Over half of all new cars sold in the U.S. by 2030 are expected to be electric vehicles. That could put a major strain on our nation’s electric grid, an aging system built for a world that runs on fossil fuels.

Domestic electricity demand in 2022 is expected to increase up to 18% by 2030 and 38% by 2035, according to an analysis by the Rapid Energy Policy Evaluation and Analysis Toolkit, or REPEAT, an energy policy project out of Princeton University. That’s a big change over the roughly 5% increase we saw in the past decade…

While many parts of the economy are moving away from fossil fuels toward electrification — think household appliances such as stoves, and space heating for homes and offices — the transportation sector is driving the increase. Light-duty vehicles, a segment that excludes large trucks and aviation, are projected to use up to 3,360% more electricity by 2035 than they do today, according to Princeton’s data.