How much does it cost to charge a GMC Sierra EV at home in Montana?
$21.25 for a full charge
- Per 100 miles
- $7.51
- A month at 1,000 miles
- $75.09
- Per mile
- 7.5¢
- Gas at 30 mpg, same miles
- $149.33
2026 GMC Sierra EV Elevation Standard Range, EPA 49.6 kWh per 100 miles, at Montana’s average rate of 15.1¢ per kWh (EIA, June 2026). Driving the full EPA range of 283 miles at 49.6 kWh per 100 miles takes about 140 kWh from the wall, charging losses included. How we calculate this
Electricity versus gasoline
| GMC Sierra EV | Gas car | Difference | |
|---|---|---|---|
| Per 100 miles | $7.51 | $14.93 | $7.42 |
| A month (1,000 mi) | $75.09 | $149.33 | $74.24 |
| A year (12,000 mi) | $901.13 | $1,792.00 | $890.87 |
Home charging beats gas for this car as long as electricity costs less than 30.1¢ per kWh. Negative differences mean the gas car is cheaper. The 30 mpg comparison car is our assumption; see the methodology.
What it costs at other monthly mileages
| Miles a month | Energy | Electricity | Gas (30 mpg) |
|---|---|---|---|
| 500 | 248 kWh | $37.55 | $74.67 |
| 750 | 372 kWh | $56.32 | $112.00 |
| 1,000 | 496 kWh | $75.09 | $149.33 |
| 1,500 | 744 kWh | $112.64 | $224.00 |
| 2,000 | 992 kWh | $150.19 | $298.67 |
Charging in Montana compared with other states
Montana’s residential rate is the 16th cheapest of 51 states and DC, 3.2¢ below the US average of 18.3¢ (−17%). Montana’s rate is up 0.3¢ from June 2025 (14.8¢, +2.2%).
Ways to spend less
- Ask your utility about a time-of-use or EV rate and schedule charging for off-peak hours; the car or charger can do it automatically.
- Precondition the cabin while the car is still plugged in, so heating or cooling comes from the grid instead of the battery.
- Keep tires at the pressure on the door-jamb sticker; underinflated tires raise consumption.
- Drive 100 fewer miles a month: saves $7.51 at 15.1¢ per kWh.
Questions
How much does it cost to fully charge a GMC Sierra EV in Montana?
About $21.25. Driving the full EPA range of 283 miles at 49.6 kWh per 100 miles takes about 140 kWh from the wall, charging losses included. at 15.1¢ per kWh.
How much does it cost to charge a GMC Sierra EV per month?
About $75.09 a month at 1,000 miles (15.1¢ per kWh), or $901.13 a year in Montana. At the EPA rating of 49.6 kWh per 100 miles, 1,000 miles take 496 kWh from the wall.
How much does it cost to charge a GMC Sierra EV per mile?
7.5¢ a mile, or $7.51 per 100 miles in Montana.
Is charging a GMC Sierra EV cheaper than gas?
Yes in Montana: $7.51 per 100 miles against $14.93 for a 30 mpg car at $4.48 a gallon (AAA, September 24, 2026). It stays cheaper as long as electricity costs less than 30.1¢ per kWh.
How many kWh does it take to charge a GMC Sierra EV?
Driving the full EPA range of 283 miles at 49.6 kWh per 100 miles takes about 140 kWh from the wall, charging losses included. Most charging sessions top up part of the battery, so a typical night uses less.
How does charging in Montana compare with other states?
Montana’s residential rate is the 16th cheapest of 51 states and DC, 3.2¢ below the US average of 18.3¢ (−17%). Montana’s rate is up 0.3¢ from June 2025 (14.8¢, +2.2%).
Sources
- EPA rating carrier: Elevation Standard Range 68 MPGe (75/61); Denali SR 67 MPGe
- EPA rating carrier: Standard range 283 mi; Extended 410 mi; Max Range 478 mi (AT4/Denali)
- U.S. EPA and DOE, fueleconomy.gov (official ratings; verify here)
- AAA, national average price of regular gasoline, September 24, 2026
- U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A: average price of electricity to ultimate customers, residential, June 2026 Figures transcribed from republications of this table on September 26, 2026; pending direct verification from the EIA API.
- Carrier page: June 2026 residential average price, citing EIA Electric Power Monthly Table 5.6.A
Usage assumptions (hours a day, season) are ours and listed on the methodology page. Found an error? Tell us.