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Solar Energy in Knoxville, TN

Solar Energy in Knoxville

The month of July has the highest historical solar radition values in Knoxville with an average of 5.57 kWh/m2/day. [More]

Solar Panels in Knoxville

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

Sunrise & Sunset in Knoxville

The total length of the day in Knoxville, TN today (February 19, 2019) will be 11 hours and 03 minutes. [More]

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Knoxville, TN Solar Energy

Solar Power in Knoxville, TN

Solar Energy Data in Knoxville, TN

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

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


Solar Energy Analysis for Knoxville, TN

Solar Radiation Data in Knoxville

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

Knoxville has an average monthly Global Horizontal Irradiance (GHI) of 4.34 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 5% greater than the average monthly Direct Normal Irradiance (DNI) of 4.15 kWh/m2/day. [1]

Solar installations in Knoxville that are always titled at the latitude of Knoxville (Average Tilt at Latitude or ATaL) average 4.93 kWh/m2/day, or about 14% greater than the average monthly GHI of 4.34 kWh/m2/day and approximately 19% greater than the average monthly DNI of 4.15 kWh/m2/day. [1]

* See glossary & definitions below.

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 Knoxville

Solar Radiation Data in Knoxville, TN

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

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

Solar Radiation Analysis for Knoxville, TN

Solar Radiation Data in Knoxville

Knoxville, TN has a average annual solar radiation value of 4.65 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Knoxville is July with an average of 5.57 kWh/m2/day, followed by June at 5.57 kWh/m2/day and April at 5.34 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in Knoxville (Tennessee) are January with an average of 3.2 kWh/m2/day, followed by December with an average of 3.22 kWh/m2/day and November at 3.65 kWh/m2/day. [1]

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

Solar Power Levels in Knoxville

The average monthly solar radiation level in Knoxville, TN, of 4.65 kilowatt hours per square meter per day (kWh/m2/day) is approximately 25% greater than the average level of 3.73 kWh/m2/day in a city with historically low levels (WA) and is approximately 30% less than the average level of 6.6 kWh/m2/day in a city with historically high levels (NV). [1]


→ Values listed as 0 (zero) are not available (N/A).

Solar Power: vs. the U.S.

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

Sunrise / Sunset in Knoxville

  • Sunrise/Sunset for February 19, 2019 [2]
    • Sunrise: 12:17 pm
    • Sunset: 11:21 pm
    • Solar Noon: 5:49 pm
    • Length of Day: 11:03
Solar Energy Statistics for Knoxville

Best Months for Solar in Knoxville

  • Top Solar Power Months Historically [1]
    • Solar Radiation July (5.57 kWh/m2/day)
    • ATaL: August (5.82 kWh/m2/day)
    • DNI: June (4.83 kWh/m2/day)
    • GHI: June (6.32 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Knoxville

We do not currently have data on solar panel installations in the city of Knoxville, TN at this current time.

However, Knoxville is in Knox County and Knox County has at least 22 solar insallations right now. [1]

Solar Power Output in Knoxville

The Power of Solar in Knoxville, TN

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

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

Solar Output Analysis for Knoxville, TN

Solar Radiation Data in Knoxville

Knoxville (TN) has a average annual solar AC output value of 5328.03 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Knoxville is July with an average of 523.68 kWhac, followed by June at 507.89 kWhac and May at 507.39 kWhac. [2]

The three months that historically average the lowest average solar output levels in Knoxville (Tennessee) are December with an average of 327.74 kWhac, followed by January with an average of 332.89 kWhac and November at 347.98 kWhac. [2]

Cost of Utilities in Knoxville

Knoxville Electricity Costs

Electricity prices (residential) in Knoxville averaged 11.06 cents per kilowatthour (¢/kWh) in November 2018, which was about 15% less than the overall U.S. average residential electricity rate of 12.95¢/kWh in November. [3]

Solar Power Poll: Knoxville

Vote now: Given all of the data and analysis provided for Knoxville, is solar power a good choice for residents of this city?

Yes, solar power is a great option  
No, solar power isn't a good option

Knoxville Natural Gas Costs

Natural gas prices (residential) in Tennessee averaged $8.77 per thousand cubic feet (Mcf) in November 2018, which was approximately 7% less than the overall U.S. average residential natural gas rate of $9.43 per Mcf in November. [4]

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Solar Businesses in Knoxville

Solar Energy Contractors in Knoxville

Contractors & builders that specialize in solar panel installations in or near Knoxville, TN.

Sorry, no local solar energy contractors found.

Our search for solar contractors companies located in Knoxville produced no matches.

Solar Energy Equipment in Knoxville

Businesses that sell solar energy equipment and/or solar parts in or near Knoxville, TN.

Sorry, no local business selling solar equipment were found.

Our search for companies selling solar parts located in Knoxville produced no matches.

Energy Conservation Consultants in Knoxville

Energy conservation specialists that offer consulting services in or near Knoxville, TN.

Sorry, no local energy conservation specialists were found.

Our search for energy conservation specialists located in Knoxville produced no matches.

Weather Forecast for Knoxville, TN [5]

Tue Feb 19
37°F
Heavy Intensity Rain
Min: 37°F
Max: 39°F
Fresh Breeze: 8 mps NE
Precip.: Chance of Rain
Humidity: 98%
Cloud cover: 92%
Wed Feb 20
63°F
Heavy Intensity Rain
Min: 46°F
Max: 63°F
High wind, near gale: 14 mps SSW
Precip.: Chance of Rain
Humidity: 79%
Cloud cover: 92%
Thu Feb 21
56°F
Light Rain
Min: 47°F
Max: 59°F
Gentle Breeze: 4 mps NNE
Precip.: Chance of Rain
Humidity: 88%
Cloud cover: 20%
Fri Feb 22
49°F
Moderate Rain
Min: 44°F
Max: 49°F
Moderate breeze: 5 mps NE
Precip.: Chance of Rain
Humidity: 0%
Cloud cover: 99%
Sat Feb 23
52°F
Very Heavy Rain
Min: 46°F
Max: 60°F
Calm: 1 mps NNW
Precip.: Chance of Rain
Humidity: 0%
Cloud cover: 100%
Sun Feb 24
61°F
Moderate Rain
Min: 52°F
Max: 61°F
: 7 mps SW
Precip.: Chance of Rain
Humidity: 0%
Cloud cover: 100%

More about Knoxville

About Knoxville

The city of Knoxville, TN in Knox County has an approximate population of 178,874. [6]

Knoxville Solar Power

Knoxville, TN Solar Energy

To learn more about solar energy and solar power Knoxville, TN, or for more solar-related resources for Knoxville, visit the U.S. Energy Information Administration.

Did you know?

About half of the sun's energy is absorbed by the Earth's surface; about 30 percent is reflected back from the surface.

Other Cities in Tennessee

ZIP Codes in TN


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References