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Solar Installation in Charleston, SC

Compare 6 local solar installation pros. Typical service: $13543–$18680.

Top Solar Installation Companies in Charleston

  1. 1.U.S. Renewable Power

    5.0★ (82 reviews)

    5.0★ from 82 reviews

    +18434228425Website

  2. 2.U.S. Solar Contractors

    5.0★ (42 reviews)

    5.0★ from 42 reviews

    +18438347918Website

  3. 3.SCSP Solar

    4.6★ (48 reviews)

    4.6★ from 48 reviews

    +18432351035Website

  4. 4.Southern Current

    4.3★ (55 reviews)

    4.3★ from 55 reviews

    +18432772090Website

  5. 5.Primitive Success Group

    4.7★ (15 reviews)

    4.7★ from 15 reviews

    +18886884774Website

  6. 6.Holy City Solar Co

    +18438294306Website

Solar Installation Cost in Charleston

Local ranges, adjusted for area wage and cost-of-living data.

ServiceTypical range in Charleston
6 kW system, installed$13,543–$18,680/job
8 kW system, installed$18,026–$24,938/job
10 kW system, installed$22,509–$31,196/job

Solar Installation prices in Charleston run about 7% below the national average, based on what this trade earns in the metro area — so neighbouring cities in the same metro see similar rates.

Quotes on this page come from 6 companies serving Charleston, rated 4.7★ on average across 242 customer reviews.

Charleston Climate & Seasonal Timing

What Charleston's weather means for scheduling solar installation.

Last spring frost
February 6
First fall frost
December 23
Annual precipitation
44.42"
Heating degree days
1,736
Cooling degree days
2,375
MonthLowHighPrecip
Jan42.8°56.7°2.94"
Feb45.5°59.6°2.51"
Mar51.6°65°3.3"
Apr58.8°72°2.53"
May67.1°78.7°2.16"
Jun74°84.5°4.65"
Jul76.9°87.6°5.4"
Aug76.1°86.4°6.71"
Sep71.8°82°5.76"
Oct62.5°74.6°3.67"
Nov53.6°67.3°2.19"
Dec45.6°59.5°2.6"

NOAA station data 4.64 miles from Charleston.

Permits & Regulations in SC

Permit typically required

  • Residential electrical work over $500 requires a Residential Electrician license from the SC Residential Builders Commission
  • Commercial electrical work over $10,000 requires a Contractor's Licensing Board license with the electrical classification
  • Permits and inspections are issued by the county or city

License required: SC Residential Electrician license (work over $500)

Sources: www.llr.sc.gov

Solar Installation FAQs for Charleston

How much does solar cost in Charleston?

A 6 kW home solar system in Charleston typically runs $13543-$18680 installed, before any incentives.

How many solar installers serve Charleston?

We track 6 solar installation companies serving Charleston.

Is solar installation in Charleston more expensive than average?

Electrical installation labor in Charleston runs about -6.6% versus the national average.

Do I need a permit for solar panels in Charleston, SC?

In SC, Residential electrical work over $500 requires a Residential Electrician license from the SC Residential Builders Commission. Rooftop solar in Charleston needs a building and electrical permit plus a utility interconnection agreement.

Is there a federal solar tax credit in 2026?

No for homeowners buying a system: the residential federal credit ended December 31, 2025, so a Charleston quote of $13543-$18680 is close to the out-of-pocket cost unless a state or utility rebate applies.

How much does air conditioning drive solar savings in Charleston?

Charleston sees about 2,375 cooling degree days a year; the more air conditioning a home runs, the more of a solar systems output it uses directly.

How many quotes should I get for solar in Charleston?

At least three; with 6 installers serving Charleston, compare the price per watt, panel and inverter models, and the workmanship warranty.

Does heat reduce solar output in Charleston?

Slightly; panels lose efficiency on days near 88F, so Charleston quotes should use temperature-adjusted production estimates.