See the chart below to see how different types of solar panel installations compare in 97239.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical 97239 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 97239. [1]
The region associated with 97239 has an average monthly Global Horizontal Irradiance (GHI) of 3.54 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 5% greater than the average monthly Direct Normal Irradiance (DNI) of 3.38 kWh/m2/day. [1]
Solar installations in 97239 that are always titled at the latitude of Portland (Average Tilt at Latitude or ATaL) average 4.04 kWh/m2/day, or about 14% greater than the average monthly GHI of 3.54 kWh/m2/day and approximately 20% greater than the average monthly DNI of 3.38 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 97239.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
The region associated with 97239 has a average annual solar radiation value of 4.23 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 97239 is July with an average of 6.63 kWh/m2/day, followed by August at 6.39 kWh/m2/day and September at 5.63 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 97239 are December with an average of 2.11 kWh/m2/day, followed by January with an average of 2.21 kWh/m2/day and November at 2.28 kWh/m2/day. [1]
The average monthly solar radiation level in 97239, of 4.23 kilowatt hours per square meter per day (kWh/m2/day) is approximately 8% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 36% 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 97239 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 97239 at the current time.
Monthly AC solar system output averages for 97239. Month-by-month solar power, as ranked by AC output, in 97239. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
97239 has a average annual solar AC output value of 4697.16 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 97239 is July with an average of 593.29 kWhac, followed by August at 578.48 kWhac and September at 496.04 kWhac. [2]
The three months that historically average the lowest average solar output levels in 97239 are December with an average of 211.8 kWhac, followed by November with an average of 216.43 kWhac and January at 223.56 kWhac. [2]
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The ZIP code 97239 is associated with the city of Portland in Multnomah County in Oregon.
To learn more about solar energy and solar power in 97239, or for more solar-related resources for OR, check out the U.S. Energy Information Administration.
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