Salt Lake City International Airport has installed 24 new electric vehicle charging ports — which are free to use and available on a first-come, first-served basis.

The ports are at four locations: economy parking lot (four dual port stations), parking garage level P1 (one dual port), parking garage level P2 (three dual ports) and the employee parking lot (four dual ports).

Also, the Touch n’ Go Convenience Store at the airport that opened in December has one charging station.

The charging stations have an instruction video, and phone support is available around the clock.

Bill Wyatt, executive director of the Salt Lake City Department of Airports, said that in 2020 when the first phase of a $3.6 billion project to rebuild the airport is completed, it will have 50 recharging stations in its new parking structure.