The month of August has the highest historical solar radition values in Johnston City with an average of 6.1 kWh/m2/day. [More]
Solar Panels in Johnston City
Solar panels in Johnston City that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]
Sunrise & Sunset in Johnston City
The total length of the day in Johnston City, IL today (December 21, 2024) will be 9 hours and 35 minutes. [More]
Solar Power in Johnston City, IL
Solar Energy Data in Johnston City, IL
See the chart below to see how different types of solar panel installations compare in Johnston City.
Based on historical Johnston City, 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 Johnston City.[1]
Johnston City has an average monthly Global Horizontal Irradiance (GHI) of 4.23 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 0% less than the average monthly Direct Normal Irradiance (DNI) of 4.24 kWh/m2/day. [1]
Solar installations in Johnston City that are always titled at the latitude of Johnston City (Average Tilt at Latitude or ATaL) average 4.83 kWh/m2/day, or about 14% greater than the average monthly GHI of 4.23 kWh/m2/day and approximately 14% greater than the average monthly DNI of 4.24 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 Johnston City
Solar Radiation Data in Johnston City, IL
See the chart below for monthly solar radiation levels in Johnston City.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Johnston City, IL
Johnston City, IL has a average annual solar radiation value of 5.06 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Johnston City is August with an average of 6.1 kWh/m2/day, followed by June at 6.01 kWh/m2/day and September at 5.99 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Johnston City (Illinois) are December with an average of 3.29 kWh/m2/day, followed by January with an average of 3.77 kWh/m2/day and November at 4.09 kWh/m2/day. [1]
Solar Power Comparison: Johnston City vs. the U.S.
Solar Power Levels in Johnston City
The average monthly solar radiation level in Johnston City, IL, of 5.06 kilowatt hours per square meter per day (kWh/m2/day) is approximately 29% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 23% 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: Johnston City vs. the U.S.
Below is a month-by-month comparison of how average Johnston City 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 Johnston City, IL at this current time.
Solar Power Output in Johnston City
The Power of Solar in Johnston City, IL
Monthly AC solar system output averages for Johnston City (il). Month-by-month solar power, as ranked by AC output, in Johnston City. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Johnston City, IL
Johnston City (IL) has a average annual solar AC output value of 5735.9 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Johnston City is August with an average of 556.37 kWhac, followed by June at 541.76 kWhac and July at 537.72 kWhac. [2]
The three months that historically average the lowest average solar output levels in Johnston City (Illinois) are December with an average of 344.85 kWhac, followed by January with an average of 386.05 kWhac and November at 399.68 kWhac. [2]
Cost of Utilities in Johnston City
Johnston City Electricity Costs
Sorry, Johnston City residential electricity prices are currently unavailable.
Please check back later.
Solar Power Poll: Johnston City
Vote now: Given all of the data and analysis provided for Johnston City, is solar power a good choice for residents of this city?
Johnston City Natural Gas Costs
Sorry, Illinois residential natural gas prices are currently unavailable.
The city of Johnston City, IL in Williamson County has an approximate population of 3,543. [6]
Johnston City, IL Solar Energy
To learn more about solar energy and solar power Johnston City, IL, or for more solar-related resources for Johnston City, 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.
