New Hampshire home charging cost for the 2027 Rivian R1S Premium (20in)
In New Hampshire, home electricity runs 26.83¢/kWh — put a 2027 Rivian R1S Premium (20in)'s EPA-rated 42.9 kWh/100mi against that and 100 miles costs $11.5, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is cheaper than gas here: 28.2% less than gas per mile, here specifically.
Annual cost, at 15 thousands miles a year
At fueleconomy.gov's default of 15,000 annual miles, the 2027 Rivian R1S Premium (20in) costs roughly $1,725 a year to charge at home in New Hampshire, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $678 a year.
Cost of a full charge
Covering the 2027 Rivian R1S Premium (20in)'s EPA-rated 300-mile range takes about 128.6 kWh, which costs about $34.51 at New Hampshire's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.
How this compares nationally
This combination ranks 18,665 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Premium (20in) alone ranks 314 of 400 models for efficiency; New Hampshire alone ranks 43 of 51 states for electricity price.
Next step: home charger installation
The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.
Line up a few New Hampshire electrician quotes for Level 2 install before you commit either way.
Where these figures come from
Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how New Hampshire's 26.83¢/kWh compares? The guide to charging cost by state ranks every state side by side.