Charging a 2027 Rivian R1S Quad (22in) at home in District of Columbia
At District of Columbia's residential electricity rate of 24.54¢/kWh, a 2027 Rivian R1S Quad (22in) (rated 44.4 kWh per 100 miles by the EPA) costs $10.89 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 32% cheaper per mile than gasoline in District of Columbia — charging at home is cheaper than gas here.
Annual cost, at 15 thousands miles a year
District of Columbia owners putting 15,000 annual miles on a 2027 Rivian R1S Quad (22in) spend about $1,633 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $770 saved annually, at this mileage.
Cost of a full charge
At District of Columbia's rate, fully covering this 2027 Rivian R1S Quad (22in)'s 374-mile EPA range costs about $40.72 (166 kWh) — the energy the EPA test actually used, not the battery's rated size.
2027 Rivian R1S Quad (22in) in District of Columbia, ranked
Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Quad (22in) in District of Columbia ranks 18,230 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Quad (22in) ranks 348 of 400 EV models for raw efficiency, and District of Columbia ranks 42 of 51 for cheapest residential electricity.
Getting set up to charge a 2027 Rivian R1S Quad (22in) at home
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.
Ask a licensed District of Columbia electrician to quote the install before this math becomes a real decision.
More on how this number was built
The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how District of Columbia's 24.54¢/kWh compares? The guide to charging cost by state ranks every state side by side.