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Solar Energy in Riddle, OR

Solar Energy in Riddle

The month of July has the highest historical solar radition values in Riddle with an average of 6.21 kWh/m2/day. [More]

Solar Panels in Riddle

Solar panels in Riddle that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in Riddle

The total length of the day in Riddle, OR today (January 15, 2019) will be 09 hours and 23 minutes. [More]

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Riddle, OR Solar Energy

Solar Power in Riddle, OR

Solar Energy Data in Riddle, OR

See the chart below to see how different types of solar panel installations compare in Riddle.

* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.


Solar Energy Analysis for Riddle, OR

Solar Radiation Data in Riddle

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]

* See glossary & definitions below.

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

Solar Radiation Data in Riddle

Riddle, OR has a average annual solar radiation value of 4.44 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 6.21 kWh/m2/day, followed by June at 5.81 kWh/m2/day and August at 5.78 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 2.28 kWh/m2/day, followed by January with an average of 2.62 kWh/m2/day and November at 2.94 kWh/m2/day. [1]

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Solar Power Comparison: Riddle vs. the U.S.

Solar Power Levels in Riddle

The average monthly solar radiation level in Riddle, OR, of 4.44 kilowatt hours per square meter per day (kWh/m2/day) is approximately 19% greater than the average level of 3.73 kWh/m2/day in a city with historically low levels (WA) and is approximately 33% less than the average level of 6.6 kWh/m2/day in a city with historically high levels (NV). [1]


→ Values listed as 0 (zero) are not available (N/A).

Solar Power: 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).

Solar Data & Statistics for Riddle

Sunrise / Sunset in Riddle

  • Sunrise/Sunset for January 15, 2019 [2]
    • Sunrise: 8:41 am
    • Sunset: 6:04 pm
    • Solar Noon: 1:23 pm
    • Length of Day: 09:23
Solar Energy Statistics for Riddle

Best Months for Solar in Riddle

  • Top Solar Power Months Historically [1]
    • Solar Radiation July (6.21 kWh/m2/day)
    • ATaL: July (6.8 kWh/m2/day)
    • DNI: July (8.02 kWh/m2/day)
    • GHI: July (7.32 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Riddle

We do not currently have data on solar panel installations in the city of Riddle, OR at this current time.

However, Riddle is in Douglas County and Douglas County has at least 36 solar insallations right now. [1]

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

Solar Radiation Data in Riddle

Riddle (OR) has a average annual solar AC output value of 5249.25 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Riddle is July with an average of 614.2 kWhac, followed by August at 571.51 kWhac and May at 562.36 kWhac. [2]

The three months that historically average the lowest average solar output levels in Riddle (Oregon) are December with an average of 233.91 kWhac, followed by January with an average of 268.6 kWhac and February at 284.91 kWhac. [2]

Cost of Utilities in Riddle

Riddle Electricity Costs

Electricity prices (residential) in Riddle averaged 11.24 cents per kilowatthour (¢/kWh) in October 2018, which was about 13% less than the overall U.S. average residential electricity rate of 12.87¢/kWh in October. [3]

Solar Power Poll: Riddle

Vote now: Given all of the data and analysis provided for Riddle, is solar power a good choice for residents of this city?

Yes, solar power is a great option  
No, solar power isn't a good option

Riddle Natural Gas Costs

Natural gas prices (residential) in Oregon averaged $11.33 per thousand cubic feet (Mcf) in October 2018, which was approximately 8% less than the overall U.S. average residential natural gas rate of $12.26 per Mcf in October. [4]

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Solar Businesses in Riddle

Solar Energy Contractors in Riddle

Contractors & builders that specialize in solar panel installations in or near Riddle, OR.

Sorry, no local solar energy contractors found.

Our search for solar contractors companies located in Riddle produced no matches.

Solar Energy Equipment in Riddle

Businesses that sell solar energy equipment and/or solar parts in or near Riddle, OR.

Sorry, no local business selling solar equipment were found.

Our search for companies selling solar parts located in Riddle produced no matches.

Energy Conservation Consultants in Riddle

Energy conservation specialists that offer consulting services in or near Riddle, OR.

Sorry, no local energy conservation specialists were found.

Our search for energy conservation specialists located in Riddle produced no matches.

Weather Forecast for Riddle, OR [5]

Tue Jan 15
44°F
Light Rain
Min: 44°F
Max: 46°F
Moderate breeze: 5 mps SE
Precip.: Chance of Rain
Humidity: 72%
Cloud cover: 76%
Wed Jan 16
48°F
Moderate Rain
Min: 45°F
Max: 49°F
Moderate breeze: 7 mps SE
Precip.: Chance of Rain
Humidity: 82%
Cloud cover: 92%
Thu Jan 17
46°F
Heavy Intensity Rain
Min: 43°F
Max: 47°F
Fresh Breeze: 9 mps SSW
Precip.: Chance of Rain
Humidity: 92%
Cloud cover: 92%
Fri Jan 18
51°F
Heavy Intensity Rain
Min: 44°F
Max: 55°F
Fresh Breeze: 9 mps SSW
Precip.: Chance of Rain
Humidity: 0%
Cloud cover: 100%
Sat Jan 19
47°F
Moderate Rain
Min: 47°F
Max: 51°F
Light breeze: 3 mps NW
Precip.: Chance of Rain
Humidity: 0%
Cloud cover: 70%
Sun Jan 20
41°F
Moderate Rain
Min: 37°F
Max: 43°F
Light breeze: 2 mps W
Precip.: Chance of Rain
Humidity: 0%
Cloud cover: 44%

More about Riddle

About Riddle

The city of Riddle, OR in Douglas County has an approximate population of 1,185. [6]

Riddle Solar Power

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?

The solar energy that strikes the Earth in one hour could provide all of the Earth's energy needs for a complete year.

Other Cities in Oregon

ZIP Codes in OR


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References