ForgeAsset / Utilities / Duke Energy Carolinas (South Carolina)

Duke Energy Carolinas (South Carolina) LGS — EV fast-charging electricity cost

Duke Energy Carolinas SC LGS is the filed rate schedule ForgeAsset models for DC fast-charging sites in Duke Energy Carolinas territory in South Carolina. Energy prices at 9.0¢/kWh flat; the demand side bills $5.14/kW of monthly peak. For one reference Supercharger site held constant across the whole library, that works out to 20.9¢/kWh per dispensed kWh — rank 13 of 86 filed tariffs (1 = least expensive).

Modeled rates

Duke Energy Carolinas' South Carolina large-service schedule for the Greenville–Spartanburg upstate: the cheap-demand/expensive-energy side of the Duke pair, the same split the North Carolina books file. Figures fold the June-2026 rider summary and South Carolina's 6% electricity sales tax; the ratchet clause resolves to the current month for a site with a steady billed peak. A fixed monthly customer charge and two small filed adders are not modeled. The pending Duke Carolinas–Progress merger would eventually consolidate the two books.

Source: Duke Energy Carolinas (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 13 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.

Duke Energy Carolinas (South Carolina) LGS — questions

What does Duke Energy Carolinas (South Carolina) charge for energy on LGS?

The modeled rates are 9.0¢/kWh flat. At the model's default time-of-use mix (30% peak, 45% off-peak, 25% super-off-peak) that blends to 9.0¢/kWh.

Does LGS carry a demand charge?

Yes: $5.14/kW of monthly peak. For a reference 8-stall site at 150 kW per stall that comes to about $6,169 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 20.9¢/kWh per dispensed kWh, rank 13 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.