State of the Data
Every rate, fee, credit, and assumption that feeds the calculator — with the source, the date it was pulled, and how confident we are in it.
Last reviewed: April 18, 2026. Rates and programs change; refresh quarterly or when major legislation passes.
How to read this page
- Verified — pulled from an official or authoritative source on the retrieval date.
- Approximate — our best estimate; authoritative source exists but was not directly retrieved, or values vary across the population we're summarizing.
- Pending — we've flagged this for verification and it should be double-checked before relying on it.
Federal tax credits
IRS clean vehicle and refueling property credits under the 2022 IRA as modified by the 2025 OBBB.
Federal tax credits
IRS clean vehicle and refueling property credits under the 2022 IRA as modified by the 2025 OBBB.
West Virginia state fees
Registration base fee plus EV/PHEV surcharges under WV Code §17A-10-3c.
West Virginia state fees
Registration base fee plus EV/PHEV surcharges under WV Code §17A-10-3c.
How the WV registration fees stack up
Every passenger vehicle in WV pays the $51.50 Class A base registration. EVs and PHEVs pay an additional surcharge on top of that.
- Gasoline car: $51.50 total
- Plug-in hybrid: $51.50 + $100 = $151.50 total
- Battery-electric: $51.50 + $200 = $251.50 total
The $250-ish figure that shows up in casual sources is the total annual registration for a BEV; the $200 in the statute is the EV-specific surcharge on top of the base fee. Our calculator adds $200 (not $250) to EV annual cost because the gasoline-vehicle comparison already excludes the $51.50 base — we're comparing the incremental cost of going electric, not the total DMV bill.
Appalachian Power (AEP) — residential rates
Southern and central West Virginia. Rates effective December 12, 2025.
Appalachian Power (AEP) — residential rates
Southern and central West Virginia. Rates effective December 12, 2025.
Mon Power (FirstEnergy) — residential rates
Northern and north-central West Virginia. Serves ~395,000 accounts across 34 counties.
Mon Power (FirstEnergy) — residential rates
Northern and north-central West Virginia. Serves ~395,000 accounts across 34 counties.
Wheeling Power — residential rates
AEP subsidiary serving the northern panhandle (Wheeling–Weirton corridor). Approximate — needs tariff verification.
Wheeling Power — residential rates
AEP subsidiary serving the northern panhandle (Wheeling–Weirton corridor). Approximate — needs tariff verification.
Rural electric cooperatives
Various rural WV counties. Coop-specific rates are not independently verified.
Rural electric cooperatives
Various rural WV counties. Coop-specific rates are not independently verified.
Utility rebates and EV programs
What's currently available for WV EV owners through their utility.
Utility rebates and EV programs
What's currently available for WV EV owners through their utility.
Gas price baseline
Used to compare EV charging costs against what a gasoline vehicle would pay.
Gas price baseline
Used to compare EV charging costs against what a gasoline vehicle would pay.
DC fast charging (DCFC) assumptions
Rate and time math used for long-trip public fast-charging stops.
DC fast charging (DCFC) assumptions
Rate and time math used for long-trip public fast-charging stops.
Why DCFC deserves its own line
Public fast charging typically costs ~3× more per kWh than charging at home. For a driver who takes 10+ road trips a year, quietly pricing every kWh at the home utility rate overstates EV savings by hundreds of dollars. The calculator now splits BEV energy into home-rate kWh (commute + long-trip “first tank” before departure) and DCFC-rate kWh (mid-route charging stops).
Calculation assumptions
Physics and fleet-behavior constants used in the TCO math.
Calculation assumptions
Physics and fleet-behavior constants used in the TCO math.
Public charger data (/chargers map)
How the WV charger map gets its data and how fresh it is.
Public charger data (/chargers map)
How the WV charger map gets its data and how fresh it is.
Vehicle data methodology
How we source MSRPs, EPA ranges, and efficiency for the 43 EVs and PHEVs in the picker.
Vehicle data methodology
How we source MSRPs, EPA ranges, and efficiency for the 43 EVs and PHEVs in the picker.
Vehicle specs are curated — not scraped — from the following sources as of late 2025 / early 2026:
- MSRPs: manufacturer websites and automotive press for MY2025 base trims. These are approximations; actual transaction prices vary by region, incentive, and trim level. Refresh quarterly.
- EPA combined range (range_mi): EPA-certified values from fueleconomy.gov.
- Winter range (winter_range_mi): our derated estimate applying a ~28% haircut to EPA combined range.
- City/highway efficiency: EPA MPGe-to-kWh/100mi conversions from fueleconomy.gov.
- Tax credit eligibility flags: historical (pre-OBBB). Retained in the dataset but the §30D credit is terminated for post-2025-09-30 purchases, so these flags no longer drive the calculator's current-purchase output.
We deliberately did not attempt to re-verify every MSRP on the April 2026 refresh cycle. Directional accuracy is the goal — if you're deciding between two vehicles that are $2,000 apart in our data, the right move is to check current dealer inventory in your area, not to trust our number to the dollar.
Three-letter confidence on this one: Approximate across the fleet.
Known gaps and caveats
What we haven't verified, and where users should double-check.
Known gaps and caveats
What we haven't verified, and where users should double-check.
- Wheeling Power tariffs were not retrievable on the April 2026 refresh; residential rate and customer charge shown are estimates based on parity with AEP.
- Rural coop rates are estimates; the v1 UI directs coop members to contact their cooperative rather than relying on these numbers.
- ZIP-prefix service territory mapping between utilities is a heuristic — the real boundaries are account-level and not publicly published in a clean form. A user on the edge of two territories may resolve to the wrong utility; the UI should encourage them to confirm against their actual bill.
- Vehicle MSRPs are MY2025 base-trim approximations and do not reflect dealer markups, discounts, or incentives. Not individually re-verified this cycle.
- Tax credit transition rules: if a user is reviewing a past purchase made before 2025-09-30 under a binding contract, the old IRA credit rules may still apply to their filing. This calculator is scoped to current-purchase decisions.
- Federal §30C cliff: the home charger credit terminates June 30, 2026. Users planning an installation should factor timing into their decision.