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Solar Power in 20817 (Bethesda, MD)

Solar Energy in 20817

Sorry, historical solar radition values for 20817 are currently unavailable, please check back later.

Solar Panels in 20817

Solar panels in 20817 that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in 20817

The total length of the day in 20817 (Bethesda, MD) today (May 17, 2021) will be 14 hours and 23 minutes. [More]

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20817 Solar Energy

Solar Energy in 20817 (Bethesda, MD)

Solar Energy Data for 20817

See the chart below to see how different types of solar panel installations compare in 20817.

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


Solar Energy Analysis for 20817

Solar Radiation Data in 20817

Based on historical 20817 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 20817. [1]

The region associated with 20817 has an average monthly Global Horizontal Irradiance (GHI) of 4.15 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 3% less than the average monthly Direct Normal Irradiance (DNI) of 4.27 kWh/m2/day. [1]

Solar installations in 20817 that are always titled at the latitude of Bethesda (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 14% greater than the average monthly DNI of 4.27 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 20817

Solar Radiation Data in 20817

See the chart below for monthly solar radiation levels in 20817.

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

Solar Radiation Analysis for 20817

Solar Radiation Data in 20817

Sorry, it is not possible to complete our solar radiation analysis for 20817 at this time.

Historical solar radiation data for 20817 is not currently available.

Please check back later.

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Solar Power Comparison: 20817 vs. the U.S.

Solar Power Levels in 20817

Sorry, solar radiation data for 20817 is not currently available. Please try again later.

Solar Power: 20817 vs. the U.S.

Below is a month-by-month comparison of how average 20817 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 20817

Sunrise / Sunset in 20817

  • Sunrise/Sunset for May 17, 2021 [2]
    • Sunrise: 9:53 am
    • Sunset: 12:16 am
    • Solar Noon: 5:05 pm
    • Length of Day: 14:23
Solar Energy Statistics for 20817

Best Months for Solar in 20817

  • Top Solar Power Months Historically [1]
    • Solar Radiation n/a
    • ATaL: July (5.55 kWh/m2/day)
    • DNI: March (4.66 kWh/m2/day)
    • GHI: June (6.08 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in 20817

We do not currently have data on solar panel installations in 20817 at this current time.

However, 20817 is in Montgomery County and Montgomery County (MD) has at least 0 solar insallations right now. [1]

Solar Power Output in 20817

The Power of Solar in 20817

Monthly AC solar system output averages for 20817. Month-by-month solar power, as ranked by AC output, in 20817. [2]

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

Solar Output Analysis for 20817

Solar Radiation Data in 20817

Sorry, it is not possible to complete our solar radiation analysis for 20817 at this time.

Historical solar radiation data for 20817 is not currently available.

Please check back later.

Weather Forecast for 20817 [5]

Mon May 17
69°F
Overcast Clouds
Min: 50°F
Max: 69°F
Light breeze: 4 mps SSE
Precip.: n/a
Humidity: 47%
Cloud cover: 89%
Tue May 18
75°F
Overcast Clouds
Min: 52°F
Max: 78°F
Light breeze: 4 mps SW
Precip.: n/a
Humidity: 44%
Cloud cover: 96%
Wed May 19
83°F
Scattered Clouds
Min: 57°F
Max: 83°F
Light breeze: 3 mps SSW
Precip.: n/a
Humidity: 34%
Cloud cover: 42%
Thu May 20
83°F
Overcast Clouds
Min: 60°F
Max: 83°F
Calm: 3 mps SSW
Precip.: n/a
Humidity: 40%
Cloud cover: 99%
Fri May 21
82°F
Light Rain
Min: 65°F
Max: 82°F
Light breeze: 5 mps E
Precip.: Chance of Rain
Humidity: 50%
Cloud cover: 100%
Sat May 22
76°F
Moderate Rain
Min: 63°F
Max: 77°F
Light breeze: 6 mps NW
Precip.: Chance of Rain
Humidity: 78%
Cloud cover: 67%

More about 20817

About 20817

The ZIP code 20817 is associated with the city of Bethesda in Montgomery County in Maryland.

20817 Solar Power

20817 Solar Energy & Power

To learn more about solar energy and solar power in 20817, or for more solar-related resources for MD, check out the U.S. Energy Information Administration.

Did you know?

Solar cells convert sunlight into electricity through a physical process known as the photovoltaic effect.

Cities in Maryland

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References