Charging a 2027 Rivian R1S Performance (22in) at home in New Hampshire
At New Hampshire's residential electricity rate of 26.83¢/kWh, a 2027 Rivian R1S Performance (22in) (rated 44.6 kWh per 100 miles by the EPA) costs $11.96 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 25.4% cheaper per mile than gasoline in New Hampshire — charging at home is cheaper than gas here.
Annual cost, at 15 thousands miles a year
New Hampshire owners putting 15,000 annual miles on a 2027 Rivian R1S Performance (22in) spend about $1,794 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $609 saved annually, at this mileage.
Filling up the 2027 Rivian R1S Performance (22in), in dollars
At New Hampshire's rate, fully covering this 2027 Rivian R1S Performance (22in)'s 371-mile EPA range costs about $44.37 (165.4 kWh) — the energy the EPA test actually used, not the battery's rated size.
Where this ranks
Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Performance (22in) in New Hampshire ranks 18,994 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance (22in) ranks 354 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
Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. 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.