Oklahoma home charging cost for the 2026 GMC SIERRA EV Ext Range (19kW Charger)

A 2026 GMC SIERRA EV Ext Range (19kW Charger) draws 52.4 kWh per 100 miles per the EPA; at Oklahoma's 13.37¢/kWh residential rate that's $7.01 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: 56.3% 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 GMC SIERRA EV Ext Range (19kW Charger) costs roughly $1,051 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 $1,352 a year.

Cost of a full charge

Covering the 2026 GMC SIERRA EV Ext Range (19kW Charger)'s EPA-rated 385-mile range takes about 201.8 kWh, which costs about $26.98 at Oklahoma'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 13,076 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The GMC SIERRA EV Ext Range (19kW Charger) alone ranks 397 of 400 models for efficiency; Oklahoma alone ranks 5 of 51 states for electricity price.

Before you install a home charger in Oklahoma

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

See the methodology guide for exactly which EIA and EPA figures feed 2026 GMC SIERRA EV Ext Range (19kW Charger)'s cost in Oklahoma. 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.