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Generator Installation · South Carolina
A generator must connect through a transfer switch or an approved interlock so it can never feed power back into utility lines. Electricians install standby generators, portable generator inlets with interlocks, and the transfer equipment for both.
Hurricane season on the coast and fast inland growth drive generator, surge and EV work.
Across the Southeast, homes deal with heat, humidity, frequent thunderstorms and hurricane season near the coast. Permit offices, utilities and housing stock differ by city, which affects how generator installation is planned and scheduled. These local guides cover the South Carolina cities where we have written specific notes.
Hurricane season makes backup power a priority in Charleston. A standby generator with an automatic transfer switch should be mounted above expected flood levels, especially in low-lying neighborhoods, and rated for salt air near the water.
Utility: Dominion Energy South Carolina (some outlying areas: Berkeley Electric Cooperative)
When Hurricane Helene's winds reached Greenville in September 2024, falling trees left much of the county without power for days, and generator requests rose sharply. A generator inlet with an interlock lets a portable unit run the refrigerator, well pump if there is one, lights and some cooling safely.
Utility: Duke Energy
1. Size the load
Circuits that must stay powered are listed and the generator sized.
2. Choose the connection
Inlet and interlock, manual transfer switch or automatic transfer switch.
3. Install and inspect
Permitted installation, gas connection by a licensed fitter where needed, and inspection.
Electricians set their own prices; local permit fees and utility requirements add to these factors.
Permits come from the city or county where the home is. For example: Charleston: Electrical permits inside city limits come from the City of Charleston's building inspections division; other municipalities and unincorporated Charleston County have their own. Greenville: Electrical permits inside city limits come from the City of Greenville's Planning and Development office; unincorporated areas are permitted by Greenville County.
Charleston: Dominion Energy South Carolina (some outlying areas: Berkeley Electric Cooperative). Greenville: Duke Energy.
Listed interlock kits are accepted in many jurisdictions when installed with a permit. Your electrician will know the local rule.
Call now, or send a request and a licensed electrician who serves your ZIP code will contact you.
