ForgeAsset / Supercharger ROI / Florida
Tesla Supercharger ROI in Florida
Florida is the country's second-largest EV market, and its charging economics are shaped by a bill where the demand charge — not energy — dominates, layered with a storm-hardening cost-recovery rider that moves every year. ForgeAsset models Florida Power & Light's GSLD-1EV schedule — the parent GSLD-1 rates with the filed EV demand cap — and Duke Energy Florida's GSD-1 demand schedule for the St. Petersburg, Clearwater, and Orlando-suburb corridor, each against Florida's tax stack, with the electricity gross-receipts and sales taxes folded into the rates.
What makes Florida economics distinct
A demand-dominated bill
At FPL, the per-kW demand charge dominates a fast-charging bill rather than the energy rate — the modeled FPL demand charge is among the highest in the library, so utilization is the single biggest driver of Florida economics, and the bundled energy rate is comparatively low. Duke Energy Florida's GSD-1 bills demand at a materially lower per-kW rate with a higher bundled energy rate, so the same site models differently across the two territories. The figures are shown in the rate table below.
Storm-hardening cost recovery that moves each year
Florida commercial demand bills carry a Storm Protection Plan cost-recovery rider that funds grid hardening and is reviewed annually by the Public Service Commission. It has swung by large amounts filing to filing — a $1.2 billion storm-restoration charge approved in late 2024 came in below projection and triggered a roughly $80 million refund by mid-2026. It is a live cost layer tied to hurricane-season outcomes, folded into the demand side of the rate.
A regulator-built demand-charge relief rider
FPL filed EV-specific schedules (GSD-1EV and GSLD-1EV) designed so low-utilization fast-charging stations are not overwhelmed by peak-demand billing — capping billed demand as a function of energy dispensed. The model applies that cap: billed demand is the lower of the metered peak and the month's purchased energy divided by 75 hours, the divisor FPL files. At default utilization the cap binds and the demand line lands well below the uncapped schedule; as utilization rises the cap stops binding and billing matches the parent schedule.
A large market with no state income tax
Florida has no state personal income tax, and its EV market crossed into incentive-free growth in late 2025 while remaining second nationally in registered EVs. Interstate corridors (I-95, I-75, the Turnpike) double as hurricane evacuation routes, where the state has deployed temporary mobile charging.
Utilities and tariffs modeled in Florida
| Utility & tariff | Energy | Demand |
|---|---|---|
| FPL GSLD-1EV | 6.2¢/kWh flat | $19.38/kW of monthly peak, capped at kWh ÷ 75 h |
| Duke Energy FL GSD-1 | 8.2¢/kWh flat | $12.88/kW of monthly peak |
| Ocala Electric GSD-2 | 10.3¢/kWh flat | $10.72/kW of monthly peak |
Rates are digit-verified against each utility's own filed sheets and update within two weeks of any revision. Full derivations are on the methodology page.
See Florida in the US Supercharger Economics Map — every US Supercharger over utility territories colored by the derived effective electricity cost per dispensed kWh.
Florida tax profile
- Sales tax on hardware: 6%
- Business personal property tax: 1.69% of equipment value (example rate)
- Clean-fuels credit: no program
- Per-kWh charging excise: none
Florida tax defaults applied: no clean-fuels credit program exists in Florida (the LCFS revenue line is $0), LLC costs use the $138.75/yr annual report, sales tax uses the 6% state rate (county surtaxes apply only to the first $5,000 per item), and the property-tax default uses the unincorporated Miami-Dade example — county millage varies and both fields are editable in later steps. Florida's 6.95% electricity sales tax and 2.6% gross-receipts tax are already included in the FPL tariff rate. Florida legislative sessions have repeatedly proposed a per-kWh public-charging tax; none is law as of 2026-07.
Florida programs and incentives
FPL EVolution make-ready credit
A utility-side make-ready credit (transformers, switchgear, trenching, conduit) for qualifying Level 2 installs, first-come first-served until the budget is exhausted. DC fast-charging make-ready runs through FPL's rate-case-negotiated program.
FPL GSD-1EV / GSLD-1EV rider (modeled)
EV-specific schedules that cap billed demand for low-utilization public charging as a function of energy dispensed. Florida scenarios run on GSLD-1EV, which carries the parent schedule's rates with the filed 75-hour cap applied to billed demand.
NEVI (federal, FDOT-administered)
Roughly $198 million over five years for alternative-fuel corridor build-out; each funded station carries at least four 150 kW connectors.
Florida charging market
Florida carries roughly 247 Supercharger stations — the second-largest state footprint — along I-95, I-75, and the Florida Turnpike, corridors that also serve hurricane evacuation. FPL serves most of the Atlantic coast and the southern peninsula, and Duke Energy Florida covers St. Petersburg, Clearwater, and the Orlando suburbs — both modeled in the rate table above; Tampa proper (Tampa Electric) is stated as an uncovered banner. The state's economics are distinguished by a demand-dominated bill and a storm cost-recovery rider that moves with each hurricane season.
Florida Supercharger ROI — questions
- Why does the demand charge matter so much in Florida?
- FPL's GSLD-1 rates carry a high per-kW demand charge while the energy rate is comparatively low, so for a fast-charging site the demand charge dominates the bill and utilization is the single largest economic driver. The GSLD-1EV rider the model applies caps billed demand at the month's purchased energy divided by 75 hours, which softens that effect at low utilization and stops binding as utilization rises.
- Does Florida tax public EV charging per kilowatt-hour?
- No per-kWh charging tax is enacted. Two bills — one to add a 6¢/kWh fee, one to exempt charging electricity from sales tax — both failed in committee in 2025 and 2026. Florida's electricity gross-receipts and sales taxes are folded into the modeled FPL rate.
- What is the storm cost-recovery rider?
- A Public Service Commission-reviewed rider that lets FPL recover grid-hardening and storm-restoration costs on the demand side of commercial bills. It is adjusted annually and has moved by large amounts between filings, making it a variable cost tied to hurricane-season outcomes.
Sources
- Florida PSC — storm cost recovery
- FPL business rates (January 2026)
- Duke Energy Florida — Rate Schedule GSD-1 (June 2026)
- Florida DOR — gross receipts tax on utility services
- AFDC — Florida NEVI
Model a Tesla V4 Supercharger site in Florida — payback, NPV, IRR, and a 15-year cash flow from your own inputs.
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ForgeAsset is software, not investment, tax, or legal advice — outputs are model estimates from your inputs, not guarantees. Rates and programs current as of research; verify current terms with each source before committing capital.