ForgeAsset / Utilities / Duke Energy Florida

Duke Energy Florida GSD-1 — EV fast-charging electricity cost

Duke Energy FL GSD-1 is the filed rate schedule ForgeAsset models for DC fast-charging sites in Duke Energy Florida territory in Florida. Energy prices at 8.2¢/kWh flat; the demand side bills $12.88/kW of monthly peak. For one reference Supercharger site held constant across the whole library, that works out to 36.2¢/kWh per dispensed kWh — rank 44 of 86 filed tariffs (1 = least expensive).

Modeled rates

Duke Energy Florida's standard demand schedule for commercial accounts — the St. Petersburg, Clearwater, and Orlando-suburb corridor; the Duke FL tariff book files no commercial EV-specific rate. The schedule is flat (non-time-differentiated) — the three TOU rates carry the same bundled value — and demand is billed per kW of the month's 30-minute peak with no ratchet clause. Rates fold in Duke's clause charges (fuel, conservation, capacity, environmental, nuclear asset securitization, storm protection) plus Florida's 6.95% electricity sales tax computed on the itemized gross-receipts line; Florida tax defaults apply on address resolve. Base rates step each January through 2027 under a multi-year settlement, and the optional time-of-use variant (GSDT-1) bills window-based demand the model does not express. A fixed monthly customer charge is not modeled.

Source: Duke Energy Florida 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 44 of 86.

The rest of the Florida picture

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

Duke Energy Florida GSD-1 — questions

What does Duke Energy Florida charge for energy on GSD-1?

The modeled rates are 8.2¢/kWh flat. At the model's default time-of-use mix (30% peak, 45% off-peak, 25% super-off-peak) that blends to 8.2¢/kWh.

Does GSD-1 carry a demand charge?

Yes: $12.88/kW of monthly peak. For a reference 8-stall site at 150 kW per stall that comes to about $15,454 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 36.2¢/kWh per dispensed kWh, rank 44 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.