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Solar Power in 37721 (Corryton, TN)

Solar Energy in 37721

The month of September has the highest historical solar radition values in 37721 with an average of 5.88 kWh/m2/day. [More]

Solar Panels in 37721

Solar panels in 37721 that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in 37721

The total length of the day in 37721 (Corryton, TN) today (July 19, 2025) will be 14 hours and 20 minutes. [More]

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37721 Solar Energy

Solar Energy in 37721 (Corryton, TN)

Solar Energy Data for 37721

See the chart below to see how different types of solar panel installations compare in 37721.

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


Solar Energy Analysis for 37721

Solar Radiation Data in 37721

Based on historical 37721 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 37721. [1]

The region associated with 37721 has an average monthly Global Horizontal Irradiance (GHI) of 4.31 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 3% greater than the average monthly Direct Normal Irradiance (DNI) of 4.19 kWh/m2/day. [1]

Solar installations in 37721 that are always titled at the latitude of Corryton (Average Tilt at Latitude or ATaL) average 4.91 kWh/m2/day, or about 14% greater than the average monthly GHI of 4.31 kWh/m2/day and approximately 17% greater than the average monthly DNI of 4.19 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 37721

Solar Radiation Data in 37721

See the chart below for monthly solar radiation levels in 37721.

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

Solar Radiation Analysis for 37721

Solar Radiation Data in 37721

The region associated with 37721 has a average annual solar radiation value of 5.1 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in 37721 is September with an average of 5.88 kWh/m2/day, followed by August at 5.77 kWh/m2/day and April at 5.67 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in 37721 are December with an average of 3.43 kWh/m2/day, followed by January with an average of 4.03 kWh/m2/day and February at 4.49 kWh/m2/day. [1]

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Solar Power Comparison: 37721 vs. the U.S.

Solar Power Levels in 37721

The average monthly solar radiation level in 37721, of 5.1 kilowatt hours per square meter per day (kWh/m2/day) is approximately 30% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 23% 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: 37721 vs. the U.S.

Below is a month-by-month comparison of how average 37721 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 37721

Sunrise / Sunset in 37721

  • Sunrise/Sunset for July 19, 2025 [2]
    • Sunrise: 6:31 am
    • Sunset: 8:51 pm
    • Length of Day: 14:20
Solar Energy Statistics for 37721

Best Months for Solar in 37721

  • Top Solar Power Months Historically [1]
    • Solar Radiation September (5.88 kWh/m2/day)
    • ATaL: August (5.78 kWh/m2/day)
    • DNI: June (4.79 kWh/m2/day)
    • GHI: June (6.27 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in 37721

We do not have data on solar panel installations in ZIP Code 37721 at the current time.

Solar Power Output in 37721

The Power of Solar in 37721

Monthly AC solar system output averages for 37721. Month-by-month solar power, as ranked by AC output, in 37721. [2]

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

Solar Output Analysis for 37721

Solar Radiation Data in 37721

37721 has a average annual solar AC output value of 5619.84 kilowatt hours (AC). [2]

The month with the highest historical solar power output in 37721 is May with an average of 520.4 kWhac, followed by April at 518.01 kWhac and September at 517.5 kWhac. [2]

The three months that historically average the lowest average solar output levels in 37721 are December with an average of 332.68 kWhac, followed by February with an average of 397.63 kWhac and January at 399.87 kWhac. [2]

Weather Forecast for 37721 [5]

Sat Jul 19
82°F
Moderate Rain
Min: 73°F
Max: 85°F
Moderate breeze: 14 mps SW
Precip.: Chance of Rain
Humidity: 90%
Cloud cover: 89%
Sun Jul 20
82°F
Moderate Rain
Min: 71°F
Max: 87°F
Light breeze: 7 mps SW
Precip.: Chance of Rain
Humidity: 79%
Cloud cover: 100%
Mon Jul 21
79°F
Moderate Rain
Min: 70°F
Max: 88°F
Light breeze: 6 mps N
Precip.: Chance of Rain
Humidity: 82%
Cloud cover: 99%
Tue Jul 22
91°F
Light Rain
Min: 70°F
Max: 91°F
Light breeze: 5 mps NNE
Precip.: Chance of Rain
Humidity: 53%
Cloud cover: 68%
Wed Jul 23
91°F
Light Rain
Min: 69°F
Max: 91°F
Light breeze: 6 mps ESE
Precip.: Chance of Rain
Humidity: 50%
Cloud cover: 29%
Thu Jul 24
93°F
Few Clouds
Min: 75°F
Max: 93°F
Light breeze: 6 mps SW
Precip.: n/a
Humidity: 43%
Cloud cover: 23%

More about 37721

About 37721

The ZIP code 37721 is associated with the city of Corryton in Knox County in Tennessee.

37721 Solar Power

37721 Solar Energy & Power

To learn more about solar energy and solar power in 37721, or for more solar-related resources for TN, check out the U.S. Energy Information Administration.

Did you know?

Solar cells convert sunlight into electricity through a physical process known as the photovoltaic effect.

Cities in Tennessee

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References

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