Solar Energy & Solar Power Resources

Solar Power in 37939 (Knoxville, TN)

Solar Energy in 37939

Sorry, historical solar radition values for 37939 are currently unavailable, please check back later.

Solar Panels in 37939

Solar panels in 37939 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 37939

The total length of the day in 37939 (Knoxville, TN) today (July 29, 2026) will be 14 hours and 5 minutes. [More]

Solar Energy in 37939 (Knoxville, TN)

Solar Energy Data for 37939

See the chart below to see how different types of solar panel installations compare in 37939.

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

Solar Energy Analysis for 37939

Sorry, it is not possible to complete our solar energy analysis for 37939 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 37939

Solar Radiation Data in 37939

See the chart below for monthly solar radiation levels in 37939.

Sorry, data is not currently available.

Solar Radiation Analysis for 37939

Sorry, it is not possible to complete our solar radiation analysis for 37939 at this time.

Historical solar radiation data for 37939 is not currently available.

Please check back later.

Solar Power Comparison: 37939 vs. the U.S.

Solar Power Levels in 37939

Sorry, solar radiation data for 37939 is not currently available.

Solar Power: 37939 vs. the U.S.

Below is a month-by-month comparison of how average 37939 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 37939

Sunrise / Sunset in 37939

Sunrise/Sunset for July 29, 2026 ^[2]
- Sunrise: 6:39 am
- Sunset: 8:44 pm
- Length of Day: 14:5

Best Months for Solar in 37939

Monthly data not currently available.

Solar Panel Installs in 37939

We do not have data on solar panel installations in ZIP Code 37939 at the current time.

Solar Power Output in 37939

The Power of Solar in 37939

Monthly AC solar system output averages for 37939. Month-by-month solar power, as ranked by AC output, in 37939. ^[2]

AC output data is not currently available.

Solar Output Analysis for 37939

Sorry, it is not possible to complete our solar radiation analysis for 37939 at this time.

Historical solar radiation data for 37939 is not currently available.

Please check back later.

Weather Forecast for 37939 ^[5]

Wed Jul 29

87°F

Sky Is Clear
Min: 72°F
Max: 90°F

Gentle Breeze: 10 mps N
Precip.: n/a
Humidity: 51%
Cloud cover: 2%

Thu Jul 30

85°F

Sky Is Clear
Min: 65°F
Max: 86°F

Light breeze: 6 mps ENE
Precip.: n/a
Humidity: 44%
Cloud cover: 0%

Fri Jul 31

85°F

Broken Clouds
Min: 63°F
Max: 89°F

Light breeze: 6 mps WSW
Precip.: n/a
Humidity: 39%
Cloud cover: 66%

Sat Aug 1

66°F

Heavy Intensity Rain
Min: 65°F
Max: 73°F

Light breeze: 5 mps NNE
Precip.: Chance of Rain
Humidity: 97%
Cloud cover: 100%

Sun Aug 2

80°F

Light Rain
Min: 67°F
Max: 80°F

Light breeze: 4 mps NNW
Precip.: Chance of Rain
Humidity: 75%
Cloud cover: 75%

Mon Aug 3

86°F

Overcast Clouds
Min: 68°F
Max: 88°F

Light breeze: 7 mps NNE
Precip.: n/a
Humidity: 56%
Cloud cover: 91%

More about 37939

About 37939

The ZIP code 37939 is associated with the city of Knoxville in Knox County in Tennessee.

37939 Solar Energy & Power

To learn more about solar energy and solar power in 37939, or for more solar-related resources for TN, check out the U.S. Energy Information Administration.