Marcus Whitfield

EV Running-Cost Analyst

Marcus models US electricity tariffs and electric-vehicle running costs for ChargeCostLab. His work reconciles federal energy data, EPA efficiency ratings and individual utility tariffs into per-state figures a driver can check against their own bill. He takes no payment from utilities, automakers or charging networks, and every calculation here is reproducible from the cited primary sources.

Areas of expertise

Electric vehicle charging costs
US residential electricity tariffs
Time-of-use rate plans
EV energy efficiency

Articles by Marcus Whitfield

EV Guides18 min read

Per-kWh vs Per-Minute EV Charging Billing by State (2026): Where It's Actually Legal

Which US states require, permit or still restrict billing EV charging by the kilowatt-hour instead of by the minute - the legal-metrology history, the 2026 state-by-state status, and why per-minute…

Marcus WhitfieldEV Running-Cost Analyst11 Aug 202632 sources

EV Guides21 min read

Is NEVI-Funded EV Charging Actually Free or Cheaper? (2026)

NEVI put $5 billion of federal money into public EV chargers. Does that make the electricity at a NEVI-funded station cheaper than any other charger? The pricing evidence, station by station.

Marcus WhitfieldEV Running-Cost Analyst11 Aug 202633 sources

Charging Costs21 min read

Cost to Charge an EV at Home by State (2026): The Cheapest and Most Expensive States, Ranked

What it really costs to charge an electric car at home across all 50 US states in 2026 - price per kWh times real consumption, on EIA, EPA, FHWA and utility data.

Marcus WhitfieldEV Running-Cost Analyst30 Jun 202637 sources