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Solar Energy in Roanoke, VA

Solar Energy in Roanoke

The month of May has the highest historical solar radition values in Roanoke with an average of 5.6 kWh/m2/day. [More]

Solar Panels in Roanoke

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

Sunrise & Sunset in Roanoke

The total length of the day in Roanoke, VA today (March 29, 2024) will be 12 hours and 32 minutes. [More]

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Roanoke, VA Solar Energy

Solar Power in Roanoke, VA

Solar Energy Data in Roanoke, VA

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

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


Solar Energy Analysis for Roanoke, VA

Solar Radiation Data in Roanoke

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

Roanoke has an average monthly Global Horizontal Irradiance (GHI) of 4.22 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 0% less than the average monthly Direct Normal Irradiance (DNI) of 4.23 kWh/m2/day. [1]

Solar installations in Roanoke that are always titled at the latitude of Roanoke (Average Tilt at Latitude or ATaL) average 4.92 kWh/m2/day, or about 17% greater than the average monthly GHI of 4.22 kWh/m2/day and approximately 16% greater than the average monthly DNI of 4.23 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 Roanoke

Solar Radiation Data in Roanoke, VA

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

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

Solar Radiation Analysis for Roanoke, VA

Solar Radiation Data in Roanoke

Roanoke, VA has a average annual solar radiation value of 5.08 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Roanoke is May with an average of 5.6 kWh/m2/day, followed by June at 5.6 kWh/m2/day and August at 5.55 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in Roanoke (Virginia) are December with an average of 3.92 kWh/m2/day, followed by January with an average of 4.2 kWh/m2/day and February at 4.76 kWh/m2/day. [1]

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

Solar Power Levels in Roanoke

The average monthly solar radiation level in Roanoke, VA, of 5.08 kilowatt hours per square meter per day (kWh/m2/day) is approximately 29% 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: Roanoke vs. the U.S.

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

Sunrise / Sunset in Roanoke

  • Sunrise/Sunset for March 29, 2024 [2]
    • Sunrise: 7:08 am
    • Sunset: 7:40 pm
    • Length of Day: 12:32
Solar Energy Statistics for Roanoke

Best Months for Solar in Roanoke

  • Top Solar Power Months Historically [1]
    • Solar Radiation May (5.6 kWh/m2/day)
    • ATaL: August (5.48 kWh/m2/day)
    • DNI: March (4.62 kWh/m2/day)
    • GHI: June (5.99 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Roanoke

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

Solar Power Output in Roanoke

The Power of Solar in Roanoke, VA

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

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

Solar Output Analysis for Roanoke, VA

Solar Radiation Data in Roanoke

Roanoke (VA) has a average annual solar AC output value of 5570.84 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Roanoke is May with an average of 514.67 kWhac, followed by August at 495.7 kWhac and March at 494.73 kWhac. [2]

The three months that historically average the lowest average solar output levels in Roanoke (Virginia) are December with an average of 378.9 kWhac, followed by January with an average of 412.98 kWhac and February at 415.42 kWhac. [2]

Cost of Utilities in Roanoke

Roanoke Electricity Costs

Sorry, Roanoke residential electricity prices are currently unavailable.

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Solar Power Poll: Roanoke

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

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Roanoke Natural Gas Costs

Sorry, Virginia residential natural gas prices are currently unavailable.

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Weather Forecast for Roanoke, VA [5]

Fri Mar 29
60°F
Few Clouds
Min: 44°F
Max: 63°F
Moderate breeze: 16 mps WNW
Precip.: n/a
Humidity: 43%
Cloud cover: 13%
Sat Mar 30
66°F
Overcast Clouds
Min: 46°F
Max: 71°F
Moderate breeze: 13 mps WSW
Precip.: n/a
Humidity: 40%
Cloud cover: 100%
Sun Mar 31
73°F
Light Rain
Min: 57°F
Max: 73°F
Gentle Breeze: 9 mps W
Precip.: Chance of Rain
Humidity: 53%
Cloud cover: 74%
Mon Apr 1
75°F
Light Rain
Min: 60°F
Max: 76°F
Gentle Breeze: 8 mps WNW
Precip.: Chance of Rain
Humidity: 54%
Cloud cover: 100%
Tue Apr 2
82°F
Few Clouds
Min: 60°F
Max: 82°F
Moderate breeze: 15 mps WSW
Precip.: n/a
Humidity: 43%
Cloud cover: 13%
Wed Apr 3
48°F
Rain And Snow
Min: 41°F
Max: 65°F
Moderate breeze: 17 mps NW
Precip.: Chance of Rain
Humidity: 59%
Cloud cover: 72%

More about Roanoke

About Roanoke

The city of Roanoke, VA in Roanoke County has an approximate population of 97,032. [6]

Roanoke Solar Power

Roanoke, VA Solar Energy

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

Did you know?

Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.

Other Cities in Virginia

ZIP Codes in VA


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References

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