Rivian R1S (Dual Motor) in Delaware
Home charging at 14.78¢/kWh (EIA). 50 kWh per 100 miles (EPA combined). Public DC fast: 42¢/kWh avg.
EV vs gas car — annual fuel cost
The Rivian R1S (Dual Motor) at home rates compared against a typical 28-mpg gas car and a 40-mpg hybrid at the Delaware fuel price ($3.15/gal).
| Annual mileage | Rivian R1S (Dual Motor) (home) | 28-mpg gas | 40-mpg hybrid | EV savings vs gas |
|---|---|---|---|---|
| 6,000 mi | $443 | $675 | $473 | $232 |
| 10,000 mi | $739 | $1125 | $788 | $386 |
| 12,000 mi | $887 | $1350 | $945 | $463 |
| 15,000 mi | $1109 | $1688 | $1181 | $579 |
| 20,000 mi | $1478 | $2250 | $1575 | $772 |
Home vs public DC fast charging
Home charging is the default cost optimization. Public DC fast charging in Delaware runs about 2.8× the home rate. For 12,000 miles/yr entirely on DC fast, annual fuel cost would be $2520 vs $887 at home — a $1633 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 Delaware
- DE Clean Vehicle Rebate$2,500rebateBEV with MSRP under $40,000 (LMI: under $60,000)
Same vehicle in neighboring states
How Rivian R1S (Dual Motor) cost compares in Delaware's contiguous neighbors. Relevant for cross-border driving and relocation decisions.
| State | Electricity | Gas | EV / 100mi | Saves vs gas |
|---|---|---|---|---|
| Delaware (current) | 14.78¢ | $3.15 | $7.39 | $3.86 |
| Maryland | 18.05¢ | $3.30 | $9.03 | $2.76 |
| Pennsylvania | 18.20¢ | $3.40 | $9.10 | $3.04 |
| New Jersey | 19.13¢ | $3.15 | $9.56 | $1.69 |
Vehicle specs
- EPA combined efficiency: 50 kWh/100 miles
- EPA range: 321 miles
- Make / model: Rivian R1S
Other EVs in Delaware
Common questions
- How much does it cost to charge a Rivian R1S (Dual Motor) at home in Delaware?
- About $7.39 per 100 miles at the Delaware residential electricity rate of 14.78¢/kWh (EIA). For comparison, a 28-mpg gas car at local gas prices costs $11.25 per 100 miles. Annual savings at 12,000 miles: ~$463.
- Home charging vs public DC fast charging — what's the difference in Delaware?
- Public DC fast charging in Delaware averages ~42¢/kWh — that's 2.8× home rates. A 100-mile session costs roughly $21.00 at public chargers vs $7.39 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 Delaware?
- Yes. Total state incentives can reach $2,500 on top of the federal $7,500 Section 30D tax credit. Eligibility depends on vehicle MSRP and household income — check the official program page for current limits.
- Does winter weather affect charging cost in Delaware?
- 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.