Based on historical Gray, 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 Gray.[1]
Gray has an average monthly Global Horizontal Irradiance (GHI) of 4.05 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 8% less than the average monthly Direct Normal Irradiance (DNI) of 4.38 kWh/m2/day. [1]
Solar installations in Gray that are always titled at the latitude of Gray (Average Tilt at Latitude or ATaL) average 4.75 kWh/m2/day, or about 17% greater than the average monthly GHI of 4.05 kWh/m2/day and approximately 8% greater than the average monthly DNI of 4.38 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 Gray
Solar Radiation Data in Gray, IA
See the chart below for monthly solar radiation levels in Gray.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Gray, IA
Gray, IA has a average annual solar radiation value of 5.02 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Gray is July with an average of 6.13 kWh/m2/day, followed by June at 6.07 kWh/m2/day and August at 6.03 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Gray (Iowa) are December with an average of 3.3 kWh/m2/day, followed by January with an average of 3.48 kWh/m2/day and February at 4.02 kWh/m2/day. [1]
Solar Power Comparison: Gray vs. the U.S.
Solar Power Levels in Gray
The average monthly solar radiation level in Gray, IA, of 5.02 kilowatt hours per square meter per day (kWh/m2/day) is approximately 28% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 24% 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: Gray vs. the U.S.
Below is a month-by-month comparison of how average Gray 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 Gray, IA at this current time.
Solar Power Output in Gray
The Power of Solar in Gray, IA
Monthly AC solar system output averages for Gray (ia). Month-by-month solar power, as ranked by AC output, in Gray. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Gray, IA
Gray (IA) has a average annual solar AC output value of 5786.35 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Gray is July with an average of 570.15 kWhac, followed by August at 555.21 kWhac and June at 550.19 kWhac. [2]
The three months that historically average the lowest average solar output levels in Gray (Iowa) are December with an average of 353.18 kWhac, followed by January with an average of 365.71 kWhac and February at 375.57 kWhac. [2]
Cost of Utilities in Gray
Gray Electricity Costs
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Solar Power Poll: Gray
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Gray Natural Gas Costs
Sorry, Iowa residential natural gas prices are currently unavailable.
Gentle Breeze: 8 mps ESE
Precip.: Chance of Rain
Humidity: 79%
Cloud cover: 100%
More about Gray
About Gray
The city of Gray, IA in Audubon County has an approximate population of 63. [6]
Gray, IA Solar Energy
To learn more about solar energy and solar power Gray, IA, or for more solar-related resources for Gray, visit the U.S. Energy Information Administration.
Did you know?
About half of the sun's energy is absorbed by the Earth's surface; about 30 percent is reflected back from the surface.