District of Columbia home charging cost for the 2026 Rivian R1S Dual Standard (20in)

A 2026 Rivian R1S Dual Standard (20in) draws 42.9 kWh per 100 miles per the EPA; at District of Columbia's 24.54¢/kWh residential rate that's $10.52 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is cheaper than gas here: 34.3% 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 2026 Rivian R1S Dual Standard (20in) costs roughly $1,578 a year to charge at home in District of Columbia, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $825 a year.

What one full charge costs

Covering the 2026 Rivian R1S Dual Standard (20in)'s EPA-rated 258-mile range takes about 110.6 kWh, which costs about $27.14 at District of Columbia's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 17,906 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Dual Standard (20in) alone ranks 312 of 400 models for efficiency; District of Columbia alone ranks 42 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.

Get quotes from local electricians for Level 2 charger installation in District of Columbia before deciding.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 24.54¢/kWh, District of Columbia sits in the middle of the national range — the guide to why charging cost varies by state shows where.