Charging a 2026 Rivian R1S Tri Max (22in) at home in New Hampshire

A 2026 Rivian R1S Tri Max (22in) draws 44.6 kWh per 100 miles per the EPA; at New Hampshire's 26.83¢/kWh residential rate that's $11.96 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. 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 2026 Rivian R1S Tri Max (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.

Cost of a full charge

At New Hampshire's rate, fully covering this 2026 Rivian R1S Tri Max (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.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Tri Max (22in) in New Hampshire ranks 18,996 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Tri Max (22in) ranks 356 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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. 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.