Solar Energy & Solar Power Resources

Solar Power in 37938 (Knoxville, TN)

Solar Energy in 37938

Sorry, historical solar radition values for 37938 are currently unavailable, please check back later.

Solar Panels in 37938

Solar panels in 37938 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 37938

The total length of the day in 37938 (Knoxville, TN) today (September 25, 2026) will be 12 hours and 4 minutes. [More]

Solar Energy in 37938 (Knoxville, TN)

Solar Energy Data for 37938

See the chart below to see how different types of solar panel installations compare in 37938.

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

Solar Energy Analysis for 37938

Sorry, it is not possible to complete our solar energy analysis for 37938 at this time.

Please check back later.

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 37938

Solar Radiation Data in 37938

See the chart below for monthly solar radiation levels in 37938.

Sorry, data is not currently available.

Solar Radiation Analysis for 37938

Sorry, it is not possible to complete our solar radiation analysis for 37938 at this time.

Historical solar radiation data for 37938 is not currently available.

Please check back later.

Solar Power Comparison: 37938 vs. the U.S.

Solar Power Levels in 37938

Sorry, solar radiation data for 37938 is not currently available.

Solar Power: 37938 vs. the U.S.

Below is a month-by-month comparison of how average 37938 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 Tennessee is not currently available.

Solar Data & Statistics for 37938

Sunrise / Sunset in 37938

Sunrise/Sunset for September 25, 2026 ^[2]
- Sunrise: 7:25 am
- Sunset: 7:29 pm
- Length of Day: 12:4

Best Months for Solar in 37938

Monthly data not currently available.

Solar Panel Installs in 37938

We do not have data on solar panel installations in ZIP Code 37938 at the current time.

Solar Power Output in 37938

The Power of Solar in 37938

Monthly AC solar system output averages for 37938. Month-by-month solar power, as ranked by AC output, in 37938. ^[2]

AC output data is not currently available.

Solar Output Analysis for 37938

Sorry, it is not possible to complete our solar radiation analysis for 37938 at this time.

Historical solar radiation data for 37938 is not currently available.

Please check back later.

Weather Forecast for 37938 ^[5]

Fri Sep 25

67°F

Few Clouds
Min: 58°F
Max: 75°F

Gentle Breeze: 8 mps NNE
Precip.: n/a
Humidity: 71%
Cloud cover: 12%

Sat Sep 26

73°F

Sky Is Clear
Min: 54°F
Max: 76°F

Light breeze: 7 mps N
Precip.: n/a
Humidity: 47%
Cloud cover: 0%

Sun Sep 27

70°F

Sky Is Clear
Min: 52°F
Max: 73°F

Gentle Breeze: 8 mps N
Precip.: n/a
Humidity: 52%
Cloud cover: 0%

Mon Sep 28

72°F

Sky Is Clear
Min: 53°F
Max: 74°F

Light breeze: 5 mps N
Precip.: n/a
Humidity: 45%
Cloud cover: 0%

Tue Sep 29

77°F

Sky Is Clear
Min: 54°F
Max: 79°F

Light breeze: 4 mps NNE
Precip.: n/a
Humidity: 40%
Cloud cover: 0%

Wed Sep 30

82°F

Broken Clouds
Min: 56°F
Max: 83°F

Light breeze: 7 mps SW
Precip.: n/a
Humidity: 32%
Cloud cover: 57%

More about 37938

About 37938

The ZIP code 37938 is associated with the city of Knoxville in Knox County in Tennessee.

37938 Solar Energy & Power

To learn more about solar energy and solar power in 37938, or for more solar-related resources for TN, check out the U.S. Energy Information Administration.