Solar Energy & Solar Power Resources

Solar Energy in Johnston, SC

Solar Energy in Johnston

Sorry, historical solar radition values for Johnston are currently unavailable, please check back later.

Solar Panels in Johnston

Solar panels in Johnston that will produce the maximum solar energy output. [More]

Sunrise & Sunset in Johnston

The total length of the day in Johnston, SC today (September 12, 2026) will be 12 hours and 32 minutes. [More]

Solar Power in Johnston, SC

Solar Energy Data in Johnston, SC

See the chart below to see how different types of solar panel installations compare in Johnston.

Historical solar power output data for Johnston is not currently available.

Solar Energy Analysis for Johnston, SC

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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.

Sorry, data is not currently available.

Solar Radiation Analysis for Johnston, SC

Sorry, it is not possible to complete our solar radiation analysis for Johnston at this time.

Historical solar radiation data for Johnston is not currently available.

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Solar Power Comparison: Johnston vs. the U.S.

Solar Power Levels in Johnston

Sorry, solar radiation data for South Carolina is not currently available.

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]

Sorry, solar radiation data for South Carolina is not currently available.

Solar Data & Statistics for Johnston

Sunrise / Sunset in Johnston

Sunrise/Sunset for September 12, 2026 ^[2]
- Sunrise: 7:07 am
- Sunset: 7:39 pm
- Length of Day: 12:32

Best Months for Solar in Johnston

Monthly data not currently available.

Solar Panel Installs in Johnston

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]

AC output data is not currently available.

Solar Output Analysis for Johnston, SC

Sorry, it is not possible to complete our solar radiation analysis for Johnston at this time.

Historical solar radiation data for Johnston is not currently available.

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Cost of Utilities in Johnston

Johnston Electricity Costs

Sorry, Johnston residential electricity prices are currently unavailable.

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Solar Power Poll: Johnston

Vote now: Given all of the data and analysis provided for Johnston, is solar power a good choice for residents of this town?

Johnston Natural Gas Costs

Sorry, South Carolina residential natural gas prices are currently unavailable.

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Weather Forecast for Johnston, SC ^[5]

Sat Sep 12

76°F

Moderate Rain
Min: 71°F
Max: 85°F

Light breeze: 5 mps W
Precip.: Chance of Rain
Humidity: 86%
Cloud cover: 100%

Sun Sep 13

88°F

Few Clouds
Min: 70°F
Max: 95°F

Gentle Breeze: 9 mps WNW
Precip.: n/a
Humidity: 39%
Cloud cover: 16%

Mon Sep 14

95°F

Scattered Clouds
Min: 72°F
Max: 99°F

Light breeze: 7 mps N
Precip.: n/a
Humidity: 32%
Cloud cover: 33%

Tue Sep 15

83°F

Overcast Clouds
Min: 74°F
Max: 88°F

Gentle Breeze: 11 mps ENE
Precip.: n/a
Humidity: 53%
Cloud cover: 100%

Wed Sep 16

88°F

Sky Is Clear
Min: 68°F
Max: 89°F

Gentle Breeze: 8 mps E
Precip.: n/a
Humidity: 37%
Cloud cover: 4%

Thu Sep 17

89°F

Sky Is Clear
Min: 67°F
Max: 91°F

Gentle Breeze: 10 mps NE
Precip.: n/a
Humidity: 26%
Cloud cover: 1%

More about Johnston

About Johnston

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.