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Dominion Energy South Carolina Rate 24 — EV fast-charging electricity cost

Dominion Energy SC Rate 24 is the filed rate schedule ForgeAsset models for DC fast-charging sites in Dominion Energy South Carolina territory in South Carolina. Energy prices at 4.4¢/kWh–10.6¢/kWh by time of day; the demand side bills $19.90/kW of monthly peak. For one reference Supercharger site held constant across the whole library, that works out to 49.4¢/kWh per dispensed kWh — rank 63 of 86 filed tariffs (1 = least expensive).

Modeled rates

Dominion Energy South Carolina's large-service time-of-use rate for the Columbia and Charleston metros: real three-window TOU energy against a demand charge billed on a 5–9 p.m. every-day window that coincides with a charging site's peak, folded at the summed rate. Figures carry the July-2026 rate-case order and fold the 6% electricity sales tax. Two fixed monthly charges totaling $3,600 — the largest fixed stack in the covered set — and the schedule's five-year minimum contract term are not modeled; winter morning hours bill at the on-peak energy rate the model prices lower, a small disclosed understatement.

The filed rate book for this territory records no EV-specific commercial rate, so the modeled cost is the standard schedule. Demand follows the model's conservative convention — 150 kW per stall billed every month, the worst-case coincident peak — so a site whose metered peak runs below that would see a lower demand line.

Source: Dominion Energy South Carolina filed rate schedule. Rates are digit-verified against the utility's own filed sheets and update within two weeks of any revision; derivations are on the methodology page.

What the reference site pays here

Reference site: 8 Tesla V4 stalls at 235 kWh/stall/day (57,183 kWh dispensed per month), a 150kW per-stall demand assumption, the model's default time-of-use mix, and a 12% loss gross-up — identical to the full utility ranking, where this tariff sits at position 63 of 86.

The rest of the South Carolina picture

The tariff is one layer. State taxes, incentives, clean-fuels programs, and the charging market shape the remainder — Tesla Supercharger ROI in South Carolina covers them, and the US Supercharger Economics Map shows every US Supercharger over utility territories colored by this same effective-cost derivation.

Dominion Energy South Carolina Rate 24 — questions

What does Dominion Energy South Carolina charge for energy on Rate 24?

The modeled rates are 4.4¢/kWh–10.6¢/kWh by time of day. At the model's default time-of-use mix (30% peak, 45% off-peak, 25% super-off-peak) that blends to 6.8¢/kWh.

Does Rate 24 carry a demand charge?

Yes: $19.90/kW of monthly peak. For a reference 8-stall site at 150 kW per stall that comes to about $23,875 per month.

What does electricity cost per kWh dispensed on this tariff?

For the reference site — 8 Tesla V4 stalls dispensing 235 kWh per stall per day, with a 12% loss gross-up — the all-in utility cost works out to 49.4¢/kWh per dispensed kWh, rank 63 of 86 tariffs in the library (1 = least expensive).

ForgeAsset is software, not investment, tax, or legal advice — outputs are model estimates from your inputs, not guarantees. Rates current as of research; verify current terms with the utility's filed schedule before committing capital.