 2025 [2]
    • Sunrise: 7:23 am
    • Sunset: 6:56 pm
    • Length of Day: 11:33
Solar Energy Statistics for Willis

Best Months for Solar in Willis

  • Top Solar Power Months Historically [1]
    • Solar Radiation July (6.05 kWh/m2/day)
    • ATaL: July (5.92 kWh/m2/day)
    • DNI: July (5.89 kWh/m2/day)
    • GHI: July (6.41 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Willis

We do not currently have data on solar panel installations in the city of Willis, KS at this current time.

Solar Power Output in Willis

The Power of Solar in Willis, KS

Monthly AC solar system output averages for Willis (ks). Month-by-month solar power, as ranked by AC output, in Willis. [2]

* Amounts listed in kWhac (kilowatt hours (AC))

Solar Output Analysis for Willis, KS

Solar Radiation Data in Willis

Willis (KS) has a average annual solar AC output value of 5923.88 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Willis is July with an average of 557.77 kWhac, followed by August at 550.54 kWhac and June at 538.92 kWhac. [2]

The three months that historically average the lowest average solar output levels in Willis (Kansas) are December with an average of 385.14 kWhac, followed by November with an average of 414.31 kWhac and January at 419.06 kWhac. [2]

Cost of Utilities in Willis

Willis Electricity Costs

Sorry, Willis residential electricity prices are currently unavailable.

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Solar Power Poll: Willis

Vote now: Given all of the data and analysis provided for Willis, is solar power a good choice for residents of this city?

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Willis Natural Gas Costs

Sorry, Kansas residential natural gas prices are currently unavailable.

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Weather Forecast for Willis, KS [5]

Tue Oct 7
64°F
Moderate Rain
Min: 54°F
Max: 67°F
Gentle Breeze: 12 mps NNE
Precip.: Chance of Rain
Humidity: 57%
Cloud cover: 65%
Wed Oct 8
68°F
Sky Is Clear
Min: 49°F
Max: 71°F
Gentle Breeze: 9 mps SE
Precip.: n/a
Humidity: 34%
Cloud cover: 0%
Thu Oct 9
72°F
Light Rain
Min: 55°F
Max: 77°F
Moderate breeze: 16 mps SSE
Precip.: Chance of Rain
Humidity: 34%
Cloud cover: 78%
Fri Oct 10
75°F
Moderate Rain
Min: 58°F
Max: 79°F
Moderate breeze: 13 mps SSW
Precip.: Chance of Rain
Humidity: 55%
Cloud cover: 38%
Sat Oct 11
75°F
Overcast Clouds
Min: 61°F
Max: 79°F
Moderate breeze: 13 mps SE
Precip.: n/a
Humidity: 53%
Cloud cover: 94%
Sun Oct 12
84°F
Few Clouds
Min: 66°F
Max: 87°F
Strong breeze: 25 mps S
Precip.: n/a
Humidity: 33%
Cloud cover: 24%

More about Willis

About Willis

The city of Willis, KS in Brown County has an approximate population of 38. [6]

Willis Solar Power

Willis, KS Solar Energy

To learn more about solar energy and solar power Willis, KS, or for more solar-related resources for Willis, 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.

Other Cities in Kansas

ZIP Codes in KS


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References

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