What it costs to charge a 2027 Rivian R1S Performance (22in) in Maryland

At Maryland's residential electricity rate of 21.27¢/kWh, a 2027 Rivian R1S Performance (22in) (rated 44.6 kWh per 100 miles by the EPA) costs $9.48 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. That works out to 40.8% cheaper per mile than gasoline in Maryland — charging at home is much cheaper than gas here.

2027 Rivian R1S Performance (22in): yearly cost in Maryland

Home charging this 2027 Rivian R1S Performance (22in) in Maryland runs about $1,422 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $981 saved annually, at this mileage.

What one full charge costs

$35.17 — that's what Maryland's 21.27¢/kWh rate puts on the 165.4 kWh a 2027 Rivian R1S Performance (22in) needs for its full 371-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Performance (22in) in Maryland ranks 16,945 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance (22in) ranks 354 of 400 EV models for raw efficiency, and Maryland ranks 39 of 51 for cheapest residential electricity.

Before you install a home charger in Maryland

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Line up a few Maryland electrician quotes for Level 2 install before you commit either way.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 21.27¢/kWh, Maryland sits in the middle of the national range — the guide to why charging cost varies by state shows where.