Charging your EV at night is about to become more expensive

Electric vehicle charging stations in New York City are often inside paid parking lots. | Photo by Amelia Holowaty Krales / The Verge

One of the perks of electric vehicle ownership is charging your car overnight while parked in your driveway at home. Electricity demand is usually low, so rates are fairly cheap, making it both convenient and affordable for many people. But that’s about to change as more people buy EVs and the demand for overnight charging begins to rise, according to a new study published today.

The study, which was conducted by a team at Stanford University and published in Nature Energy, found that increasing EV ownership in the western US could lead to peak net electricity demand increases by up to 25 percent by 2035, the year California has said it would ban the sale of gas-powered cars and trucks.

funneling billions of dollars into projects across the country to install more chargers, including DC fast chargers that can charge an EV in much less time than typical Level 2 chargers. Much less focus has been put on proper grid management, which will become more of an issue as EV sales continue to go up.

Demand charges from utility companies, for example, tend to dominate charging companies’ operating costs, further complicating the business case for building more charging stations. The total cost of electricity is higher based on the level of charging they provide. These calculations need to be rethought if the government wants to incentivize the EV charging industry.

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