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
Verdigris Valley GSL	5.4¢/kWh flat	none

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 Oklahoma in the US Supercharger Economics Map — every US Supercharger over utility territories colored by the derived effective electricity cost per dispensed kWh.

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, Wisconsin, Iowa, Indiana, Louisiana, Nevada, Washington, Ohio, Utah, New Hampshire, Kentucky, South Carolina, Massachusetts, Minnesota, New Jersey, Colorado, Maryland, Arkansas, Mississippi, West Virginia, Alaska, Hawaii, Washington, DC, Maine, Delaware, Vermont, Rhode Island, New York. Coverage spans forty-nine states and the District of Columbia 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.