Volvo EX90 in Tennessee
Home charging at 12.42¢/kWh (EIA). 40 kWh per 100 miles (EPA combined). Public DC fast: 39¢/kWh avg.
EV vs gas car — annual fuel cost
The Volvo EX90 at home rates compared against a typical 28-mpg gas car and a 40-mpg hybrid at the Tennessee fuel price ($2.95/gal).
| Annual mileage | Volvo EX90 (home) | 28-mpg gas | 40-mpg hybrid | EV savings vs gas |
|---|---|---|---|---|
| 6,000 mi | $298 | $632 | $443 | $334 |
| 10,000 mi | $497 | $1054 | $738 | $557 |
| 12,000 mi | $596 | $1264 | $885 | $668 |
| 15,000 mi | $745 | $1580 | $1106 | $835 |
| 20,000 mi | $994 | $2107 | $1475 | $1114 |
Home vs public DC fast charging
Home charging is the default cost optimization. Public DC fast charging in Tennessee runs about 3.1× the home rate. For 12,000 miles/yr entirely on DC fast, annual fuel cost would be $1872 vs $596 at home — a $1276 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 Tennessee
Tennessee does not currently run a state-level EV purchase rebate. Federal Section 30D credit of $7,500 still applies for qualifying vehicles (US-assembled with sourced battery components, MSRP cap, household income cap). Check the EV tax credit eligibility list for your vehicle. Some utilities offer charger installation rebates — check with your local utility.
Same vehicle in neighboring states
How Volvo EX90 cost compares in Tennessee's contiguous neighbors. Relevant for cross-border driving and relocation decisions.
| State | Electricity | Gas | EV / 100mi | Saves vs gas |
|---|---|---|---|---|
| Tennessee (current) | 12.42¢ | $2.95 | $4.97 | $5.57 |
| Missouri | 12.59¢ | $2.95 | $5.04 | $5.50 |
| Arkansas | 12.73¢ | $2.85 | $5.09 | $5.09 |
| Kentucky | 12.83¢ | $3.05 | $5.13 | $5.76 |
| North Carolina | 13.13¢ | $3.05 | $5.25 | $5.64 |
| Mississippi | 13.59¢ | $2.85 | $5.44 | $4.74 |
| Georgia | 14.30¢ | $3.05 | $5.72 | $5.17 |
| Virginia | 14.91¢ | $3.10 | $5.96 | $5.11 |
| Alabama | 14.97¢ | $2.90 | $5.99 | $4.37 |
Vehicle specs
- EPA combined efficiency: 40 kWh/100 miles
- EPA range: 310 miles
- Make / model: Volvo EX90
Other EVs in Tennessee
Common questions
- How much does it cost to charge a Volvo EX90 at home in Tennessee?
- About $4.97 per 100 miles at the Tennessee residential electricity rate of 12.42¢/kWh (EIA). For comparison, a 28-mpg gas car at local gas prices costs $10.54 per 100 miles. Annual savings at 12,000 miles: ~$668.
- Home charging vs public DC fast charging — what's the difference in Tennessee?
- Public DC fast charging in Tennessee averages ~39¢/kWh — that's 3.1× home rates. A 100-mile session costs roughly $15.60 at public chargers vs $4.97 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 Tennessee?
- Tennessee 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 Tennessee?
- 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.