Gas vs. electric driving costs · adjust vehicle and price period below
Why is it like this in Wyoming?
Wyoming has some of the cheapest electricity in the Mountain West — about 11.6¢/kWh — driven by coal-fired generation, giving PHEV drivers a solid per-mile cost advantage over gasoline. The practical challenge is infrastructure: Wyoming has roughly 3,100 registered EVs and only 332 public charging ports, one of the worst ratios in the nation. A 2026 legislative effort to eliminate the state's electricity fuel tax on slow chargers should remove one barrier to public charging expansion; home charging in Wyoming, where it's available, is among the best-value propositions in the country.
In the news · Wyoming
Wyoming's 2026 legislature included a bipartisan bill to lift the state's electricity fuel tax from slow EV chargers — a policy that had caused hotels and libraries to shut down free charging amenities, illustrating the regulatory barriers to EV adoption in a state with otherwise cheap electricity (~12¢/kWh).
NEVI funding — frozen early in 2025 and then restored — will allow Wyoming to expand EV charging beyond its interstate corridors; Wyoming has ~3,100 EVs and only 332 public charging ports, one of the worst ratios in the nation.
Wyoming's NEVI buildout strategy for 2025 focuses on closing charging gaps in rural corridors — critical context for PHEV drivers in Wyoming, where the low electricity rate (~12¢/kWh) makes electric miles cheap but sparse public infrastructure limits their practicality.
Curated coverage of Wyoming's EV/PHEV cost, policy, and infrastructure story. External links open in a new tab.
West region comparison
| State | Electric ¢/mi | Gas ¢/mi | Cheaper | Annual diff |
|---|---|---|---|---|
| Washington | 4.2¢ | 10.0¢ | ⚡ Electric | $701/yr |
| Nevada | 4.2¢ | 8.8¢ | ⚡ Electric | $549/yr |
| Oregon | 4.4¢ | 8.8¢ | ⚡ Electric | $519/yr |
| Idaho | 3.7¢ | 7.3¢ | ⚡ Electric | $432/yr |
| Montana | 3.9¢ | 7.2¢ | ⚡ Electric | $398/yr |
| Utah | 3.9¢ | 6.8¢ | ⚡ Electric | $342/yr |
| Wyoming | 3.9¢ | 6.5¢ | ⚡ Electric | $307/yr |
| California | 9.2¢ | 11.1¢ | ⚡ Electric | $228/yr |
| Colorado | 5.0¢ | 6.6¢ | ⚡ Electric | $196/yr |
| Alaska | 7.7¢ | 9.1¢ | ⚡ Electric | $170/yr |
| Hawaii | 12.1¢ | 11.6¢ | ⛽ Gas | $59/yr |