Based on historical Riddle, OR data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Riddle.[1]
Riddle has an average monthly Global Horizontal Irradiance (GHI) of 4.1 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 7% less than the average monthly Direct Normal Irradiance (DNI) of 4.4 kWh/m2/day. [1]
Solar installations in Riddle that are always titled at the latitude of Riddle (Average Tilt at Latitude or ATaL) average 4.66 kWh/m2/day, or about 14% greater than the average monthly GHI of 4.1 kWh/m2/day and approximately 6% greater than the average monthly DNI of 4.4 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 Riddle
Solar Radiation Data in Riddle, OR
See the chart below for monthly solar radiation levels in Riddle.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Riddle, OR
Riddle, OR has a average annual solar radiation value of 4.67 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Riddle is July with an average of 6.85 kWh/m2/day, followed by August at 6.82 kWh/m2/day and June at 6.29 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Riddle (Oregon) are December with an average of 2.07 kWh/m2/day, followed by November with an average of 2.56 kWh/m2/day and January at 2.75 kWh/m2/day. [1]
Solar Power Comparison: Riddle vs. the U.S.
Solar Power Levels in Riddle
The average monthly solar radiation level in Riddle, OR, of 4.67 kilowatt hours per square meter per day (kWh/m2/day) is approximately 19% 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: Riddle vs. the U.S.
Below is a month-by-month comparison of how average Riddle 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 Riddle, OR at this current time.
Solar Power Output in Riddle
The Power of Solar in Riddle, OR
Monthly AC solar system output averages for Riddle (or). Month-by-month solar power, as ranked by AC output, in Riddle. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Riddle, OR
Riddle (OR) has a average annual solar AC output value of 5135.22 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Riddle is July with an average of 606.5 kWhac, followed by August at 604.66 kWhac and June at 557.82 kWhac. [2]
The three months that historically average the lowest average solar output levels in Riddle (Oregon) are December with an average of 206.61 kWhac, followed by November with an average of 245.14 kWhac and January at 271.67 kWhac. [2]
Cost of Utilities in Riddle
Riddle Electricity Costs
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Solar Power Poll: Riddle
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Riddle Natural Gas Costs
Sorry, Oregon residential natural gas prices are currently unavailable.
The city of Riddle, OR in Douglas County has an approximate population of 1,185. [6]
Riddle, OR Solar Energy
To learn more about solar energy and solar power Riddle, OR, or for more solar-related resources for Riddle, visit the U.S. Energy Information Administration.
Did you know?
It takes light about 8 minutes, 19 seconds to travel the 93,000,000 miles from the sun's surface to us on Earth.