Charging a 2027 Rivian R1S Premium Long Range (20in) at home in New Hampshire

At New Hampshire's residential electricity rate of 26.83¢/kWh, a 2027 Rivian R1S Premium Long Range (20in) (rated 42 kWh per 100 miles by the EPA) costs $11.26 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 29.7% cheaper per mile than gasoline in New Hampshire — charging at home is cheaper than gas here.

What a year of driving costs

New Hampshire owners putting 15,000 annual miles on a 2027 Rivian R1S Premium Long Range (20in) spend about $1,689 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $714 saved annually, at this mileage.

Cost of a full charge

At New Hampshire's rate, fully covering this 2027 Rivian R1S Premium Long Range (20in)'s 380-mile EPA range costs about $42.79 (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 New Hampshire ranks 18,493 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 New Hampshire ranks 43 of 51 for cheapest residential electricity.

Before you install a home charger in New Hampshire

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 New Hampshire electrician to quote the install before this math becomes a real decision.

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1S Premium Long Range (20in)'s cost in New Hampshire. At 26.83¢/kWh, New Hampshire sits in the middle of the national range — the guide to why charging cost varies by state shows where.