Mercedes EQB 300 in South Carolina
Home charging at 14.74¢/kWh (EIA). 36 kWh per 100 miles (EPA combined). Public DC fast: 41¢/kWh avg.
EV vs gas car — annual fuel cost
The Mercedes EQB 300 at home rates compared against a typical 28-mpg gas car and a 40-mpg hybrid at the South Carolina fuel price ($2.95/gal).
| Annual mileage | Mercedes EQB 300 (home) | 28-mpg gas | 40-mpg hybrid | EV savings vs gas |
|---|---|---|---|---|
| 6,000 mi | $318 | $632 | $443 | $314 |
| 10,000 mi | $531 | $1054 | $738 | $523 |
| 12,000 mi | $637 | $1264 | $885 | $628 |
| 15,000 mi | $796 | $1580 | $1106 | $784 |
| 20,000 mi | $1061 | $2107 | $1475 | $1046 |
Home vs public DC fast charging
Home charging is the default cost optimization. Public DC fast charging in South Carolina runs about 2.8× the home rate. For 12,000 miles/yr entirely on DC fast, annual fuel cost would be $1771 vs $637 at home — a $1134 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 South Carolina
South Carolina 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 Mercedes EQB 300 cost compares in South Carolina's contiguous neighbors. Relevant for cross-border driving and relocation decisions.
| State | Electricity | Gas | EV / 100mi | Saves vs gas |
|---|---|---|---|---|
| South Carolina (current) | 14.74¢ | $2.95 | $5.31 | $5.23 |
| North Carolina | 13.13¢ | $3.05 | $4.73 | $6.17 |
| Georgia | 14.30¢ | $3.05 | $5.15 | $5.74 |
Vehicle specs
- EPA combined efficiency: 36 kWh/100 miles
- EPA range: 245 miles
- Make / model: Mercedes-Benz EQB
Other EVs in South Carolina
Common questions
- How much does it cost to charge a Mercedes EQB 300 at home in South Carolina?
- About $5.31 per 100 miles at the South Carolina residential electricity rate of 14.74¢/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: ~$628.
- Home charging vs public DC fast charging — what's the difference in South Carolina?
- Public DC fast charging in South Carolina averages ~41¢/kWh — that's 2.8× home rates. A 100-mile session costs roughly $14.76 at public chargers vs $5.31 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 South Carolina?
- South Carolina 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 South Carolina?
- 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.