Washington home charging cost for the 2026 GMC SIERRA EV Ext Range (11kW Charger)

At Washington's residential electricity rate of 14.35¢/kWh, a 2026 GMC SIERRA EV Ext Range (11kW Charger) (rated 49.5 kWh per 100 miles by the EPA) costs $7.11 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: 55.6% less than gas per mile, here specifically.

2026 GMC SIERRA EV Ext Range (11kW Charger): yearly cost in Washington

At fueleconomy.gov's default of 15,000 annual miles, the 2026 GMC SIERRA EV Ext Range (11kW Charger) costs roughly $1,067 a year to charge at home in Washington, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,336 a year.

Cost of a full charge

Covering the 2026 GMC SIERRA EV Ext Range (11kW Charger)'s EPA-rated 410-mile range takes about 203.2 kWh, which costs about $29.15 at Washington'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 13,328 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The GMC SIERRA EV Ext Range (11kW Charger) alone ranks 383 of 400 models for efficiency; Washington alone ranks 15 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 Washington before deciding.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 GMC SIERRA EV Ext Range (11kW Charger)'s cost in Washington. Curious how Washington's 14.35¢/kWh compares? The guide to charging cost by state ranks every state side by side.