Charging a 2027 Rivian R1T Premium Long Range (20in) at home in District of Columbia

A 2027 Rivian R1T Premium Long Range (20in) draws 42 kWh per 100 miles per the EPA; at District of Columbia's 24.54¢/kWh residential rate that's $10.3 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 35.7% cheaper per mile than gasoline in District of Columbia — charging at home is cheaper than gas here.

What a year of driving costs

District of Columbia owners putting 15,000 annual miles on a 2027 Rivian R1T Premium Long Range (20in) spend about $1,545 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $858 saved annually, at this mileage.

Cost of a full charge

At District of Columbia's rate, fully covering this 2027 Rivian R1T Premium Long Range (20in)'s 380-mile EPA range costs about $39.14 (159.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1T Premium Long Range (20in) in District of Columbia ranks 17,707 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Premium Long Range (20in) ranks 297 of 400 EV models for raw efficiency, and District of Columbia ranks 42 of 51 for cheapest residential electricity.

Before you install a home charger in District of Columbia

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. District of Columbia's 24.54¢/kWh rate ranks 42 of 51 states; the state rate guide lays out the full spread.