Charging a 2027 Rivian R1S Premium Long Range (20in) at home in North Dakota

A 2027 Rivian R1S Premium Long Range (20in) draws 42 kWh per 100 miles per the EPA; at North Dakota's 12.19¢/kWh residential rate that's $5.12 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 68.1% cheaper per mile than gasoline in North Dakota — charging at home costs a fraction of what gas would here.

What a year of driving costs

North Dakota owners putting 15,000 annual miles on a 2027 Rivian R1S Premium Long Range (20in) spend about $767 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,635 saved annually, at this mileage.

Filling up the 2027 Rivian R1S Premium Long Range (20in), in dollars

At North Dakota's rate, fully covering this 2027 Rivian R1S Premium Long Range (20in)'s 380-mile EPA range costs about $19.44 (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 R1S Premium Long Range (20in) in North Dakota ranks 5,038 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium Long Range (20in) ranks 296 of 400 EV models for raw efficiency, and North Dakota ranks 1 of 51 for cheapest residential electricity.

Before you install a home charger in North Dakota

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 North Dakota 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. North Dakota is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.