EV Charging Cost in Idaho (2026)
Home rate: 10.8¢/kWh (5.3¢ below the national average). Charging 12,000 mi/yr at home costs $341. Public DC fast charging costs $1064 for the same miles.
Charging Costs in Idaho by Method
| Charging Method | Rate (¢/kWh) | Cost Per Mile | 12,000 mi/yr |
|---|---|---|---|
| Home Level 2 | 10.8¢ | 2.8¢ | $341 |
| Public Level 2 | 27.0¢ | 7.1¢ | $853 |
| DC Fast Charging | 33.7¢ | 8.9¢ | $1064 |
| Typical Mix (80% home / 15% L2 / 5% DCFC) | – | 3.8¢ | $454 |
| Gas Car (28 MPG) | $3.35/gal | 12.0¢ | $1436 |
Assumes 3.8 mi/kWh EV efficiency, 12,000 miles/year. Public L2 and DCFC rates estimated from regional network pricing. Home rate: EIA 2025 residential average for Idaho.
EV vs Gas in Idaho: Fuel Cost Comparison
EV Charging in Idaho: What to Know
Idaho's residential electricity rate of 10.8¢/kWh is 5.3¢ below the national average of 16.1¢/kWh. That puts Idaho among the cheapest states for EV charging — you'll save more on fuel here than most EV owners nationwide.
At 2.8¢ per mile for home charging versus 12.0¢ per mile for a 28 MPG gas car at current Idaho gas prices ($3.35/gallon), the per-mile gap is 9.2¢. Over 12,000 miles per year, that's $1095 in favor of the EV.
Most Idaho utilities offer time-of-use rates that can reduce overnight charging costs below the residential average. If you charge overnight (midnight to 6am), ask your utility about EV or off-peak rates. Even a few cents per kWh savings adds up to $100–$200/year for average EV drivers.
Public Charging Networks in Idaho
| Network | DC Fast (¢/kWh) | vs Home |
|---|---|---|
| Tesla Supercharger | 28¢–48¢ | 252% more |
| Electrify America | 25¢–48¢ | 238% more |
| EVgo | 37¢–55¢ | 326% more |
| ChargePoint | 15¢–49¢ | Varies by owner |
Network rates as of Q1 2026. Home rate: 10.8¢/kWh. "vs Home" uses network midpoint rate vs Idaho's residential average. See the full charging cost comparison →
Frequently Asked Questions
How much does it cost to charge an EV in Idaho?
Home charging in Idaho costs 10.8¢/kWh. For a typical EV (3.8 mi/kWh), that's 2.8¢ per mile. Driving 12,000 miles per year costs about $341 at home. Public DC fast charging runs about $1064 for the same miles.
Is Idaho a good state for EV ownership?
Idaho's electricity rate of 10.8¢/kWh is below the national average (16.1¢), which makes it one of the better states for EV charging costs. The lower your electricity rate, the greater the fuel savings advantage over gas.
How much does EV charging save vs gas in Idaho?
At $3.35/gallon (#{@state[:name]} average), a 28 MPG gas car costs $1436/year for 12,000 miles. An EV charged at home costs $341. Home charging saves $1095/year — $5,475 over 5 years, before accounting for maintenance savings.
Compare Other States
Data Sources
Residential electricity rate for Idaho: U.S. Energy Information Administration (EIA) Electric Power Monthly, 2025 residential averages. Gas price: AAA 2024 state average. EV efficiency: 3.8 mi/kWh (Tesla Model 3 / Chevy Equinox EV range). Public charging network rates: Q1 2026 network pricing. Last updated: March 2026.