Based on historical Pullman, WA data, solar panels that always track the sun throughout the day will produce the maximum solar energy output in Pullman.[1]
Pullman has an average monthly Global Horizontal Irradiance (GHI) of 4.02 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 17% less than the average monthly Direct Normal Irradiance (DNI) of 4.84 kWh/m2/day. [1]
Solar installations in Pullman that are always titled at the latitude of Pullman (Average Tilt at Latitude or ATaL) average 4.78 kWh/m2/day, or about 19% greater than the average monthly GHI of 4.02 kWh/m2/day and approximately 1% less than the average monthly DNI of 4.84 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 Pullman
Solar Radiation Data in Pullman, WA
See the chart below for monthly solar radiation levels in Pullman.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Pullman, WA
Pullman, WA has a average annual solar radiation value of 4.72 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Pullman is July with an average of 7.24 kWh/m2/day, followed by August at 6.98 kWh/m2/day and June at 6.35 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Pullman (Washington) are December with an average of 1.93 kWh/m2/day, followed by January with an average of 2.04 kWh/m2/day and November at 2.44 kWh/m2/day. [1]
Solar Power Comparison: Pullman vs. the U.S.
Solar Power Levels in Pullman
The average monthly solar radiation level in Pullman, WA, of 4.72 kilowatt hours per square meter per day (kWh/m2/day) is approximately 20% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 29% 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: Pullman vs. the U.S.
Below is a month-by-month comparison of how average Pullman 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 currently have data on solar panel installations in the city of Pullman, WA at this current time.
Solar Power Output in Pullman
The Power of Solar in Pullman, WA
Monthly AC solar system output averages for Pullman (wa). Month-by-month solar power, as ranked by AC output, in Pullman. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Pullman, WA
Pullman (WA) has a average annual solar AC output value of 5335.04 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Pullman is July with an average of 666.64 kWhac, followed by August at 631.15 kWhac and May at 582.36 kWhac. [2]
The three months that historically average the lowest average solar output levels in Pullman (Washington) are December with an average of 196.94 kWhac, followed by January with an average of 211.01 kWhac and November at 242.26 kWhac. [2]
Cost of Utilities in Pullman
Pullman Electricity Costs
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Solar Power Poll: Pullman
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Pullman Natural Gas Costs
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More about Pullman
About Pullman
The city of Pullman, WA in Whitman County has an approximate population of 29,799. [6]
Pullman, WA Solar Energy
To learn more about solar energy and solar power Pullman, WA, or for more solar-related resources for Pullman, visit the U.S. Energy Information Administration.
Did you know?
Various missions to space by different countries are known to utilize solar energy as a main power source.