Solar Energy & Solar Power Resources

Solar Power in 21758 (Knoxville, MD)

Solar Energy in 21758

Sorry, historical solar radition values for 21758 are currently unavailable, please check back later.

Solar Panels in 21758

Solar panels in 21758 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 21758

The total length of the day in 21758 (Knoxville, MD) today (June 14, 2026) will be 14 hours and 59 minutes. [More]

Solar Energy in 21758 (Knoxville, MD)

Solar Energy Data for 21758

See the chart below to see how different types of solar panel installations compare in 21758.

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

Solar Energy Analysis for 21758

Sorry, it is not possible to complete our solar energy analysis for 21758 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 21758

Solar Radiation Data in 21758

See the chart below for monthly solar radiation levels in 21758.

Sorry, data is not currently available.

Solar Radiation Analysis for 21758

Sorry, it is not possible to complete our solar radiation analysis for 21758 at this time.

Historical solar radiation data for 21758 is not currently available.

Please check back later.

Solar Power Comparison: 21758 vs. the U.S.

Solar Power Levels in 21758

Sorry, solar radiation data for 21758 is not currently available.

Solar Power: 21758 vs. the U.S.

Below is a month-by-month comparison of how average 21758 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 21758

Sunrise / Sunset in 21758

Sunrise/Sunset for June 14, 2026 ^[2]
- Sunrise: 5:41 am
- Sunset: 8:40 pm
- Length of Day: 14:59

Best Months for Solar in 21758

Monthly data not currently available.

Solar Panel Installs in 21758

We do not have data on solar panel installations in ZIP Code 21758 at the current time.

Solar Power Output in 21758

The Power of Solar in 21758

Monthly AC solar system output averages for 21758. Month-by-month solar power, as ranked by AC output, in 21758. ^[2]

AC output data is not currently available.

Solar Output Analysis for 21758

Sorry, it is not possible to complete our solar radiation analysis for 21758 at this time.

Historical solar radiation data for 21758 is not currently available.

Please check back later.

Weather Forecast for 21758 ^[5]

Sun Jun 14

87°F

Moderate Rain
Min: 63°F
Max: 87°F

Moderate breeze: 18 mps W
Precip.: Chance of Rain
Humidity: 53%
Cloud cover: 90%

Mon Jun 15

76°F

Light Rain
Min: 57°F
Max: 77°F

Moderate breeze: 14 mps NW
Precip.: Chance of Rain
Humidity: 48%
Cloud cover: 22%

Tue Jun 16

72°F

Sky Is Clear
Min: 49°F
Max: 75°F

Gentle Breeze: 9 mps E
Precip.: n/a
Humidity: 43%
Cloud cover: 2%

Wed Jun 17

80°F

Light Rain
Min: 58°F
Max: 83°F

Gentle Breeze: 12 mps WSW
Precip.: Chance of Rain
Humidity: 52%
Cloud cover: 100%

Thu Jun 18

89°F

Light Rain
Min: 65°F
Max: 89°F

Fresh Breeze: 19 mps W
Precip.: Chance of Rain
Humidity: 53%
Cloud cover: 99%

Fri Jun 19

74°F

Moderate Rain
Min: 60°F
Max: 77°F

Fresh Breeze: 18 mps NW
Precip.: Chance of Rain
Humidity: 77%
Cloud cover: 98%

More about 21758

About 21758

The ZIP code 21758 is associated with the city of Knoxville in Frederick County in Maryland.

21758 Solar Energy & Power

To learn more about solar energy and solar power in 21758, or for more solar-related resources for MD, check out the U.S. Energy Information Administration.