Does Vermont charge a demand charge on EV charging?

Yes. Green Mountain Power's commercial time-of-use rate bills two additive demand components — a peak-window charge near $19.94 per kilowatt and an off-peak charge near $5.74 — which the model sums to about $30.06 all-in per kilowatt-month, a figure that cannot understate the bill. Burlington Electric bills a single flat charge that works out to about $30.40 all-in. Neither utility files a commercial EV-specific rate.

What happens to Vermont rates in October 2026?

Both modeled utilities step on October 1, 2026: Green Mountain Power has a 7.5% increase filed and pending before the Public Utility Commission, and Burlington Electric filed a 2.99% change for the same date. The modeled rates carry the currently effective book and re-derive when the new sheets publish.

Does Vermont tax charging equipment as business property?

In the canonical metro, no — South Burlington's charter exempts business personal property first located in the city after April 1996, a verified structural zero. Vermont towns set their own treatment: Rutland City assesses half of original cost at its municipal rate, about 1.08% of cost per year, while Burlington's business personal property tax ended July 2026. The field is editable per site.

ForgeAsset / Supercharger ROI / Vermont

Tesla Supercharger ROI in Vermont

Vermont is the New England exception: a fully regulated state whose large-commercial rates are bundled and filed — the structure that keeps New York, Connecticut, and Rhode Island out of the library simply does not exist here. Green Mountain Power serves every Supercharger metro outside Burlington city limits on a time-of-use rate that bills demand twice, once on the peak inside a sixteen-hour weekday window and once on the peak over all remaining hours. The model sums both components into a single per-kilowatt figure — about $30.06 all-in — a treatment that can overstate but never understate the bill. Inside Burlington, the municipal utility's flat-rate schedule lands within five percent of the same monthly cost despite an entirely different structure. One filed date matters more than any other: both utilities step their rates on October 1, 2026.

Model a Vermont site

What makes Vermont economics distinct

Two demand windows, one conservative number

Rate 63/65 bills about $19.94 per kilowatt on the peak inside the company's sixteen-hour weekday window and about $5.74 on the peak across nights and weekends — additive components measured separately. Because each component's measured maximum can never exceed the site's hardware peak, the summed figure of roughly $30.06 all-in holds as a ceiling regardless of when the monthly maxima land. The window ratchet stays inert at charging-site load shapes.

October 1 is the date that moves every number

Green Mountain Power's multiyear rate plan steps each October, and the FY27 filing is already in: a 7.5% increase effective with October 2026 bills, pending commission approval, with the surcharge percentages resetting on the same clock. Burlington Electric filed its own 2.99% change for the same date. The modeled rates carry the current book and re-derive at the order.

A light tax stack with one open bill line

Hardware takes the 7% combined sales tax in South Burlington with installation labor untaxed under Vermont's contractor rule; the canonical metro's property tax on equipment is a charter-verified zero; no per-kWh charging tax exists; and the entity-level income charge is a flat $250 minimum. The one line still open on the Green Mountain Power row is the statewide energy efficiency charge — a commission-set bill adder around five percent of a large bill, published only inside the regulator's case system; the Burlington row already includes it from the utility's filed card.

Why Vermont is covered when its neighbors are not

New York, Connecticut, and Rhode Island price large-customer supply at monthly market rates with no filed fixed alternative, and their EV-specific rates vary by load factor — structures the engine deliberately does not approximate. Vermont's rates are bundled, flat year-round, and filed to the digit. The state's rate design work under Act 55 has so far produced residential EV schedules only; a commercial EV rate, if one is ever filed, would reopen the schedule question in the model's favor.

