See the chart below to see how different types of solar panel installations compare in 28628.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical 28628 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 28628. [1]
The region associated with 28628 has an average monthly Global Horizontal Irradiance (GHI) of 4.43 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 1% less than the average monthly Direct Normal Irradiance (DNI) of 4.49 kWh/m2/day. [1]
Solar installations in 28628 that are always titled at the latitude of Glen Alpine (Average Tilt at Latitude or ATaL) average 5.13 kWh/m2/day, or about 16% greater than the average monthly GHI of 4.43 kWh/m2/day and approximately 14% greater than the average monthly DNI of 4.49 kWh/m2/day. [1]
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: 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: 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.
See the chart below for monthly solar radiation levels in 28628.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
The region associated with 28628 has a average annual solar radiation value of 5.28 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 28628 is May with an average of 5.73 kWh/m2/day, followed by August at 5.72 kWh/m2/day and June at 5.7 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 28628 are December with an average of 4.09 kWh/m2/day, followed by January with an average of 4.63 kWh/m2/day and November at 4.89 kWh/m2/day. [1]
The average monthly solar radiation level in 28628, of 5.28 kilowatt hours per square meter per day (kWh/m2/day) is approximately 34% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 20% 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).
Below is a month-by-month comparison of how average 28628 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 28628 at the current time.
Monthly AC solar system output averages for 28628. Month-by-month solar power, as ranked by AC output, in 28628. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
28628 has a average annual solar AC output value of 5749.29 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 28628 is May with an average of 523.29 kWhac, followed by October at 520.57 kWhac and March at 519.54 kWhac. [2]
The three months that historically average the lowest average solar output levels in 28628 are December with an average of 395.98 kWhac, followed by February with an average of 436.06 kWhac and November at 444.37 kWhac. [2]
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The ZIP code 28628 is associated with the city of Glen Alpine in Burke County in North Carolina.
To learn more about solar energy and solar power in 28628, or for more solar-related resources for NC, check out the U.S. Energy Information Administration.
Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.
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