Based on historical 28733 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 28733.[1]
The region associated with 28733 has an average monthly Global Horizontal Irradiance (GHI) of 4.25 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 6% greater than the average monthly Direct Normal Irradiance (DNI) of 4.02 kWh/m2/day. [1]
Solar installations in 28733 that are always titled at the latitude of Fontana Dam (Average Tilt at Latitude or ATaL) average 4.83 kWh/m2/day, or about 14% greater than the average monthly GHI of 4.25 kWh/m2/day and approximately 20% greater than the average monthly DNI of 4.02 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 28733
Solar Radiation Data in 28733
See the chart below for monthly solar radiation levels in 28733.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for 28733
The region associated with 28733 has a average annual solar radiation value of 5.09 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 28733 is August with an average of 5.92 kWh/m2/day, followed by September at 5.71 kWh/m2/day and June at 5.68 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 28733 are December with an average of 3.98 kWh/m2/day, followed by January with an average of 4.04 kWh/m2/day and November at 4.44 kWh/m2/day. [1]
Solar Power Comparison: 28733 vs. the U.S.
Solar Power Levels in 28733
The average monthly solar radiation level in 28733, of 5.09 kilowatt hours per square meter per day (kWh/m2/day) is approximately 30% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 23% 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: 28733 vs. the U.S.
Below is a month-by-month comparison of how average 28733 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 28733 at the current time.
Solar Power Output in 28733
The Power of Solar in 28733
Monthly AC solar system output averages for 28733. Month-by-month solar power, as ranked by AC output, in 28733. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for 28733
28733 has a average annual solar AC output value of 5578.44 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 28733 is August with an average of 527.02 kWhac, followed by May at 506.98 kWhac and September at 502.27 kWhac. [2]
The three months that historically average the lowest average solar output levels in 28733 are December with an average of 386.52 kWhac, followed by January with an average of 394.51 kWhac and February at 404.11 kWhac. [2]
Light breeze: 5 mps ENE
Precip.: Chance of Rain
Humidity: 56%
Cloud cover: 100%
Sun May 11
72°F
Light Rain
Min: 49°F
Max: 72°F
Light breeze: 7 mps ESE
Precip.: Chance of Rain
Humidity: 48%
Cloud cover: 96%
Mon May 12
59°F
Light Rain
Min: 53°F
Max: 60°F
Light breeze: 6 mps ESE
Precip.: Chance of Rain
Humidity: 96%
Cloud cover: 100%
Tue May 13
58°F
Moderate Rain
Min: 54°F
Max: 63°F
Light breeze: 5 mps SE
Precip.: Chance of Rain
Humidity: 91%
Cloud cover: 100%
More about 28733
About 28733
The ZIP code 28733 is associated with the city of Fontana Dam in Graham County in North Carolina.
28733 Solar Energy & Power
To learn more about solar energy and solar power in 28733, or for more solar-related resources for NC, check out the U.S. Energy Information Administration.
Did you know?
Various missions to space by different countries are known to utilize solar energy as a main power source.