How much does it cost to charge a Subaru Solterra at home?
Most EV drivers pay $10 to $20 to fully charge at home in the 84101 area. This fills the battery for 250-300 miles of range. Rocky Mountain Power sets rates at about $0.12 per kWh off-peak. A full charge takes 70-80 kWh.
Key Costs Breakdown
Here's what you need to know:
| Charge Type | kWh Used | Cost at $0.12/kWh | Miles Added |
|---|---|---|---|
| Full charge | 75 kWh | $9 | 280 miles |
| Daily top-up (50 miles) | 15 kWh | $1.80 | 50 miles |
| Weekly full | 75 kWh | $9-$18 | 280 miles |
Costs come from EIA 2026 Utah residential rates and typical EV specs (Source: EIA Utah Energy Profile, 2026). Off-peak hours run 10pm-6am. Time-of-use plans cut bills by 30%.
Factors That Affect Your Bill
Electricity rates change by time and plan. Rocky Mountain Power offers TOU rates: $0.08/kWh nights, $0.20/kWh daytime. Charge at night to save. Add 20% for efficiency losses.
Annual costs stay low. Drive 12,000 miles yearly? Spend $200-$400 on charging. Gas cars in the same area cost $1,500+ in fuel (Source: AAA Driving Costs Study, 2026).
"EV home charging saves drivers $1,200 yearly over gas," says the Sidekick Research Team, based on analysis of 1,200 verified Utah owners.
Tips to Cut Charging Costs
- Switch to TOU plan. Save 25-40%.
- Install a Level 2 charger. Charges 5x faster than 120V.
- Precondition battery while plugged in.
- Track usage with apps like ChargePoint.
Sidekick tracks your fuel costs and finds savings. Enter your zip code for a custom report.
Compare to Gas
Gas sedans average $2,000 yearly fuel in Utah. EVs drop that to $300. Ownership totals $11,577 yearly for new vehicles, with EVs at 71 cents per mile (Source: AAA 2026 Driving Costs, N=15,000 miles).
| Fuel Type | Annual Cost (12k miles) | Cost per Mile |
|---|---|---|
| Gas | $1,800 | $0.15 |
| EV Home Charge | $350 | $0.03 |
Data as of April 2026. Rates fluctuate monthly.