Washington home charging cost for the 2026 Cadillac OPTIQ RWD (11 kW Charger)

In Washington, home electricity runs 14.35¢/kWh — put a 2026 Cadillac OPTIQ RWD (11 kW Charger)'s EPA-rated 32.1 kWh/100mi against that and 100 miles costs $4.6, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home costs a fraction of what gas would here: 71.3% 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 Cadillac OPTIQ RWD (11 kW Charger) costs roughly $691 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 $1,712 a year.

Filling up the 2026 Cadillac OPTIQ RWD (11 kW Charger), in dollars

Covering the 2026 Cadillac OPTIQ RWD (11 kW Charger)'s EPA-rated 317-mile range takes about 101.7 kWh, which costs about $14.59 at Washington's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Cadillac OPTIQ RWD (11 kW Charger) in Washington, ranked

This combination ranks 2,806 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Cadillac OPTIQ RWD (11 kW Charger) alone ranks 90 of 400 models for efficiency; Washington alone ranks 15 of 51 states for electricity price.

Before you install a home charger in Washington

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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Washington's 14.35¢/kWh rate ranks 15 of 51 states; the state rate guide lays out the full spread.