Duke Energy has made a commitment convert 100% of its light-duty fleet to electric vehicles (EVs) by 2030.
It also plans to electrify 50% of its combined fleet of medium-duty, heavy-duty and off-road vehicles over the next 10 years.
That includes converting nearly 4,000 light-duty vehicles and around 6,000 of the latter vehicles to zero carbon alternatives.
The move is expected to reduce 60,000 metric tons of carbon emissions a year and 10 million gallons of fuel usage annually.
The company has installed so far 500 charging stations and has applied for pilot programmes in the Carolinas and Ohio.
It offers a rebate of $3,000 (£2,308) to employees who purchase an EV and $1,500 (£1,154) to those who choose to lease one.
Lynn Good, Chair, President and CEO said: “We’ve set a bold vision to achieve net zero carbon emissions from electric generation by 2050. But beyond how we generate power, we’re looking at other ways to transform our business to reduce emissions,.
“Electric vehicles are an important part of that strategy. With our new pledge, we’re committed to transitioning our fleet and spurring adoption within our communities.”