Oregon home charging cost for the 2026 Rivian R1T Tri Max (22in)

At Oregon's residential electricity rate of 15.31¢/kWh, a 2026 Rivian R1T Tri Max (22in) (rated 44.6 kWh per 100 miles by the EPA) costs $6.82 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. Charging at home is much cheaper than gas here: 57.4% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1T Tri Max (22in) costs roughly $1,024 a year to charge at home in Oregon, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,379 a year.

Cost of a full charge

Covering the 2026 Rivian R1T Tri Max (22in)'s EPA-rated 371-mile range takes about 165.4 kWh, which costs about $25.32 at Oregon'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 12,563 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Tri Max (22in) alone ranks 357 of 400 models for efficiency; Oregon alone ranks 21 of 51 states for electricity price.

Getting set up to charge a 2026 Rivian R1T Tri Max (22in) at home

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.

Ask a licensed Oregon electrician to quote the install before this math becomes a real decision.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Oregon's 15.31¢/kWh rate ranks 21 of 51 states; the state rate guide lays out the full spread.