All Hillary Schubach wanted to do is something good for the environment.

But after switching to driving a plug-in electric sedan, she quickly realized a new complication of apartment living: access to a charging station.

Schubach’s hardly alone. Even as it appears electric car sales are hitting a tipping point, those living in apartments and condominiums around the nation can find it difficult, expensive or outright impossible to find a way to plug in when they’re at home.