See the chart below to see how different types of solar panel installations compare in 51638.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical 51638 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 51638. [1]
The region associated with 51638 has an average monthly Global Horizontal Irradiance (GHI) of 4.14 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 7% less than the average monthly Direct Normal Irradiance (DNI) of 4.43 kWh/m2/day. [1]
Solar installations in 51638 that are always titled at the latitude of Essex (Average Tilt at Latitude or ATaL) average 4.85 kWh/m2/day, or about 17% greater than the average monthly GHI of 4.14 kWh/m2/day and approximately 9% greater than the average monthly DNI of 4.43 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 51638.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
The region associated with 51638 has a average annual solar radiation value of 5.18 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 51638 is August with an average of 6.24 kWh/m2/day, followed by July at 6.17 kWh/m2/day and June at 6.08 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 51638 are December with an average of 3.53 kWh/m2/day, followed by January with an average of 3.85 kWh/m2/day and November at 4.31 kWh/m2/day. [1]
The average monthly solar radiation level in 51638, of 5.18 kilowatt hours per square meter per day (kWh/m2/day) is approximately 32% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 22% 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 51638 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 51638 at the current time.
Monthly AC solar system output averages for 51638. Month-by-month solar power, as ranked by AC output, in 51638. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
51638 has a average annual solar AC output value of 5934.76 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 51638 is August with an average of 576.67 kWhac, followed by July at 567.68 kWhac and May at 551.71 kWhac. [2]
The three months that historically average the lowest average solar output levels in 51638 are December with an average of 370.87 kWhac, followed by February with an average of 404.16 kWhac and January at 405.73 kWhac. [2]
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The ZIP code 51638 is associated with the city of Essex in Page County in Iowa.
To learn more about solar energy and solar power in 51638, or for more solar-related resources for IA, check out the U.S. Energy Information Administration.
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