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Solar Power in 20104 (Dulles, VA)

Solar Energy in 20104

Sorry, historical solar radition values for 20104 are currently unavailable, please check back later.

Solar Panels in 20104

Solar panels in 20104 that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in 20104

The total length of the day in 20104 (Dulles, VA) today (September 25, 2020) will be 11 hours and 59 minutes. [More]

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20104 Solar Energy

Solar Energy in 20104 (Dulles, VA)

Solar Energy Data for 20104

See the chart below to see how different types of solar panel installations compare in 20104.

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


Solar Energy Analysis for 20104

Solar Radiation Data in 20104

Based on historical 20104 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 20104. [1]

The region associated with 20104 has an average monthly Global Horizontal Irradiance (GHI) of 4.15 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 5% less than the average monthly Direct Normal Irradiance (DNI) of 4.36 kWh/m2/day. [1]

Solar installations in 20104 that are always titled at the latitude of Dulles (Average Tilt at Latitude or ATaL) average 4.88 kWh/m2/day, or about 18% greater than the average monthly GHI of 4.15 kWh/m2/day and approximately 12% greater than the average monthly DNI of 4.36 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 20104

Solar Radiation Data in 20104

See the chart below for monthly solar radiation levels in 20104.

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

Solar Radiation Analysis for 20104

Solar Radiation Data in 20104

Sorry, it is not possible to complete our solar radiation analysis for 20104 at this time.

Historical solar radiation data for 20104 is not currently available.

Please check back later.

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Solar Power Comparison: 20104 vs. the U.S.

Solar Power Levels in 20104

Sorry, solar radiation data for 20104 is not currently available. Please try again later.

Solar Power: 20104 vs. the U.S.

Below is a month-by-month comparison of how average 20104 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 20104

Sunrise / Sunset in 20104

  • Sunrise/Sunset for September 25, 2020 [2]
    • Sunrise: 11:02 am
    • Sunset: 11:01 pm
    • Solar Noon: 5:01 pm
    • Length of Day: 11:59
Solar Energy Statistics for 20104

Best Months for Solar in 20104

  • Top Solar Power Months Historically [1]
    • Solar Radiation n/a
    • ATaL: July (5.62 kWh/m2/day)
    • DNI: July (4.81 kWh/m2/day)
    • GHI: July (6.06 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in 20104

We do not currently have data on solar panel installations in 20104 at this current time.

However, 20104 is in Loudoun County and Loudoun County (VA) has at least 0 solar insallations right now. [1]

Solar Power Output in 20104

The Power of Solar in 20104

Monthly AC solar system output averages for 20104. Month-by-month solar power, as ranked by AC output, in 20104. [2]

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

Solar Output Analysis for 20104

Solar Radiation Data in 20104

Sorry, it is not possible to complete our solar radiation analysis for 20104 at this time.

Historical solar radiation data for 20104 is not currently available.

Please check back later.

Latest Solar News

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Weather Forecast for 20104 [5]

Fri Sep 25
71°F
Light Rain
Min: 55°F
Max: 71°F
Gentle Breeze: 10 mps S
Precip.: Chance of Rain
Humidity: 66%
Cloud cover: 100%
Sat Sep 26
70°F
Light Rain
Min: 61°F
Max: 74°F
Calm: 3 mps S
Precip.: Chance of Rain
Humidity: 86%
Cloud cover: 99%
Sun Sep 27
71°F
Light Rain
Min: 64°F
Max: 73°F
Light breeze: 6 mps S
Precip.: Chance of Rain
Humidity: 83%
Cloud cover: 100%
Mon Sep 28
79°F
Broken Clouds
Min: 63°F
Max: 79°F
Moderate breeze: 12 mps S
Precip.: n/a
Humidity: 61%
Cloud cover: 69%
Tue Sep 29
70°F
Heavy Intensity Rain
Min: 57°F
Max: 72°F
Moderate breeze: 13 mps S
Precip.: Chance of Rain
Humidity: 93%
Cloud cover: 100%
Wed Sep 30
66°F
Heavy Intensity Rain
Min: 53°F
Max: 66°F
Gentle Breeze: 9 mps WSW
Precip.: Chance of Rain
Humidity: 52%
Cloud cover: 16%

More about 20104

About 20104

The ZIP code 20104 is associated with the city of Dulles in Loudoun County in Virginia.

20104 Solar Power

20104 Solar Energy & Power

To learn more about solar energy and solar power in 20104, 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

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References