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

A 2026 GMC SIERRA EV Ext Range (11kW Charger) draws 49.5 kWh per 100 miles per the EPA; at Oklahoma's 13.37¢/kWh residential rate that's $6.62 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 58.6% 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 GMC SIERRA EV Ext Range (11kW Charger) costs roughly $994 a year to charge at home in Oklahoma, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,409 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 $27.16 at Oklahoma'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 11,974 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; Oklahoma alone ranks 5 of 51 states for electricity price.

Getting set up to charge a 2026 GMC SIERRA EV Ext Range (11kW Charger) 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.

Line up a few Oklahoma 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. Oklahoma is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.