According to the study, published in Energy Policy, widespread adoption of electric vehicles, or EVs, by 2035 would cut energy bills for U.S. households by more than 6% — including more than 4% at the gas pump. It also would drive oil imports down by 7% and increase exports by nearly 4%, the researchers say.

However, those benefits are imperiled by the repeal of national electric vehicle incentives and the recent decision by the federal government to roll back EV-boosting rules meant to increase vehicle fuel efficiency and reduce pollution, according to the study’s authors, Ph.D. candidate Niraj K. Palsule; Marilyn A. Brown, Regents’ Professor and Brook Byers Professor of Sustainable Systems; and former graduate student Suprita Chakravarthy. Their study was conducted prior to the federal decisions.

“Proponents of eliminating fuel efficiency standards and other EV-boosting policies often frame those regulatory approaches as consumer-unfriendly, but our analysis shows that such policies have many long-term benefits, both for consumers and for the nation’s energy security,” Palsule said.

For more on the study, read the full story.