BMW iX xDrive50 in Washington
Home charging at 11.86¢/kWh (EIA). 37 kWh per 100 miles (EPA combined). Public DC fast: 39¢/kWh avg.
EV vs gas car — annual fuel cost
The BMW iX xDrive50 at home rates compared against a typical 28-mpg gas car and a 40-mpg hybrid at the Washington fuel price ($4.10/gal).
| Annual mileage | BMW iX xDrive50 (home) | 28-mpg gas | 40-mpg hybrid | EV savings vs gas |
|---|---|---|---|---|
| 6,000 mi | $263 | $879 | $615 | $615 |
| 10,000 mi | $439 | $1464 | $1025 | $1025 |
| 12,000 mi | $527 | $1757 | $1230 | $1231 |
| 15,000 mi | $658 | $2196 | $1538 | $1538 |
| 20,000 mi | $878 | $2929 | $2050 | $2051 |
Home vs public DC fast charging
Home charging is the default cost optimization. Public DC fast charging in Washington runs about 3.3× the home rate. For 12,000 miles/yr entirely on DC fast, annual fuel cost would be $1732 vs $527 at home — a $1205 penalty. Apartment dwellers and road-trippers should price this in; daily commuters with home Level 2 can usually ignore public chargers.
DC fast rate is a network average (Electrify America + EVgo + Tesla Supercharger + ChargePoint). Real prices vary by location, time of day, and membership tier.
EV incentives in Washington
- tax creditBEVs under $45,000 base price exempt from 6.5%+ sales tax (~$3,000 savings)
Same vehicle in neighboring states
How BMW iX xDrive50 cost compares in Washington's contiguous neighbors. Relevant for cross-border driving and relocation decisions.
| State | Electricity | Gas | EV / 100mi | Saves vs gas |
|---|---|---|---|---|
| Washington (current) | 11.86¢ | $4.10 | $4.39 | $10.25 |
| Idaho | 11.59¢ | $3.45 | $4.29 | $8.03 |
| Oregon | 13.92¢ | $3.80 | $5.15 | $8.42 |
Vehicle specs
- EPA combined efficiency: 37 kWh/100 miles
- EPA range: 305 miles
- Make / model: BMW iX
Other EVs in Washington
Common questions
- How much does it cost to charge a BMW iX xDrive50 at home in Washington?
- About $4.39 per 100 miles at the Washington residential electricity rate of 11.86¢/kWh (EIA). For comparison, a 28-mpg gas car at local gas prices costs $14.64 per 100 miles. Annual savings at 12,000 miles: ~$1231.
- Home charging vs public DC fast charging — what's the difference in Washington?
- Public DC fast charging in Washington averages ~39¢/kWh — that's 3.3× home rates. A 100-mile session costs roughly $14.43 at public chargers vs $4.39 at home. For daily commuting, home charging pays off. Public fast charging is for road trips and apartment dwellers without home charging access.
- Are there EV incentives in Washington?
- Washington does not currently run a state-level EV purchase rebate. The federal Section 30D tax credit ($7,500) still applies for qualifying vehicles, and your utility may run separate charger-installation rebates.
- Does winter weather affect charging cost in Washington?
- Yes — cold weather can reduce EV efficiency by 15-30% (battery + heater draw). The numbers above use EPA combined ratings; budget +20% for sustained sub-freezing temps. Winter range drop is most pronounced for northern states.
Full data sources and formulas: /sources.