Solar Energy & Solar Power Resources

Solar Power in 66621 (Topeka, KS)

Solar Energy in 66621

Sorry, historical solar radition values for 66621 are currently unavailable, please check back later.

Solar Panels in 66621

Solar panels in 66621 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 66621

The total length of the day in 66621 (Topeka, KS) today (October 23, 2026) will be 10 hours and 53 minutes. [More]

Solar Energy in 66621 (Topeka, KS)

Solar Energy Data for 66621

See the chart below to see how different types of solar panel installations compare in 66621.

Historical solar power output data for Topeka is not currently available.

Solar Energy Analysis for 66621

Sorry, it is not possible to complete our solar energy analysis for 66621 at this time.

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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 66621

Solar Radiation Data in 66621

See the chart below for monthly solar radiation levels in 66621.

Sorry, data is not currently available.

Solar Radiation Analysis for 66621

Sorry, it is not possible to complete our solar radiation analysis for 66621 at this time.

Historical solar radiation data for 66621 is not currently available.

Please check back later.

Solar Power Comparison: 66621 vs. the U.S.

Solar Power Levels in 66621

Sorry, solar radiation data for 66621 is not currently available.

Solar Power: 66621 vs. the U.S.

Below is a month-by-month comparison of how average 66621 solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city with historically low levels (WA). ^[1]

Sorry, solar radiation data for Kansas is not currently available.

Solar Data & Statistics for 66621

Sunrise / Sunset in 66621

Sunrise/Sunset for October 23, 2026 ^[2]
- Sunrise: 7:40 am
- Sunset: 6:33 pm
- Length of Day: 10:53

Best Months for Solar in 66621

Monthly data not currently available.

Solar Panel Installs in 66621

We do not have data on solar panel installations in ZIP Code 66621 at the current time.

Solar Power Output in 66621

The Power of Solar in 66621

Monthly AC solar system output averages for 66621. Month-by-month solar power, as ranked by AC output, in 66621. ^[2]

AC output data is not currently available.

Solar Output Analysis for 66621

Sorry, it is not possible to complete our solar radiation analysis for 66621 at this time.

Historical solar radiation data for 66621 is not currently available.

Please check back later.

Weather Forecast for 66621 ^[5]

Fri Oct 23

78°F

Scattered Clouds
Min: 55°F
Max: 79°F

Moderate breeze: 13 mps S
Precip.: n/a
Humidity: 44%
Cloud cover: 42%

Sat Oct 24

77°F

Broken Clouds
Min: 53°F
Max: 79°F

Gentle Breeze: 11 mps S
Precip.: n/a
Humidity: 44%
Cloud cover: 68%

Sun Oct 25

75°F

Overcast Clouds
Min: 57°F
Max: 77°F

Gentle Breeze: 8 mps S
Precip.: n/a
Humidity: 48%
Cloud cover: 97%

Mon Oct 26

75°F

Scattered Clouds
Min: 58°F
Max: 76°F

Gentle Breeze: 8 mps S
Precip.: n/a
Humidity: 48%
Cloud cover: 37%

Tue Oct 27

68°F

Light Rain
Min: 58°F
Max: 68°F

Gentle Breeze: 12 mps SSW
Precip.: Chance of Rain
Humidity: 56%
Cloud cover: 100%

Wed Oct 28

70°F

Moderate Rain
Min: 58°F
Max: 71°F

Moderate breeze: 15 mps WSW
Precip.: Chance of Rain
Humidity: 64%
Cloud cover: 95%

More about 66621

About 66621

The ZIP code 66621 is associated with the city of Topeka in Shawnee County in Kansas.

66621 Solar Energy & Power

To learn more about solar energy and solar power in 66621, or for more solar-related resources for KS, check out the U.S. Energy Information Administration.