Charging a 2026 Rivian R1S Quad Max (22in UHP) at home in Maryland

In Maryland, home electricity runs 21.27¢/kWh — put a 2026 Rivian R1S Quad Max (22in UHP)'s EPA-rated 47.3 kWh/100mi against that and 100 miles costs $10.07, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 37.1% cheaper per mile than gasoline in Maryland — charging at home is cheaper than gas here.

Annual cost, at 15 thousands miles a year

Maryland owners putting 15,000 annual miles on a 2026 Rivian R1S Quad Max (22in UHP) spend about $1,511 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $892 saved annually, at this mileage.

What one full charge costs

At Maryland's rate, fully covering this 2026 Rivian R1S Quad Max (22in UHP)'s 338-mile EPA range costs about $34.04 (160 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1S Quad Max (22in UHP) in Maryland, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Quad Max (22in UHP) in Maryland ranks 17,496 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Quad Max (22in UHP) ranks 373 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.

Get quotes from local electricians for Level 2 charger installation in Maryland before deciding.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Maryland's 21.27¢/kWh compares? The guide to charging cost by state ranks every state side by side.