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Solar Energy in Willis, KS

Solar Energy in Willis

The month of August has the highest historical solar radition values in Willis with an average of 6.17 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 (April 12, 2026) will be 13 hours and 11 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 4.23 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 8% less than the average monthly Direct Normal Irradiance (DNI) of 4.59 kWh/m2/day. [1]

Solar installations in Willis that are always titled at the latitude of Willis (Average Tilt at Latitude or ATaL) average 4.96 kWh/m2/day, or about 17% greater than the average monthly GHI of 4.23 kWh/m2/day and approximately 8% greater than the average monthly DNI of 4.59 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 5.25 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Willis is August with an average of 6.17 kWh/m2/day, followed by July at 6 kWh/m2/day and September at 6 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 3.8 kWh/m2/day, followed by January with an average of 4.06 kWh/m2/day and November at 4.39 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 5.25 kilowatt hours per square meter per day (kWh/m2/day) is approximately 34% 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 April 12, 2026 [2]
    • Sunrise: 6:47 am
    • Sunset: 7:58 pm
    • Length of Day: 13:11
Solar Energy Statistics for Willis

Best Months for Solar in Willis

  • Top Solar Power Months Historically [1]
    • Solar Radiation August (6.17 kWh/m2/day)
    • ATaL: July (5.89 kWh/m2/day)
    • DNI: July (5.86 kWh/m2/day)
    • GHI: July (6.39 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 5972.91 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Willis is August with an average of 574.38 kWhac, followed by July at 549.35 kWhac and September at 544.48 kWhac. [2]

The three months that historically average the lowest average solar output levels in Willis (Kansas) are December with an average of 391.51 kWhac, followed by January with an average of 417.26 kWhac and November at 427.32 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]

Sun Apr 12
66°F
Light Rain
Min: 65°F
Max: 74°F
Fresh Breeze: 24 mps SSW
Precip.: Chance of Rain
Humidity: 90%
Cloud cover: 100%
Mon Apr 13
78°F
Broken Clouds
Min: 66°F
Max: 80°F
Fresh Breeze: 23 mps SSW
Precip.: n/a
Humidity: 66%
Cloud cover: 61%
Tue Apr 14
81°F
Moderate Rain
Min: 64°F
Max: 84°F
Strong breeze: 26 mps SSW
Precip.: Chance of Rain
Humidity: 54%
Cloud cover: 100%
Wed Apr 15
77°F
Overcast Clouds
Min: 61°F
Max: 78°F
Fresh Breeze: 22 mps SW
Precip.: n/a
Humidity: 52%
Cloud cover: 98%
Thu Apr 16
78°F
Sky Is Clear
Min: 55°F
Max: 81°F
Moderate breeze: 14 mps SSE
Precip.: n/a
Humidity: 35%
Cloud cover: 0%
Fri Apr 17
78°F
Moderate Rain
Min: 67°F
Max: 78°F
Strong breeze: 26 mps SSW
Precip.: Chance of Rain
Humidity: 67%
Cloud cover: 99%

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?

Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.

Other Cities in Kansas

ZIP Codes in KS


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References

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