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Tesla Supercharger ROI in Minnesota

Minnesota files what amounts to structural demand-charge relief for fast charging: Xcel's A90 public-charging pilot caps on-peak billing demand at monthly energy divided by 100 hours, and at charging-site utilization that cap always binds — the window demand charge converts into the energy rate by filed arithmetic, leaving a residual demand line under $4 per kilowatt-month. Equipment pays no property tax by statute. The costs arrive elsewhere: a 5¢-per-kWh charging tax starts July 2027, and Minnesota's contractor rules put installation labor in the sales-tax base.

What makes Minnesota economics distinct

A demand cap that only caps the window

Unlike the Dakota books, whose caps cover total billing demand, A90's kWh÷100 cap applies to the on-peak window only — the off-peak-excess component survives as a real, small demand line of about $3.92 per kilowatt-month. The fold is exact while monthly load factor stays under roughly 14%, and above that envelope it overstates rather than understates the bill.

The heaviest charging tax in the covered set, from 2027

Minnesota taxes electricity delivered at public stations above 50 kW at 5¢ per kilowatt-hour from July 2027 — roughly $40,000 a year at default volumes, nearly twice Georgia's rate. The model carries it from its effective model year; because the engine bills whole years, the first year also counts the pre-July months, an overstatement of about $20,000 that is disclosed rather than hidden.

No property tax on the hardware, but taxed install labor

Minnesota exempts business personal property by statute — the equipment line is a true zero, worth roughly $13,000 a year against the California calibration. The same machinery language points the sales-tax characterization at tangible personal property, so the model taxes installation labor at Minneapolis's 9.025% combined rate as the conservative default; the share is editable if the install runs as a real-property contract.

A rate-case order lands within weeks

Xcel's two-year rate case reached a verbal decision in June 2026 with the written order due by July 31; the modeled row carries the interim surcharge in force, which approximates the decided magnitude, and the library re-derives at the compliance filing. The pilot schedule also waives contribution-in-aid-of-construction for new service — a filed make-ready benefit.

Utilities and tariffs modeled in Minnesota

Utility & tariffEnergyDemand
Xcel Energy MN EV Charging A9018.5¢/kWh–23.3¢/kWh by time of day$3.92/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.

Minnesota tax profile

  • Sales tax on hardware: 9.03%
  • Business personal property tax: none
  • Clean-fuels credit: no program
  • Per-kWh charging excise: 5.0¢/kWh from model year 2

Minnesota tax defaults applied: no clean-fuels credit program exists in Minnesota (the LCFS revenue line is $0). Minnesota's 5¢/kWh tax on public charging above 50 kW takes effect July 2027 and is included from model year two — the model bills whole years, so the first excise year also counts January through June 2027, overstating that year by roughly $20,000 at default volumes; the start year is editable. Sales tax uses Minneapolis's 9.025% combined rate and, under the tangible-personal-property reading of Minnesota's contractor rules, applies to installation labor as well as hardware — the share is editable if the install is treated as a real-property contract. Business personal property is exempt by statute — a structural zero. Entity costs run about $250 per year under the state minimum fee, and the $100-per-port annual inspection fee rides the fixed operating costs. The electricity sales tax is already inside the modeled utility rate.

Minnesota programs and incentives

MPCA public DCFC grants (VW settlement)

Grants of up to $150,000 for public DC fast-charger installation with a 20% match, in periodic rounds; a specific award enters the model through the grant inputs.

NEVI (federal, MnDOT-administered)

Federal corridor DC fast-charging funding along I-94, I-35, and I-90, administered in award rounds.

Minnesota charging market

Minnesota carries roughly 38 Supercharger stations, concentrated in the Twin Cities metro and along I-94 and I-35. Xcel Energy serves Minneapolis, St. Paul, and most of the populous southeast. Duluth is Minnesota Power territory and Rochester runs a municipal utility — neither is covered; addresses there see a named-utility notice rather than a wrong auto-selection.

Minnesota Supercharger ROI — questions

Does Minnesota charge a demand charge on EV charging?
Structurally, mostly no. Xcel's A90 pilot caps on-peak billing demand at monthly energy divided by 100 hours; at fast-charging load factors the cap binds and the window demand charge rides the energy rate exactly. What survives is the off-peak-excess component — about $3.92 per kilowatt-month — and the model prices both parts of the decomposition.
How does Minnesota's charging tax work?
From July 2027, electricity delivered at public charging stations above 50 kW is taxed at 5¢ per kilowatt-hour, paid by the operator with monthly filings and a free operator license that opens in January 2027. At default volumes it runs about $40,000 per year — the largest charging excise in the covered set. The model includes it from its effective model year, with the start year editable.
Is charging hardware taxed as property in Minnesota?
No — Minnesota statute excludes business machinery and equipment from the property-tax rolls regardless of size, weight, or attachment, so the model's business-personal-property line is $0. The trade-off is on the sales-tax side: the same machinery characterization makes the install taxable as tangible personal property, so the model taxes installation labor by default.

Sources

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

Run a Minnesota 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, Oklahoma, Alabama, Missouri, Wisconsin, Iowa, Indiana, Louisiana, Nevada, Washington, Ohio, Utah, New Hampshire, Kentucky, South Carolina, Massachusetts, New Jersey, Colorado, Maryland. Coverage spans thirty-nine 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.