Based on historical Ottawa, IL data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Ottawa.[1]
Ottawa has an average monthly Global Horizontal Irradiance (GHI) of 3.92 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 1% greater than the average monthly Direct Normal Irradiance (DNI) of 3.87 kWh/m2/day. [1]
Solar installations in Ottawa that are always titled at the latitude of Ottawa (Average Tilt at Latitude or ATaL) average 4.54 kWh/m2/day, or about 16% greater than the average monthly GHI of 3.92 kWh/m2/day and approximately 17% greater than the average monthly DNI of 3.87 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 Ottawa
Solar Radiation Data in Ottawa, IL
See the chart below for monthly solar radiation levels in Ottawa.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Ottawa, IL
Ottawa, IL has a average annual solar radiation value of 4.87 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Ottawa is July with an average of 6.02 kWh/m2/day, followed by August at 5.94 kWh/m2/day and September at 5.88 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Ottawa (Illinois) are December with an average of 2.95 kWh/m2/day, followed by January with an average of 3.45 kWh/m2/day and November at 3.7 kWh/m2/day. [1]
Solar Power Comparison: Ottawa vs. the U.S.
Solar Power Levels in Ottawa
The average monthly solar radiation level in Ottawa, IL, of 4.87 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: Ottawa vs. the U.S.
Below is a month-by-month comparison of how average Ottawa 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 Ottawa, IL at this current time.
Solar Power Output in Ottawa
The Power of Solar in Ottawa, IL
Monthly AC solar system output averages for Ottawa (il). Month-by-month solar power, as ranked by AC output, in Ottawa. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Ottawa, IL
Ottawa (IL) has a average annual solar AC output value of 5565.06 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Ottawa is July with an average of 550.48 kWhac, followed by August at 544.6 kWhac and May at 543.28 kWhac. [2]
The three months that historically average the lowest average solar output levels in Ottawa (Illinois) are December with an average of 305.93 kWhac, followed by January with an average of 360.01 kWhac and November at 365.8 kWhac. [2]
Cost of Utilities in Ottawa
Ottawa Electricity Costs
Sorry, Ottawa residential electricity prices are currently unavailable.
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Solar Power Poll: Ottawa
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Ottawa Natural Gas Costs
Sorry, Illinois residential natural gas prices are currently unavailable.
The city of Ottawa, IL in LaSalle County has an approximate population of 18,768. [6]
Ottawa, IL Solar Energy
To learn more about solar energy and solar power Ottawa, IL, or for more solar-related resources for Ottawa, visit 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.