Based on historical Sumas, WA data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Sumas.[1]
Sumas has an average monthly Global Horizontal Irradiance (GHI) of 3.2 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 5% greater than the average monthly Direct Normal Irradiance (DNI) of 3.05 kWh/m2/day. [1]
Solar installations in Sumas that are always titled at the latitude of Sumas (Average Tilt at Latitude or ATaL) average 3.71 kWh/m2/day, or about 16% greater than the average monthly GHI of 3.2 kWh/m2/day and approximately 22% greater than the average monthly DNI of 3.05 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 Sumas
Solar Radiation Data in Sumas, WA
See the chart below for monthly solar radiation levels in Sumas.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Sumas, WA
Sumas, WA has a average annual solar radiation value of 3.79 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Sumas is July with an average of 6.1 kWh/m2/day, followed by August at 5.61 kWh/m2/day and June at 5.12 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Sumas (Washington) are December with an average of 1.56 kWh/m2/day, followed by January with an average of 1.68 kWh/m2/day and November at 1.91 kWh/m2/day. [1]
Solar Power Comparison: Sumas vs. the U.S.
Solar Power Levels in Sumas
The average monthly solar radiation level in Sumas, WA, of 3.79 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).
Solar Power: Sumas vs. the U.S.
Below is a month-by-month comparison of how average Sumas 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 Sumas, WA at this current time.
Solar Power Output in Sumas
The Power of Solar in Sumas, WA
Monthly AC solar system output averages for Sumas (wa). Month-by-month solar power, as ranked by AC output, in Sumas. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Sumas, WA
Sumas (WA) has a average annual solar AC output value of 4249.94 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Sumas is July with an average of 558.08 kWhac, followed by August at 512.71 kWhac and May at 471.54 kWhac. [2]
The three months that historically average the lowest average solar output levels in Sumas (Washington) are December with an average of 157.82 kWhac, followed by January with an average of 170.02 kWhac and November at 185.7 kWhac. [2]
Cost of Utilities in Sumas
Sumas Electricity Costs
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Solar Power Poll: Sumas
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Sumas Natural Gas Costs
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More about Sumas
About Sumas
The city of Sumas, WA in Whatcom County has an approximate population of 1,307. [6]
Sumas, WA Solar Energy
To learn more about solar energy and solar power Sumas, WA, or for more solar-related resources for Sumas, visit the U.S. Energy Information Administration.
Did you know?
Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.