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Solar Power in 20192 (Herndon, VA)

Solar Energy in 20192

Sorry, historical solar radition values for 20192 are currently unavailable, please check back later.

Solar Panels in 20192

Solar panels in 20192 that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in 20192

The total length of the day in 20192 (Herndon, VA) today (September 25, 2020) will be 11 hours and 59 minutes. [More]

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20192 Solar Energy

Solar Energy in 20192 (Herndon, VA)

Solar Energy Data for 20192

See the chart below to see how different types of solar panel installations compare in 20192.

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


Solar Energy Analysis for 20192

Solar Radiation Data in 20192

Based on historical 20192 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 20192. [1]

The region associated with 20192 has an average monthly Global Horizontal Irradiance (GHI) of 4.17 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 4% less than the average monthly Direct Normal Irradiance (DNI) of 4.34 kWh/m2/day. [1]

Solar installations in 20192 that are always titled at the latitude of Herndon (Average Tilt at Latitude or ATaL) average 4.91 kWh/m2/day, or about 18% greater than the average monthly GHI of 4.17 kWh/m2/day and approximately 13% greater than the average monthly DNI of 4.34 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 20192

Solar Radiation Data in 20192

See the chart below for monthly solar radiation levels in 20192.

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

Solar Radiation Analysis for 20192

Solar Radiation Data in 20192

Sorry, it is not possible to complete our solar radiation analysis for 20192 at this time.

Historical solar radiation data for 20192 is not currently available.

Please check back later.

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Solar Power Comparison: 20192 vs. the U.S.

Solar Power Levels in 20192

Sorry, solar radiation data for 20192 is not currently available. Please try again later.

Solar Power: 20192 vs. the U.S.

Below is a month-by-month comparison of how average 20192 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 20192

Sunrise / Sunset in 20192

  • Sunrise/Sunset for September 25, 2020 [2]
    • Sunrise: 11:00 am
    • Sunset: 11:00 pm
    • Solar Noon: 5:00 pm
    • Length of Day: 11:59
Solar Energy Statistics for 20192

Best Months for Solar in 20192

  • Top Solar Power Months Historically [1]
    • Solar Radiation n/a
    • ATaL: July (5.57 kWh/m2/day)
    • DNI: July (4.74 kWh/m2/day)
    • GHI: June (6.1 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in 20192

We do not currently have data on solar panel installations in 20192 at this current time.

However, 20192 is in Fairfax County and Fairfax County (VA) has at least 0 solar insallations right now. [1]

Solar Power Output in 20192

The Power of Solar in 20192

Monthly AC solar system output averages for 20192. Month-by-month solar power, as ranked by AC output, in 20192. [2]

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

Solar Output Analysis for 20192

Solar Radiation Data in 20192

Sorry, it is not possible to complete our solar radiation analysis for 20192 at this time.

Historical solar radiation data for 20192 is not currently available.

Please check back later.

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Weather Forecast for 20192 [5]

Fri Sep 25
72°F
Light Rain
Min: 58°F
Max: 72°F
Gentle Breeze: 9 mps SSW
Precip.: Chance of Rain
Humidity: 64%
Cloud cover: 98%
Sat Sep 26
71°F
Moderate Rain
Min: 63°F
Max: 74°F
Light breeze: 3 mps SSE
Precip.: Chance of Rain
Humidity: 80%
Cloud cover: 95%
Sun Sep 27
70°F
Light Rain
Min: 65°F
Max: 75°F
Calm: 3 mps S
Precip.: Chance of Rain
Humidity: 86%
Cloud cover: 100%
Mon Sep 28
70°F
Overcast Clouds
Min: 65°F
Max: 81°F
Light breeze: 3 mps SSE
Precip.: n/a
Humidity: 81%
Cloud cover: 100%
Tue Sep 29
74°F
Heavy Intensity Rain
Min: 60°F
Max: 74°F
Gentle Breeze: 11 mps S
Precip.: Chance of Rain
Humidity: 83%
Cloud cover: 100%
Wed Sep 30
62°F
Heavy Intensity Rain
Min: 55°F
Max: 68°F
Light breeze: 7 mps W
Precip.: Chance of Rain
Humidity: 65%
Cloud cover: 44%

More about 20192

About 20192

The ZIP code 20192 is associated with the city of Herndon in Fairfax County in Virginia.

20192 Solar Power

20192 Solar Energy & Power

To learn more about solar energy and solar power in 20192, or for more solar-related resources for VA, check out the U.S. Energy Information Administration.

Did you know?

The largest solar power plant in the world covers 1000 acres & is located in the Mojave Desert in California.

Cities in Virginia

More ZIP Codes in VA


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References