Based on historical Fairfax, IA data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Fairfax.[1]
Fairfax has an average monthly Global Horizontal Irradiance (GHI) of 3.91 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 2% less than the average monthly Direct Normal Irradiance (DNI) of 4 kWh/m2/day. [1]
Solar installations in Fairfax that are always titled at the latitude of Fairfax (Average Tilt at Latitude or ATaL) average 4.54 kWh/m2/day, or about 16% greater than the average monthly GHI of 3.91 kWh/m2/day and approximately 14% greater than the average monthly DNI of 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 Fairfax
Solar Radiation Data in Fairfax, IA
See the chart below for monthly solar radiation levels in Fairfax.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Fairfax, IA
Fairfax, IA has a average annual solar radiation value of 4.89 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Fairfax is July with an average of 6.19 kWh/m2/day, followed by September at 5.94 kWh/m2/day and August at 5.79 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Fairfax (Iowa) are December with an average of 2.92 kWh/m2/day, followed by January with an average of 3.38 kWh/m2/day and November at 3.79 kWh/m2/day. [1]
Solar Power Comparison: Fairfax vs. the U.S.
Solar Power Levels in Fairfax
The average monthly solar radiation level in Fairfax, IA, of 4.89 kilowatt hours per square meter per day (kWh/m2/day) is approximately 24% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 26% 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: Fairfax vs. the U.S.
Below is a month-by-month comparison of how average Fairfax 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 Fairfax, IA at this current time.
Solar Power Output in Fairfax
The Power of Solar in Fairfax, IA
Monthly AC solar system output averages for Fairfax (ia). Month-by-month solar power, as ranked by AC output, in Fairfax. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Fairfax, IA
Fairfax (IA) has a average annual solar AC output value of 5626.47 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Fairfax is July with an average of 572.13 kWhac, followed by May at 544.17 kWhac and August at 541.63 kWhac. [2]
The three months that historically average the lowest average solar output levels in Fairfax (Iowa) are December with an average of 309.75 kWhac, followed by January with an average of 358.74 kWhac and November at 372.35 kWhac. [2]
Cost of Utilities in Fairfax
Fairfax Electricity Costs
Sorry, Fairfax residential electricity prices are currently unavailable.
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Solar Power Poll: Fairfax
Vote now: Given all of the data and analysis provided for Fairfax, is solar power a good choice for residents of this city?
Fairfax Natural Gas Costs
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Gentle Breeze: 9 mps E
Precip.: Chance of Snow
Humidity: 78%
Cloud cover: 100%
Wed Dec 25
37°F
Light Rain
Min: 35°F
Max: 37°F
Light breeze: 7 mps NE
Precip.: Chance of Rain
Humidity: 94%
Cloud cover: 100%
Thu Dec 26
43°F
Light Rain
Min: 38°F
Max: 45°F
Gentle Breeze: 8 mps ENE
Precip.: Chance of Rain
Humidity: 92%
Cloud cover: 100%
More about Fairfax
About Fairfax
The city of Fairfax, IA in Linn County has an approximate population of 2,123. [6]
Fairfax, IA Solar Energy
To learn more about solar energy and solar power Fairfax, IA, or for more solar-related resources for Fairfax, visit the U.S. Energy Information Administration.
Did you know?
Various missions to space by different countries are known to utilize solar energy as a main power source.