EV charger installation in Charleston, SC

Local charging reality

Charging reality in Charleston

Charleston garages are frequently detached, sitting behind the house, and served by an electrical system sized for a very different era of household load. That combination, rather than the charger itself, is what sets the price here. On the peninsula the run from the panel to where the car actually parks is often the single largest line item on the quote, and it is the part most likely to be missing from a phone estimate.

Street-visible equipment brings the review question into play, which catches people out. Where a charger, its conduit or a new subpanel is visible from the public right of way in a historic district, that can need addressing before anything is mounted. We check the jurisdiction first, because a Charleston mailing address may sit inside the City, inside another municipality, or in unincorporated Charleston County, and the answer differs.

The economics point clearly toward charging during daylight if you also have solar. Dominion Energy South Carolina credits exported power at roughly 2.8 to 4.1 cents against a retail rate near 14.4 cents, so a kilowatt-hour that goes straight from your roof into your car is worth several times one you export and buy back at night. Where the car is out during the day, that argument weakens, and we will say so rather than sell around it.

Written for Charleston specifically. Your own roof, bill and meter still decide the answer, which is what the free assessment settles.

Why the pairing matters more now

An EV is the best load-shifting tool a solar home has

When Dominion Energy South Carolina moved new solar customers onto Solar Choice at the start of 2026, the value of exporting surplus power fell sharply. Exports now credit at roughly 2.8–4.1¢ per kWh while you buy power at about 14.4¢ per kWh. The whole game became using your own production rather than sending it away.

An electric car is the largest flexible load most households have. A typical EV draws far more than a refrigerator or a television, and you can choose when it draws. Shifting that charging into daylight hours soaks up surplus production that would otherwise export for a few cents.

For a household where someone works from home, or a car that sits on the drive during the day, this is the single most effective change available, and it costs nothing beyond setting a schedule. For a car that is out all day, a battery does the same job with hardware instead.

We are not going to put a savings figure on that, because it depends on your driving pattern, your system size and your rate. But the direction is not in doubt, and it is worth setting up deliberately rather than by accident.

The Charleston rate detail · storage as the alternative · how self-consumption drives payback