Based on historical 21930 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 21930.[1]
The region associated with 21930 has an average monthly Global Horizontal Irradiance (GHI) of 4.11 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 1% greater than the average monthly Direct Normal Irradiance (DNI) of 4.08 kWh/m2/day. [1]
Solar installations in 21930 that are always titled at the latitude of Georgetown (Average Tilt at Latitude or ATaL) average 4.81 kWh/m2/day, or about 17% greater than the average monthly GHI of 4.11 kWh/m2/day and approximately 18% greater than the average monthly DNI of 4.08 kWh/m2/day. [1]
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 21930
Solar Radiation Data in 21930
See the chart below for monthly solar radiation levels in 21930.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for 21930
The region associated with 21930 has a average annual solar radiation value of 5.04 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 21930 is July with an average of 5.93 kWh/m2/day, followed by August at 5.81 kWh/m2/day and May at 5.73 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 21930 are December with an average of 3.61 kWh/m2/day, followed by January with an average of 3.78 kWh/m2/day and November at 4.24 kWh/m2/day. [1]
Solar Power Comparison: 21930 vs. the U.S.
Solar Power Levels in 21930
The average monthly solar radiation level in 21930, of 5.04 kilowatt hours per square meter per day (kWh/m2/day) is approximately 28% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 24% less than the average level of 6.61 kWh/m2/day in a city with historically high levels (NV). [1]
→ Values listed as 0 (zero) are not available (N/A).
Solar Power: 21930 vs. the U.S.
Below is a month-by-month comparison of how average 21930 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).
We do not have data on solar panel installations in ZIP Code 21930 at the current time.
Solar Power Output in 21930
The Power of Solar in 21930
Monthly AC solar system output averages for 21930. Month-by-month solar power, as ranked by AC output, in 21930. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for 21930
21930 has a average annual solar AC output value of 5737.57 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 21930 is July with an average of 546.98 kWhac, followed by May at 539.79 kWhac and April at 537.3 kWhac. [2]
The three months that historically average the lowest average solar output levels in 21930 are December with an average of 371.42 kWhac, followed by January with an average of 396.73 kWhac and November at 404.9 kWhac. [2]
Gentle Breeze: 12 mps ENE
Precip.: Chance of Snow
Humidity: 90%
Cloud cover: 100%
Thu Feb 13
42°F
Moderate Rain
Min: 33°F
Max: 42°F
Moderate breeze: 14 mps E
Precip.: Chance of Rain
Humidity: 100%
Cloud cover: 100%
More about 21930
About 21930
The ZIP code 21930 is associated with the city of Georgetown in Cecil County in Maryland.
21930 Solar Energy & Power
To learn more about solar energy and solar power in 21930, or for more solar-related resources for MD, check out the U.S. Energy Information Administration.
Did you know?
Some tax incentives and rebate programs are designed to spur the use of solar energy. These vary by location.