Taken from KSL.com on September 2nd, 2018: see link here

Park City Transit has been awarded a $2.29 million grant from the Federal Transit Administration's Low-or-No Emission Bus Program, city and county officials said in a news release Thursday. The system, which covers Park City and other parts of Summit County, also received the grant in 2016 and 2017.

Each year, the grant has been awarded to support replacing older diesel buses with buses that are 100 percent electric. Six new electric buses from 2016 were used to create the Electric Xpress, a 6.9-mile all-electric express route connecting the Kimball Junction Transit Center, just off the I-80 exit, to Park City's Old Town Transit Center.

In 2018, 315,877 passengers rode the Electric Xpress from the start of the year through July. That contributed to Park City Transit's ridership of 1,645,896 from January through July 2018. The total does not include rides on Utah Transit Authority's route between Park City and Salt Lake City.

So far there are 37 diesel and six electric buses in the transit system's fleet.