Audi Q4 e-tron in Tennessee
Home charging at 12.42¢/kWh (EIA). 34 kWh per 100 miles (EPA combined). Public DC fast: 39¢/kWh avg.
EV vs gas car — annual fuel cost
The Audi Q4 e-tron 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 | Audi Q4 e-tron (home) | 28-mpg gas | 40-mpg hybrid | EV savings vs gas |
|---|---|---|---|---|
| 6,000 mi | $253 | $632 | $443 | $379 |
| 10,000 mi | $422 | $1054 | $738 | $631 |
| 12,000 mi | $507 | $1264 | $885 | $758 |
| 15,000 mi | $633 | $1580 | $1106 | $947 |
| 20,000 mi | $845 | $2107 | $1475 | $1263 |
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 $1591 vs $507 at home — a $1084 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 Audi Q4 e-tron 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 | $4.22 | $6.31 |
| Missouri | 12.59¢ | $2.95 | $4.28 | $6.26 |
| Arkansas | 12.73¢ | $2.85 | $4.33 | $5.85 |
| Kentucky | 12.83¢ | $3.05 | $4.36 | $6.53 |
| North Carolina | 13.13¢ | $3.05 | $4.46 | $6.43 |
| Mississippi | 13.59¢ | $2.85 | $4.62 | $5.56 |
| Georgia | 14.30¢ | $3.05 | $4.86 | $6.03 |
| Virginia | 14.91¢ | $3.10 | $5.07 | $6.00 |
| Alabama | 14.97¢ | $2.90 | $5.09 | $5.27 |
Vehicle specs
- EPA combined efficiency: 34 kWh/100 miles
- EPA range: 263 miles
- Make / model: Audi Q4 e-tron
Other EVs in Tennessee
Common questions
- How much does it cost to charge a Audi Q4 e-tron at home in Tennessee?
- About $4.22 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: ~$758.
- 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 $13.26 at public chargers vs $4.22 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.