The Cheapest and Most Expensive States to Charge an EV (2026)

How we ranked the cheapest states to charge an EV

We ranked every state by its residential electricity rate in cents per kWh, then converted that into a real monthly cost for a typical EV. The cheapest states cluster around 11¢/kWh, the most expensive push past 30¢, and the US average sits near 16.5¢/kWh.

The rates come from U.S. Energy Information Administration (EIA) residential price data. The car is a Tesla Model Y Long Range: a 75 kWh usable battery that returns about 3.5 mi/kWh at the wall, per EPA and fueleconomy.gov figures. We assume 1,000 miles of driving a month, all charged at home on Level 2.

That combination gives a clean formula anyone can copy. At 3.5 mi/kWh, 1,000 miles needs about 286 kWh a month. Multiply that by your state's rate and you get the monthly charging bill. At the US average of 16.5¢/kWh, the math lands near $47 a month, or 4.7¢ per mile.

One caveat up front. These are home-charging numbers. Public DC fast charging runs far higher, around 42¢/kWh nationally, so a road-trip charge can cost two to four times what the same energy costs in your garage. The state rankings only apply to charging at home.

Prefer to look up your own state and car? Use the interactive EV charging cost by state tool; this study is the ranked, narrative companion to it.

What are the top 10 cheapest states to charge an EV?

The cheapest states to charge an EV are North Dakota, Idaho, Wyoming, Utah, and Nebraska, all near or below 11.7¢/kWh. In those states a Model Y costs roughly $31 to $33 a month to drive 1,000 miles, about a third below the national average of about $47.

Home charging in these states is cheap because power is cheap, not because EVs behave differently. The table below shows each state's residential rate and the resulting monthly cost for our 286 kWh baseline.

Notice how tight the spread is. From North Dakota to Iowa, the monthly cost only moves by about $6. Once you're in a low-rate state, picking a slightly cheaper one barely matters. Charging habits and time-of-use plans move your bill more than crossing a state line inside this group.

What are the top 10 most expensive states to charge an EV?

The most expensive states to charge an EV are Hawaii, California, Massachusetts, Connecticut, and Rhode Island, all above 28¢/kWh. Hawaii tops the list at about 41¢/kWh, which pushes a Model Y's monthly home-charging cost near $62, almost four times North Dakota's.

Even at these rates, home charging usually still beats gas. But the gap narrows, and in the priciest states public DC fast charging at 42¢/kWh can cost about the same as filling a small gas car. The table shows where the expensive states land.

Why are some regions so much cheaper than others?

EV charging costs follow clear regional patterns. The Pacific Northwest and the Plains are the cheapest, the Northeast and Hawaii are the most expensive, and California sits high despite its size. The driver is what each region burns to make electricity.

The Pacific Northwest runs on hydro

Washington and Idaho are cheap because of dams. The Columbia and Snake River systems produce huge amounts of low-cost hydroelectric power, and hydro has almost no fuel cost once the dam is built. That's why Washington sits at about 11.9¢/kWh even with a big population.

The Plains have coal, wind, and cheap land

North Dakota, Wyoming, Nebraska, and Montana sit on cheap coal and some of the best wind resources in the country. Low population density and short transmission distances keep delivery costs down too. North Dakota's 10.9¢/kWh is the lowest in the nation for these reasons combined.

The Northeast imports fuel and space is tight

Massachusetts, Connecticut, and Rhode Island lean on natural gas but sit at the end of constrained pipelines, so winter fuel prices spike. Dense grids, high labor costs, and aging infrastructure add more. That combination keeps New England above 28¢/kWh.

Hawaii burns oil

Hawaii is a special case. With no mainland grid connection, several islands still generate electricity by burning imported petroleum, the most expensive common fuel source. That single fact explains the 41¢/kWh rate more than anything else.

Why do electricity rates differ so much between states?

Electricity rates differ because of three things: the generation mix, the regulatory structure, and delivery costs. States burning cheap coal, hydro, or wind pay less per kWh than states burning imported oil or constrained natural gas. That's the biggest lever.

Generation mix is first. A kWh from a paid-off hydro dam costs a fraction of a kWh from imported oil. States rich in hydro (Washington), wind (the Plains), or cheap coal tend to sit near the bottom of the rate table, while oil-dependent and gas-constrained states sit at the top.

Regulation is second. In regulated states, one utility owns generation and delivery and rates are set by a public commission. In deregulated states (much of the Northeast and Texas), you buy energy from competing suppliers. Deregulation can lower rates through competition, but in supply-constrained regions like New England it often does the opposite, because the wholesale price of scarce gas gets passed straight through.

• Generation mix: hydro, wind, and cheap coal push rates down; imported oil and constrained gas push them up.
• Delivery and transmission: dense, aging urban grids and long rural lines both add cost, for different reasons.
• Regulation: regulated states have stable commission-set rates; deregulated states swing with the wholesale market.
• Weather and demand: states with big summer AC or winter heating peaks build costlier grids to meet those spikes.

Delivery is third. Your bill isn't just energy. It includes transmission and distribution, the poles, wires, and substations that move power to your house. In states with old infrastructure or expensive labor, delivery charges alone can rival the energy charge, which is a big reason Northeast rates stay high.

How do time-of-use plans change your EV charging cost?

Time-of-use (TOU) plans can cut your EV charging cost by 40% to 70%, sometimes more than moving to a cheaper state would. They charge a low overnight rate and a high daytime rate, and EVs are the ideal appliance to shift, since you charge while you sleep.

Here's why TOU matters so much for EVs. Charging a car is a large, flexible, overnight load. A dishwasher can't wait for 1 a.m., but a car sitting in your garage can. If your utility offers an EV or whole-home TOU plan, you move your single biggest new electricity use into the cheapest hours of the day.

The effect can flip the rankings. A California driver on a standard rate pays about 31.8¢/kWh, near the top of the country. The same driver on an EV TOU plan charging overnight might pay 12¢ to 16¢/kWh, closer to what North Dakota pays flat. The state you live in sets the ceiling; the plan you pick sets the floor.

How does home charging compare to gas and public fast charging?

Home charging beats gas in every state except Hawaii. At the US average of 16.5¢/kWh, a Model Y costs about 4.7¢ per mile to fuel. A 28 mpg gas car at $3.20 a gallon costs about 11.4¢ per mile, more than double. Cheap states widen that gap to nearly four-to-one.

The comparison below uses our same Model Y and driving assumptions against the gas baseline, so the per-mile numbers are directly comparable.

Two things stand out. First, even at the national fast-charging rate of 42¢/kWh, an EV still fuels for about half the cost of a 28 mpg gas car per mile. Second, if you rely mostly on public DC fast charging instead of a home plug, you give up most of the EV cost advantage. Home charging is where the savings live.

One more note for 2026 buyers. The federal EV purchase tax credit (30D/25E) ended September 30, 2025 under the One Big Beautiful Bill Act, so it no longer offsets a new EV. The home charger credit (30C, Form 8911, 30% up to $1,000 in eligible census tracts) still exists but expires June 30, 2026. The 25C heat-pump credit expired December 31, 2025. If a home charger install is in your plans, the 30C window is short. Check IRS guidance for your address before you count on it.

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