See the chart below to see how different types of solar panel installations compare in 98003.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical 98003 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 98003. [1]
The region associated with 98003 has an average monthly Global Horizontal Irradiance (GHI) of 3.47 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 4% greater than the average monthly Direct Normal Irradiance (DNI) of 3.33 kWh/m2/day. [1]
Solar installations in 98003 that are always titled at the latitude of Federal Way (Average Tilt at Latitude or ATaL) average 3.97 kWh/m2/day, or about 14% greater than the average monthly GHI of 3.47 kWh/m2/day and approximately 19% greater than the average monthly DNI of 3.33 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 98003.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
The region associated with 98003 has a average annual solar radiation value of 4.03 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 98003 is August with an average of 6.19 kWh/m2/day, followed by July at 6.13 kWh/m2/day and May at 5.45 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 98003 are December with an average of 1.72 kWh/m2/day, followed by January with an average of 1.87 kWh/m2/day and November at 2.2 kWh/m2/day. [1]
The average monthly solar radiation level in 98003, of 4.03 kilowatt hours per square meter per day (kWh/m2/day) is approximately 3% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 39% 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 98003 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 98003 at the current time.
Monthly AC solar system output averages for 98003. Month-by-month solar power, as ranked by AC output, in 98003. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
98003 has a average annual solar AC output value of 4506.79 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 98003 is August with an average of 566.09 kWhac, followed by July at 559.76 kWhac and May at 513.08 kWhac. [2]
The three months that historically average the lowest average solar output levels in 98003 are December with an average of 173.41 kWhac, followed by January with an average of 185.82 kWhac and November at 211.87 kWhac. [2]
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The ZIP code 98003 is associated with the city of Federal Way in King County in Washington.
To learn more about solar energy and solar power in 98003, or for more solar-related resources for WA, 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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