Does Oklahoma charge a demand charge on EV charging?

It depends on the utility. PSO's public-EV-charging schedule in Tulsa has no demand charge at all — energy-only time-of-use pricing. OG&E's standard book in Oklahoma City bills about $8.86 per kW bundled on the monthly peak; its EV-specific pilot closed to new subscribers in June 2026.

How does Oklahoma's 3¢/kWh charging tax work?

The DRIVE Act levies 3 cents per kWh on electricity used to charge EVs at fee-charging public stations above 50 kW, effective since January 2024. The station operator licenses with the Oklahoma Tax Commission and files returns; the model carries the tax as an operating cost from year one. While it is remitted, driver-side session sales are exempt from Oklahoma sales tax.

Are PSO's current rates final?

No — the figures include a 17.05% interim rate adjustment that took effect July 2026 subject to refund with interest, under a rate case whose settlement was filed at the end of June 2026. The final order re-bases the numbers; the library re-derives at the order, and the interim direction is expected to be down.

ForgeAsset / Supercharger ROI / Oklahoma

Tesla Supercharger ROI in Oklahoma

Oklahoma splits into two very different utility stories. Tulsa sits in PSO territory, where a filed public-EV-charging schedule prices energy only — no demand charge exists in the schedule at all. Oklahoma City is OG&E territory, where the filed EV pilot closed to new subscribers in June 2026, so a new site takes the standard large-power time-of-use book with its demand charge. On top of both sits the DRIVE Act: 3 cents per kWh on public charging above 50 kW, in force since 2024 — with the trade that driver-side session sales are exempt from sales tax while it is remitted.

Model a Oklahoma site

What makes Oklahoma economics distinct

Tulsa's EV schedule has no demand charge — and a rate case in flight

PSO's Schedule PEVC is filed for commercially operated standalone public charging stations: two energy windows, no ratchet, no kW charge of any kind. The current figures include a 17.05% interim rate adjustment that took effect in July 2026 subject to refund — a settlement filed at the end of June sharply cut the utility's original request, and the final order re-bases the row when it lands.

Oklahoma City models materially worse than Tulsa

OG&E filed an EV time-of-use pilot, but it closed to new subscribers on June 1, 2026. A new Oklahoma City site therefore takes the standard PL-TOU book: about $8.86 per kW bundled on the monthly peak plus time-of-use energy. At default volumes the OKC site bills roughly a third more than the Tulsa site — a filed-reality gap, not a modeling artifact.

The 3¢/kWh DRIVE Act tax, and its sales-tax trade

Oklahoma levies 3 cents per kWh on electricity dispensed at fee-charging public stations above 50 kW, in force since January 2024 — about $34,000 per year at default volumes, carried as an operating cost from year one. The statute pairs it with an exemption: session sales to drivers are exempt from sales tax while the charging tax is collected and remitted.

A 45% state credit the model deliberately leaves out

Oklahoma offers a state income-tax credit of up to 45% of the cost of commercial alternative-fueling infrastructure, including EV charging, through tax years beginning before the end of 2028, with a five-year carryforward. The engine models federal income tax only, so this rides as a disclosure rather than a modeled line — at face value it is the largest unmodeled positive in any covered state.

Utilities and tariffs modeled in Oklahoma

Utility & tariff	Energy	Demand
PSO Schedule PEVC	12.1¢/kWh–16.5¢/kWh by time of day	none (energy-only)
OG&E PL-TOU SL5	6.5¢/kWh–10.3¢/kWh by time of day	$8.86/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.

Oklahoma tax profile

Sales tax on hardware: 8.52%
Business personal property tax: 1.37% of equipment value (example rate)
Clean-fuels credit: no program
Per-kWh charging excise: 3.0¢/kWh (in force)

Oklahoma tax defaults applied: no clean-fuels credit program exists in Oklahoma (the LCFS revenue line is $0), and LLC costs use the $25/yr annual certificate — the franchise tax was repealed in 2024. Sales tax defaults to Tulsa's 8.517% combined rate (Oklahoma City runs 8.625%) and separately stated installation labor is untaxed. Business personal property runs about 1.37% of depreciated cost per year in Tulsa; Oklahoma City runs higher and the field is editable. Oklahoma's DRIVE Act levies 3¢/kWh on public charging above 50 kW, in force since 2024 and included from year one — on the order of $34,000 per year at default volumes; driver-side session sales are exempt from sales tax while it is remitted. A state income-tax credit of up to 45% of commercial charging infrastructure cost (through tax years beginning before the end of 2028, five-year carryforward) is not modeled — the engine models federal income tax only.

Oklahoma programs and incentives

Alternative Fueling Infrastructure tax credit (68 O.S. § 2357.22)

Up to 45% of the cost of new commercial alternative-fueling infrastructure, EV charging included, through tax years beginning before 2028-12-31 with a five-year carryforward. A state income-tax credit — disclosed, not modeled.

ChargeOK (DEQ, VW settlement lineage)

Competitive grants historically covering up to 80% of eligible public DC fast-charging costs; round status varies. Site-specific awards enter the model through the grant inputs.

NEVI (federal, ODOT-administered)

Federal corridor DC fast-charging funding administered by the Oklahoma DOT in award rounds along the interstate network.

Oklahoma charging market

Oklahoma carries roughly 33 Supercharger stations along I-35, I-40, and I-44. PSO (an AEP subsidiary) serves Tulsa and Lawton; OG&E serves Oklahoma City, Norman, and most of the central corridor. Edmond and Stillwater run municipal utilities the model does not cover — addresses there see a named-utility notice rather than a wrong auto-selection.

Oklahoma Supercharger ROI — questions

Does Oklahoma charge a demand charge on EV charging?: It depends on the utility. PSO's public-EV-charging schedule in Tulsa has no demand charge at all — energy-only time-of-use pricing. OG&E's standard book in Oklahoma City bills about $8.86 per kW bundled on the monthly peak; its EV-specific pilot closed to new subscribers in June 2026.
How does Oklahoma's 3¢/kWh charging tax work?: The DRIVE Act levies 3 cents per kWh on electricity used to charge EVs at fee-charging public stations above 50 kW, effective since January 2024. The station operator licenses with the Oklahoma Tax Commission and files returns; the model carries the tax as an operating cost from year one. While it is remitted, driver-side session sales are exempt from Oklahoma sales tax.
Are PSO's current rates final?: No — the figures include a 17.05% interim rate adjustment that took effect July 2026 subject to refund with interest, under a rate case whose settlement was filed at the end of June 2026. The final order re-bases the numbers; the library re-derives at the order, and the interim direction is expected to be down.

Sources

Model a Tesla V4 Supercharger site in Oklahoma — payback, NPV, IRR, and a 15-year cash flow from your own inputs.

Run a Oklahoma scenario

Other states: California, North Carolina, Georgia, Oregon, Pennsylvania, Florida, Arizona, Texas, Virginia, Illinois, Michigan, Tennessee, Montana, Idaho, Kansas, Nebraska, North Dakota, South Dakota, Wyoming, New Mexico, Alabama, Missouri. Coverage spans twenty-three states in total — see the full list.

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.