  Enabling widespread electric vehicle (EV) adoption requires substantial
build-out of charging infrastructure in the coming decade. We formulate the
charging infrastructure needs as a scaling analysis problem and use it to
estimate the EV infrastructure needs of the US at a county-level resolution.
Surprisingly, we find that the current EV infrastructure deployment scales
super-linearly with population, deviating from the sub-linear scaling of
gasoline stations and other infrastructure. We discuss how this demonstrates
the infancy of EV station abundance compared to other mature transportation
infrastructures. By considering the power delivery of existing gasoline
stations, and appropriate EV efficiencies, we estimate the EV infrastructure
gap at the county level, providing a road map for future EV infrastructure
expansion. Our reliance on scaling analysis allows us to make a unique forecast
in this domain.
