Based on historical Johnston, SC 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.[1]
Johnston has an average monthly Global Horizontal Irradiance (GHI) of 4.61 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 1% less than the average monthly Direct Normal Irradiance (DNI) of 4.64 kWh/m2/day. [1]
Solar installations in Johnston that are always titled at the latitude of Johnston (Average Tilt at Latitude or ATaL) average 5.24 kWh/m2/day, or about 14% greater than the average monthly GHI of 4.61 kWh/m2/day and approximately 13% greater than the average monthly DNI of 4.64 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
Solar Radiation Data in Johnston, SC
See the chart below for monthly solar radiation levels in Johnston.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Johnston, SC
Johnston, SC has a average annual solar radiation value of 5.36 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Johnston is April with an average of 6 kWh/m2/day, followed by May at 5.81 kWh/m2/day and June at 5.78 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Johnston (South Carolina) are December with an average of 4.16 kWh/m2/day, followed by January with an average of 4.65 kWh/m2/day and February at 4.88 kWh/m2/day. [1]
Solar Power Comparison: Johnston vs. the U.S.
Solar Power Levels in Johnston
The average monthly solar radiation level in Johnston, SC, of 5.36 kilowatt hours per square meter per day (kWh/m2/day) is approximately 36% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 19% 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 vs. the U.S.
Below is a month-by-month comparison of how average Johnston 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 town of Johnston, SC at this current time.
Solar Power Output in Johnston
The Power of Solar in Johnston, SC
Monthly AC solar system output averages for Johnston (sc). Month-by-month solar power, as ranked by AC output, in Johnston. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Johnston, SC
Johnston (SC) has a average annual solar AC output value of 5769.2 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Johnston is April with an average of 524.31 kWhac, followed by October at 524.12 kWhac and May at 524.05 kWhac. [2]
The three months that historically average the lowest average solar output levels in Johnston (South Carolina) are December with an average of 394.38 kWhac, followed by February with an average of 418.18 kWhac and January at 441.31 kWhac. [2]
Cost of Utilities in Johnston
Johnston Electricity Costs
Sorry, Johnston residential electricity prices are currently unavailable.
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Solar Power Poll: Johnston
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Johnston Natural Gas Costs
Sorry, South Carolina residential natural gas prices are currently unavailable.
The town of Johnston, SC in Edgefield County has an approximate population of 2,362. [6]
Johnston, SC Solar Energy
To learn more about solar energy and solar power Johnston, SC, or for more solar-related resources for Johnston, 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.