Solar Energy & Solar Power Resources

Solar Power in 21781 (Saint James, MD)

Solar Energy in 21781

Sorry, historical solar radition values for 21781 are currently unavailable, please check back later.

Solar Panels in 21781

Solar panels in 21781 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 21781

The total length of the day in 21781 (Saint James, MD) today (June 30, 2025) will be 14 hours and 59 minutes. [More]

Solar Energy in 21781 (Saint James, MD)

Solar Energy Data for 21781

See the chart below to see how different types of solar panel installations compare in 21781.

Historical solar power output data for Saint James is not currently available.

Solar Energy Analysis for 21781

Sorry, it is not possible to complete our solar energy analysis for 21781 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 21781

Solar Radiation Data in 21781

See the chart below for monthly solar radiation levels in 21781.

Sorry, data is not currently available.

Solar Radiation Analysis for 21781

Sorry, it is not possible to complete our solar radiation analysis for 21781 at this time.

Historical solar radiation data for 21781 is not currently available.

Please check back later.

Solar Power Comparison: 21781 vs. the U.S.

Solar Power Levels in 21781

Sorry, solar radiation data for 21781 is not currently available.

Solar Power: 21781 vs. the U.S.

Below is a month-by-month comparison of how average 21781 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 21781

Sunrise / Sunset in 21781

Sunrise/Sunset for June 30, 2025 ^[2]
- Sunrise: 5:45 am
- Sunset: 8:44 pm
- Length of Day: 14:59

Best Months for Solar in 21781

Monthly data not currently available.

Solar Panel Installs in 21781

We do not have data on solar panel installations in ZIP Code 21781 at the current time.

Solar Power Output in 21781

The Power of Solar in 21781

Monthly AC solar system output averages for 21781. Month-by-month solar power, as ranked by AC output, in 21781. ^[2]

AC output data is not currently available.

Solar Output Analysis for 21781

Sorry, it is not possible to complete our solar radiation analysis for 21781 at this time.

Historical solar radiation data for 21781 is not currently available.

Please check back later.

Weather Forecast for 21781 ^[5]

Mon Jun 30

89°F

Moderate Rain
Min: 71°F
Max: 89°F

Gentle Breeze: 12 mps NNE
Precip.: Chance of Rain
Humidity: 66%
Cloud cover: 100%

Tue Jul 1

81°F

Moderate Rain
Min: 70°F
Max: 84°F

Moderate breeze: 14 mps NW
Precip.: Chance of Rain
Humidity: 79%
Cloud cover: 100%

Wed Jul 2

81°F

Light Rain
Min: 67°F
Max: 83°F

Light breeze: 6 mps N
Precip.: Chance of Rain
Humidity: 62%
Cloud cover: 24%

Thu Jul 3

83°F

Few Clouds
Min: 65°F
Max: 85°F

Light breeze: 6 mps NW
Precip.: n/a
Humidity: 51%
Cloud cover: 12%

Fri Jul 4

85°F

Sky Is Clear
Min: 63°F
Max: 85°F

Light breeze: 6 mps SE
Precip.: n/a
Humidity: 54%
Cloud cover: 0%

Sat Jul 5

88°F

Light Rain
Min: 68°F
Max: 89°F

Light breeze: 7 mps ESE
Precip.: Chance of Rain
Humidity: 58%
Cloud cover: 38%

More about 21781

About 21781

The ZIP code 21781 is associated with the city of Saint James in Washington County in Maryland.

21781 Solar Energy & Power

To learn more about solar energy and solar power in 21781, or for more solar-related resources for MD, check out the U.S. Energy Information Administration.