Solar Energy & Solar Power Resources

Solar Power in 21661 (Rock Hall, MD)

Solar Energy in 21661

Sorry, historical solar radition values for 21661 are currently unavailable, please check back later.

Solar Panels in 21661

Solar panels in 21661 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 21661

The total length of the day in 21661 (Rock Hall, MD) today (September 28, 2026) will be 11 hours and 56 minutes. [More]

Solar Energy in 21661 (Rock Hall, MD)

Solar Energy Data for 21661

See the chart below to see how different types of solar panel installations compare in 21661.

Historical solar power output data for Rock Hall is not currently available.

Solar Energy Analysis for 21661

Sorry, it is not possible to complete our solar energy analysis for 21661 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 21661

Solar Radiation Data in 21661

See the chart below for monthly solar radiation levels in 21661.

Sorry, data is not currently available.

Solar Radiation Analysis for 21661

Sorry, it is not possible to complete our solar radiation analysis for 21661 at this time.

Historical solar radiation data for 21661 is not currently available.

Please check back later.

Solar Power Comparison: 21661 vs. the U.S.

Solar Power Levels in 21661

Sorry, solar radiation data for 21661 is not currently available.

Solar Power: 21661 vs. the U.S.

Below is a month-by-month comparison of how average 21661 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 21661

Sunrise / Sunset in 21661

Sunrise/Sunset for September 28, 2026 ^[2]
- Sunrise: 6:57 am
- Sunset: 6:53 pm
- Length of Day: 11:56

Best Months for Solar in 21661

Monthly data not currently available.

Solar Panel Installs in 21661

We do not have data on solar panel installations in ZIP Code 21661 at the current time.

Solar Power Output in 21661

The Power of Solar in 21661

Monthly AC solar system output averages for 21661. Month-by-month solar power, as ranked by AC output, in 21661. ^[2]

AC output data is not currently available.

Solar Output Analysis for 21661

Sorry, it is not possible to complete our solar radiation analysis for 21661 at this time.

Historical solar radiation data for 21661 is not currently available.

Please check back later.

Weather Forecast for 21661 ^[5]

Mon Sep 28

67°F

Light Rain
Min: 61°F
Max: 68°F

Fresh Breeze: 19 mps NNW
Precip.: Chance of Rain
Humidity: 84%
Cloud cover: 100%

Tue Sep 29

67°F

Broken Clouds
Min: 63°F
Max: 71°F

Gentle Breeze: 10 mps SSW
Precip.: n/a
Humidity: 80%
Cloud cover: 54%

Wed Sep 30

68°F

Broken Clouds
Min: 62°F
Max: 73°F

Moderate breeze: 12 mps S
Precip.: n/a
Humidity: 82%
Cloud cover: 59%

Thu Oct 1

71°F

Sky Is Clear
Min: 68°F
Max: 75°F

Moderate breeze: 14 mps S
Precip.: n/a
Humidity: 82%
Cloud cover: 4%

Fri Oct 2

70°F

Sky Is Clear
Min: 68°F
Max: 77°F

Moderate breeze: 14 mps S
Precip.: n/a
Humidity: 80%
Cloud cover: 4%

Sat Oct 3

65°F

Light Rain
Min: 65°F
Max: 71°F

Fresh Breeze: 19 mps NNE
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 95%

More about 21661

About 21661

The ZIP code 21661 is associated with the city of Rock Hall in Kent County in Maryland.

21661 Solar Energy & Power

To learn more about solar energy and solar power in 21661, or for more solar-related resources for MD, check out the U.S. Energy Information Administration.