Cost to Charge a GMC Sierra EV in Connecticut

$49.36 for a full charge at 24.32¢/kWh — $12.04 per 100 miles, about $1,445 a year.

GMC Sierra EV in Connecticut

$49.36 for a full charge

Per 100 miles: $12.04
Per mile: $0.12
Per year: $1,445
vs petrol / yr: $189

Electricity per year
Petrol per year

The full picture

Charging cost breakdown for a GMC Sierra EV
Item	Energy	Cost
This charge	202.9 kWh	$49.36
Full charge (0–100%)	202.9 kWh	$49.36
Per 100 miles	49.5 kWh	$12.04
Per year (12,000 mi)	5940.0 kWh	$1,445
Same year on petrol (30 mpg)	—	$1,634
Difference	—	$189

What charging actually costs here

Filling a GMC Sierra EV from empty in Connecticut costs $49.36. The car draws 202.9 kWh from the wall for a full 410-mile charge, and Connecticut residential electricity averages 24.32¢ per kWh. That works out at $12.04 per 100 miles, or $0.12 a mile.

Connecticut is more expensive than average: 24.32¢ against a national mean of 19.42¢, which ranks it 40 of 51 for electricity price. The same car costs $26.61 to fill in Nevada and $107.00 in Hawaii — a 4.0× spread across the country for identical driving.

Against a petrol car doing 30 mpg at $4.09 a gallon, electricity here is 1.1× cheaper per mile: $12.04 versus $13.62 per 100 miles. Over 12,000 miles a year that is $189 saved.

Similar EVs in Connecticut

Charging cost of comparable EVs in Connecticut
Vehicle	Per 100 mi	Full charge	Per year
Ford F-150 Lightning	49.4 kWh	$28.83	$1,442
Chevrolet Silverado EV	47.8 kWh	$49.29	$1,395
Rivian R1S	44.4 kWh	$40.38	$1,296
Rivian R1T	44.4 kWh	$40.38	$1,296
Kia EV9	43 kWh	$27.19	$1,255
Tesla Cybertruck	42.9 kWh	$33.91	$1,252

The same car in nearby-priced states

Charging a GMC Sierra EV in states with similar electricity prices
State	¢/kWh	Full charge	Per year
Pennsylvania	21.73	$44.10	$1,291
Maryland	21.84	$44.32	$1,297
Michigan	22.99	$46.66	$1,366
District of Columbia	24.39	$49.50	$1,449
Vermont	24.44	$49.60	$1,452
New Jersey	24.95	$50.64	$1,482

Frequently asked questions

How much does it cost to charge a GMC Sierra EV in Connecticut?

$49.36 for a full charge from empty. The car needs 202.9 kWh at the wall and Connecticut residential electricity averages 24.32¢ per kWh.

How much does a GMC Sierra EV cost per mile in Connecticut?

About $0.12 a mile, or $12.04 per 100 miles. Over 12,000 miles a year that is roughly $1,445 of electricity.

Is charging a GMC Sierra EV cheaper than petrol in Connecticut?

Yes — 1.1 times cheaper per mile. Electricity costs $12.04 per 100 miles here against $13.62 for a 30 mpg petrol car at $4.09 a gallon, a saving of about $189 a year.

How long does a full charge last?

The EPA rates the GMC Sierra EV at 410 miles combined. Cold weather, motorway speeds and a loaded car all reduce that; the EPA number is a standardised test, not a guarantee.

Does this include charging losses?

Yes. The EPA's 49.5 kWh/100 mi figure is measured at the wall socket, so the energy lost in the charger and cabling is already in the number. No extra efficiency factor is applied.

Vehicle data: EPA fueleconomy.gov, model years 2025-2027. Electricity: EIA Electric Power Monthly Table 5.6.A, residential, June 2026. Petrol: EIA weekly retail gasoline price, 24 August 2026.

Estimates for informational purposes only. Real charging cost depends on your tariff, time of use, charger efficiency, temperature, driving style and state of charge. EPA figures are a standardised test result, not a promise about your car.