California will have to build public charging stations at an unprecedented — and some experts say unrealistic — pace to meet the needs of the 7 million electric cars expected on its roads in less than seven years.

The sheer scale of the buildout has alarmed many experts and lawmakers, who fear that the state won’t be prepared as Californians purchase more electric cars.

A million public chargers are needed in California by the end of 2030, according to the state’s projections — almost 10 times more than the number available to drivers in December. To meet that target, 129,000 new stations — more than seven times the current pace — must be built every year for the next seven years. Then the pace would have to accelerate again to reach a target of 2.1 million chargers in 2035.

A robust network of public chargers — akin to the state’s more than 8,000 gas stations — is essential to ensure that drivers will have the confidence to purchase electric vehicles over the next several years.

“It is very unlikely that we will hit our goals, and to be completely frank, the EV goals are a noble aspiration, but unrealistic,” said Stanford professor Bruce Cain, who co-authored a policy briefing detailing California’s electric vehicle charging problems. “This is a wakeup call that we address potential institutional and policy obstacles more seriously before we commit blindly.”

Under California’s landmark electric car mandate, a pillar of Gov. Gavin Newsom’s climate change agenda, 68% of all new 2030 model cars sold in the state must be zero emissions, increasing to 100% for 2035, when 15 million electric cars are expected in California.

“We’re going to look really silly if we are telling people that they can only buy electric vehicles, and we don’t have the charging infrastructure to support that,” said Assembly member Jesse Gabriel, a Democrat from Encino who introduced a package of unsuccessful bills last year aimed at expanding access to car chargers.

“We are way behind where we need to be,” Gabriel told CalMatters.