Solar Energy & Solar Power Resources

Solar Power in 21561 (Swanton, MD)

Solar Energy in 21561

Sorry, historical solar radition values for 21561 are currently unavailable, please check back later.

Solar Panels in 21561

Solar panels in 21561 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 21561

The total length of the day in 21561 (Swanton, MD) today (March 11, 2026) will be 11 hours and 49 minutes. [More]

Solar Energy in 21561 (Swanton, MD)

Solar Energy Data for 21561

See the chart below to see how different types of solar panel installations compare in 21561.

Historical solar power output data for Swanton is not currently available.

Solar Energy Analysis for 21561

Sorry, it is not possible to complete our solar energy analysis for 21561 at this time.

Please check back later.

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 21561

Solar Radiation Data in 21561

See the chart below for monthly solar radiation levels in 21561.

Sorry, data is not currently available.

Solar Radiation Analysis for 21561

Sorry, it is not possible to complete our solar radiation analysis for 21561 at this time.

Historical solar radiation data for 21561 is not currently available.

Please check back later.

Solar Power Comparison: 21561 vs. the U.S.

Solar Power Levels in 21561

Sorry, solar radiation data for 21561 is not currently available.

Solar Power: 21561 vs. the U.S.

Below is a month-by-month comparison of how average 21561 solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city with historically low levels (WA). ^[1]

Sorry, solar radiation data for Maryland is not currently available.

Solar Data & Statistics for 21561

Sunrise / Sunset in 21561

Sunrise/Sunset for March 11, 2026 ^[2]
- Sunrise: 7:32 am
- Sunset: 7:21 pm
- Length of Day: 11:49

Best Months for Solar in 21561

Monthly data not currently available.

Solar Panel Installs in 21561

We do not have data on solar panel installations in ZIP Code 21561 at the current time.

Solar Power Output in 21561

The Power of Solar in 21561

Monthly AC solar system output averages for 21561. Month-by-month solar power, as ranked by AC output, in 21561. ^[2]

AC output data is not currently available.

Solar Output Analysis for 21561

Sorry, it is not possible to complete our solar radiation analysis for 21561 at this time.

Historical solar radiation data for 21561 is not currently available.

Please check back later.

Weather Forecast for 21561 ^[5]

Wed Mar 11

66°F

Moderate Rain
Min: 54°F
Max: 74°F

Fresh Breeze: 21 mps WSW
Precip.: Chance of Rain
Humidity: 89%
Cloud cover: 100%

Thu Mar 12

30°F

Rain And Snow
Min: 26°F
Max: 58°F

Fresh Breeze: 19 mps WNW
Precip.: Chance of Rain
Humidity: 74%
Cloud cover: 100%

Fri Mar 13

49°F

Rain And Snow
Min: 27°F
Max: 49°F

Fresh Breeze: 23 mps W
Precip.: Chance of Rain
Humidity: 32%
Cloud cover: 100%

Sat Mar 14

40°F

Few Clouds
Min: 25°F
Max: 41°F

Fresh Breeze: 22 mps W
Precip.: n/a
Humidity: 40%
Cloud cover: 18%

Sun Mar 15

58°F

Overcast Clouds
Min: 31°F
Max: 58°F

Fresh Breeze: 18 mps SSW
Precip.: n/a
Humidity: 63%
Cloud cover: 100%

Mon Mar 16

28°F

Rain And Snow
Min: 17°F
Max: 58°F

Strong breeze: 25 mps W
Precip.: Chance of Rain
Humidity: 58%
Cloud cover: 100%

More about 21561

About 21561

The ZIP code 21561 is associated with the city of Swanton in Garrett County in Maryland.

21561 Solar Energy & Power

To learn more about solar energy and solar power in 21561, or for more solar-related resources for MD, check out the U.S. Energy Information Administration.