Based on historical Walla Walla, WA data, solar panels that always track the sun throughout the day will produce the maximum solar energy output in Walla Walla.[1]
Walla Walla has an average monthly Global Horizontal Irradiance (GHI) of 4.12 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 15% less than the average monthly Direct Normal Irradiance (DNI) of 4.84 kWh/m2/day. [1]
Solar installations in Walla Walla that are always titled at the latitude of Walla Walla (Average Tilt at Latitude or ATaL) average 4.83 kWh/m2/day, or about 17% greater than the average monthly GHI of 4.12 kWh/m2/day and approximately 0% 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 Walla Walla
Solar Radiation Data in Walla Walla, WA
See the chart below for monthly solar radiation levels in Walla Walla.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Walla Walla, WA
Walla Walla, WA has a average annual solar radiation value of 4.75 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Walla Walla is July with an average of 7.27 kWh/m2/day, followed by August at 7.14 kWh/m2/day and June at 6.7 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Walla Walla (Washington) are December with an average of 1.67 kWh/m2/day, followed by January with an average of 1.72 kWh/m2/day and November at 2.42 kWh/m2/day. [1]
Solar Power Comparison: Walla Walla vs. the U.S.
Solar Power Levels in Walla Walla
The average monthly solar radiation level in Walla Walla, WA, of 4.75 kilowatt hours per square meter per day (kWh/m2/day) is approximately 21% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 28% 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: Walla Walla vs. the U.S.
Below is a month-by-month comparison of how average Walla Walla 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 Walla Walla, WA at this current time.
Solar Power Output in Walla Walla
The Power of Solar in Walla Walla, WA
Monthly AC solar system output averages for Walla Walla (wa). Month-by-month solar power, as ranked by AC output, in Walla Walla. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Walla Walla, WA
Walla Walla (WA) has a average annual solar AC output value of 5290.23 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Walla Walla is July with an average of 650.83 kWhac, followed by August at 645.81 kWhac and June at 597.11 kWhac. [2]
The three months that historically average the lowest average solar output levels in Walla Walla (Washington) are December with an average of 170.3 kWhac, followed by January with an average of 176.51 kWhac and November at 234.29 kWhac. [2]
Cost of Utilities in Walla Walla
Walla Walla Electricity Costs
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Solar Power Poll: Walla Walla
Vote now: Given all of the data and analysis provided for Walla Walla, is solar power a good choice for residents of this city?
Walla Walla Natural Gas Costs
Sorry, Washington residential natural gas prices are currently unavailable.
The city of Walla Walla, WA in Walla Walla County has an approximate population of 31,731. [6]
Walla Walla, WA Solar Energy
To learn more about solar energy and solar power Walla Walla, WA, or for more solar-related resources for Walla Walla, visit the U.S. Energy Information Administration.
Did you know?
Solar power is renewable, does not produce any pollutants and is one of the cleanest source of energy.