Utilities and tariffs modeled in Vermont

Utility & tariff	Energy	Demand
Green Mountain Power 63/65 TOUThe filed rate book for this territory records no EV-specific commercial rate, so the modeled cost is the standard schedule. Demand follows the model's conservative convention — 150 kW per stall billed every month, the worst-case coincident peak — so a site whose metered peak runs below that would see a lower demand line.	12.5¢/kWh–16.5¢/kWh by time of day	$30.06/kW of monthly peak
Burlington Electric LGThe filed rate book for this territory records no EV-specific commercial rate, so the modeled cost is the standard schedule. Demand follows the model's conservative convention — 150 kW per stall billed every month, the worst-case coincident peak — so a site whose metered peak runs below that would see a lower demand line. Burlington Electric's EV rate is limited to utility-owned charging.	12.6¢/kWh flat	$30.40/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.

Vermont tax profile

Sales tax on hardware: 7%
Business personal property tax: none
Clean-fuels credit: no program
Per-kWh charging excise: none

Vermont tax defaults applied: no clean-fuels credit program reaches EV charging in Vermont (the LCFS revenue line is $0), and LLC costs use the flat $250 business entity income tax minimum. Sales tax is 7% on hardware in South Burlington — the statewide 6% plus the local option 1% — with installation labor untaxed under Vermont's contractor rule; St. Johnsbury sites pay 6%. Business personal property is $0 at the canonical metro under South Burlington's charter exemption for post-1996 property; other Vermont towns set their own treatment — Rutland City works out to about 1.08% of original cost per year — and the field is editable. Vermont's sales tax on the commercial electric bill and the utility surcharges are already inside the modeled utility rates. No per-kWh charging tax exists in Vermont; the state charges electric vehicles an annual registration fee instead, and a road-usage-charge study lists a per-kWh fee at public stations as a possible future design.

Vermont programs and incentives

NEVI (VTrans-administered)

Vermont's $21.2 million federal allocation is fully obligated: the first-round awards contracted 60 ports to be operational by December 2026 across the priority corridors, and a second-round solicitation was anticipated in 2026 for the remaining sites. A specific award enters the model through the grant inputs.

Public Attraction Charger Grant

State grants up to $160,000 for DC fast chargers at public attractions (Level 2 up to $56,000), alongside multifamily and workplace charger grants up to $100,000 and 1% fixed-rate infrastructure loans — all grant-shaped inputs where a site qualifies.

Vermont charging market

Vermont hosts eight Supercharger sites tracking its two interstates and the western corridor: South Burlington, Williston, Berlin at the I-89 midpoint, St. Johnsbury on I-91 north, Brattleboro at the Massachusetts approach, Rutland and Vergennes on the Route 7 spine, and Bennington in the southwest corner — every one in Green Mountain Power territory. Burlington proper is the municipal utility's hole in the map, covered by its own modeled row should a site land there. The rural cooperatives and village utilities — Washington Electric around Berlin's outskirts, Lyndonville beside St. Johnsbury, Stowe — appear as named territories with a notice rather than a wrong auto-selection.

Vermont Supercharger ROI — questions

Does Vermont charge a demand charge on EV charging?: Yes. Green Mountain Power's commercial time-of-use rate bills two additive demand components — a peak-window charge near $19.94 per kilowatt and an off-peak charge near $5.74 — which the model sums to about $30.06 all-in per kilowatt-month, a figure that cannot understate the bill. Burlington Electric bills a single flat charge that works out to about $30.40 all-in. Neither utility files a commercial EV-specific rate.
What happens to Vermont rates in October 2026?: Both modeled utilities step on October 1, 2026: Green Mountain Power has a 7.5% increase filed and pending before the Public Utility Commission, and Burlington Electric filed a 2.99% change for the same date. The modeled rates carry the currently effective book and re-derive when the new sheets publish.
Does Vermont tax charging equipment as business property?: In the canonical metro, no — South Burlington's charter exempts business personal property first located in the city after April 1996, a verified structural zero. Vermont towns set their own treatment: Rutland City assesses half of original cost at its municipal rate, about 1.08% of cost per year, while Burlington's business personal property tax ended July 2026. The field is editable per site.

Sources

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

Run a Vermont scenario

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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.