Based on historical 98638 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 98638.[1]
The region associated with 98638 has an average monthly Global Horizontal Irradiance (GHI) of 3.14 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 12% greater than the average monthly Direct Normal Irradiance (DNI) of 2.81 kWh/m2/day. [1]
Solar installations in 98638 that are always titled at the latitude of Naselle (Average Tilt at Latitude or ATaL) average 3.6 kWh/m2/day, or about 15% greater than the average monthly GHI of 3.14 kWh/m2/day and approximately 28% greater than the average monthly DNI of 2.81 kWh/m2/day. [1]
Solar Energy Glossary
Global Horizontal Irradiance (GHI)
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 (DNI)
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 (ATaL)
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.
Solar Radiation Levels in 98638
Solar Radiation Data in 98638
See the chart below for monthly solar radiation levels in 98638.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for 98638
The region associated with 98638 has a average annual solar radiation value of 3.66 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 98638 is July with an average of 5.29 kWh/m2/day, followed by August at 5.23 kWh/m2/day and September at 4.91 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 98638 are December with an average of 1.7 kWh/m2/day, followed by January with an average of 1.94 kWh/m2/day and November at 2.02 kWh/m2/day. [1]
Solar Power Comparison: 98638 vs. the U.S.
Solar Power Levels in 98638
The average monthly solar radiation level in 98638, of 3.66 kilowatt hours per square meter per day (kWh/m2/day) is approximately 7% less than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 45% 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).
Solar Power: 98638 vs. the U.S.
Below is a month-by-month comparison of how average 98638 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 98638 at the current time.
Solar Power Output in 98638
The Power of Solar in 98638
Monthly AC solar system output averages for 98638. Month-by-month solar power, as ranked by AC output, in 98638. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for 98638
98638 has a average annual solar AC output value of 4116.92 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 98638 is July with an average of 493.69 kWhac, followed by August at 486.75 kWhac and September at 444.01 kWhac. [2]
The three months that historically average the lowest average solar output levels in 98638 are December with an average of 169.9 kWhac, followed by January with an average of 192.84 kWhac and November at 193.9 kWhac. [2]
Strong breeze: 28 mps W
Precip.: Chance of Rain
Humidity: 81%
Cloud cover: 100%
Tue Nov 5
51°F
Light Rain
Min: 46°F
Max: 52°F
High wind, near gale: 32 mps W
Precip.: Chance of Rain
Humidity: 71%
Cloud cover: 100%
More about 98638
About 98638
The ZIP code 98638 is associated with the city of Naselle in Pacific County in Washington.
98638 Solar Energy & Power
To learn more about solar energy and solar power in 98638, or for more solar-related resources for WA, check out the U.S. Energy Information Administration.
Did you know?
Solar cells convert sunlight into electricity through a physical process known as the photovoltaic effect.