See the chart below to see how different types of solar panel installations compare in 98021.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical 98021 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 98021. [1]
The region associated with 98021 has an average monthly Global Horizontal Irradiance (GHI) of 3.35 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 3% less than the average monthly Direct Normal Irradiance (DNI) of 3.44 kWh/m2/day. [1]
Solar installations in 98021 that are always titled at the latitude of Bothell (Average Tilt at Latitude or ATaL) average 3.85 kWh/m2/day, or about 15% greater than the average monthly GHI of 3.35 kWh/m2/day and approximately 12% greater than the average monthly DNI of 3.44 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 98021.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
The region associated with 98021 has a average annual solar radiation value of 3.76 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 98021 is July with an average of 6.02 kWh/m2/day, followed by August at 5.72 kWh/m2/day and June at 4.97 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 98021 are January with an average of 1.63 kWh/m2/day, followed by December with an average of 1.82 kWh/m2/day and November at 1.86 kWh/m2/day. [1]
The average monthly solar radiation level in 98021, of 3.76 kilowatt hours per square meter per day (kWh/m2/day) is approximately 4% less than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 43% 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 98021 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 98021 at the current time.
Monthly AC solar system output averages for 98021. Month-by-month solar power, as ranked by AC output, in 98021. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
98021 has a average annual solar AC output value of 4209.95 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 98021 is July with an average of 548.88 kWhac, followed by August at 525.22 kWhac and May at 457.24 kWhac. [2]
The three months that historically average the lowest average solar output levels in 98021 are January with an average of 162.78 kWhac, followed by November with an average of 178.7 kWhac and December at 183.38 kWhac. [2]
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The ZIP code 98021 is associated with the city of Bothell in Snohomish County in Washington.
To learn more about solar energy and solar power in 98021, or for more solar-related resources for WA, check out the U.S. Energy Information Administration.
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