Based on historical 97470 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 97470.[1]
The region associated with 97470 has an average monthly Global Horizontal Irradiance (GHI) of 4.04 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 7% less than the average monthly Direct Normal Irradiance (DNI) of 4.33 kWh/m2/day. [1]
Solar installations in 97470 that are always titled at the latitude of Roseburg (Average Tilt at Latitude or ATaL) average 4.58 kWh/m2/day, or about 13% greater than the average monthly GHI of 4.04 kWh/m2/day and approximately 6% greater than the average monthly DNI of 4.33 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 97470
Solar Radiation Data in 97470
See the chart below for monthly solar radiation levels in 97470.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for 97470
The region associated with 97470 has a average annual solar radiation value of 4.48 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 97470 is August with an average of 6.73 kWh/m2/day, followed by July at 6.7 kWh/m2/day and September at 5.99 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 97470 are December with an average of 1.94 kWh/m2/day, followed by November with an average of 2.29 kWh/m2/day and January at 2.38 kWh/m2/day. [1]
Solar Power Comparison: 97470 vs. the U.S.
Solar Power Levels in 97470
The average monthly solar radiation level in 97470, of 4.48 kilowatt hours per square meter per day (kWh/m2/day) is approximately 14% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 32% 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: 97470 vs. the U.S.
Below is a month-by-month comparison of how average 97470 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 97470 at the current time.
Solar Power Output in 97470
The Power of Solar in 97470
Monthly AC solar system output averages for 97470. Month-by-month solar power, as ranked by AC output, in 97470. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for 97470
97470 has a average annual solar AC output value of 4927.05 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 97470 is August with an average of 600.77 kWhac, followed by July at 599.95 kWhac and June at 533.08 kWhac. [2]
The three months that historically average the lowest average solar output levels in 97470 are December with an average of 194.29 kWhac, followed by November with an average of 218.88 kWhac and January at 236.7 kWhac. [2]
The ZIP code 97470 is associated with the city of Roseburg in Douglas County in Oregon.
97470 Solar Energy & Power
To learn more about solar energy and solar power in 97470, or for more solar-related resources for OR, check out 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.