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Solar Power in 22040 (Falls Church, VA)

Solar Energy in 22040

The month of July has the highest historical solar radition values in 22040 with an average of 5.81 kWh/m2/day. [More]

Solar Panels in 22040

Solar panels in 22040 that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in 22040

The total length of the day in 22040 (Falls Church, VA) today (May 07, 2025) will be 14 hours and 7 minutes. [More]

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22040 Solar Energy

Solar Energy in 22040 (Falls Church, VA)

Solar Energy Data for 22040

See the chart below to see how different types of solar panel installations compare in 22040.

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


Solar Energy Analysis for 22040

Solar Radiation Data in 22040

Based on historical 22040 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 22040. [1]

The region associated with 22040 has an average monthly Global Horizontal Irradiance (GHI) of 4.17 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 2% less than the average monthly Direct Normal Irradiance (DNI) of 4.26 kWh/m2/day. [1]

Solar installations in 22040 that are always titled at the latitude of Falls Church (Average Tilt at Latitude or ATaL) average 4.89 kWh/m2/day, or about 17% greater than the average monthly GHI of 4.17 kWh/m2/day and approximately 15% greater than the average monthly DNI of 4.26 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 22040

Solar Radiation Data in 22040

See the chart below for monthly solar radiation levels in 22040.

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

Solar Radiation Analysis for 22040

Solar Radiation Data in 22040

The region associated with 22040 has a average annual solar radiation value of 4.98 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in 22040 is July with an average of 5.81 kWh/m2/day, followed by June at 5.68 kWh/m2/day and August at 5.58 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in 22040 are December with an average of 3.67 kWh/m2/day, followed by January with an average of 3.8 kWh/m2/day and November at 4.22 kWh/m2/day. [1]

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Solar Power Comparison: 22040 vs. the U.S.

Solar Power Levels in 22040

The average monthly solar radiation level in 22040, of 4.98 kilowatt hours per square meter per day (kWh/m2/day) is approximately 27% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 25% 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: 22040 vs. the U.S.

Below is a month-by-month comparison of how average 22040 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 22040

Sunrise / Sunset in 22040

  • Sunrise/Sunset for May 07, 2025 [2]
    • Sunrise: 6:01 am
    • Sunset: 8:08 pm
    • Length of Day: 14:7
Solar Energy Statistics for 22040

Best Months for Solar in 22040

  • Top Solar Power Months Historically [1]
    • Solar Radiation July (5.81 kWh/m2/day)
    • ATaL: July (5.58 kWh/m2/day)
    • DNI: July (4.67 kWh/m2/day)
    • GHI: June (6.11 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in 22040

We do not have data on solar panel installations in ZIP Code 22040 at the current time.

Solar Power Output in 22040

The Power of Solar in 22040

Monthly AC solar system output averages for 22040. Month-by-month solar power, as ranked by AC output, in 22040. [2]

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

Solar Output Analysis for 22040

Solar Radiation Data in 22040

22040 has a average annual solar AC output value of 5650.67 kilowatt hours (AC). [2]

The month with the highest historical solar power output in 22040 is July with an average of 532.82 kWhac, followed by May at 524.76 kWhac and April at 517.39 kWhac. [2]

The three months that historically average the lowest average solar output levels in 22040 are December with an average of 370.2 kWhac, followed by January with an average of 392.92 kWhac and November at 402.96 kWhac. [2]

Weather Forecast for 22040 [5]

Wed May 7
72°F
Light Rain
Min: 55°F
Max: 73°F
Gentle Breeze: 9 mps NNW
Precip.: Chance of Rain
Humidity: 54%
Cloud cover: 7%
Thu May 8
75°F
Moderate Rain
Min: 58°F
Max: 77°F
Gentle Breeze: 8 mps ENE
Precip.: Chance of Rain
Humidity: 47%
Cloud cover: 92%
Fri May 9
55°F
Moderate Rain
Min: 51°F
Max: 63°F
Gentle Breeze: 11 mps NNW
Precip.: Chance of Rain
Humidity: 97%
Cloud cover: 100%
Sat May 10
65°F
Broken Clouds
Min: 46°F
Max: 68°F
Gentle Breeze: 12 mps NW
Precip.: n/a
Humidity: 38%
Cloud cover: 59%
Sun May 11
75°F
Broken Clouds
Min: 52°F
Max: 75°F
Light breeze: 5 mps SE
Precip.: n/a
Humidity: 39%
Cloud cover: 59%
Mon May 12
61°F
Light Rain
Min: 55°F
Max: 67°F
Light breeze: 6 mps S
Precip.: Chance of Rain
Humidity: 66%
Cloud cover: 100%

More about 22040

About 22040

The ZIP code 22040 is associated with the city of Falls Church in Falls Church (city) County in Virginia.

22040 Solar Power

22040 Solar Energy & Power

To learn more about solar energy and solar power in 22040, 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

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