… by hydrogen! Ride one of our 33 hydrogen fuel cell buses every trip. Plus, we have 19 more HFC buses on the way! Foothill Transit has been committed to clean and sustainable transportation since 2010, and we just got even greener. By using the … a hydrogen fuel cell, hydrogen and oxygen are combined to generate electricity, heat, and water. When used in a Foothill Transit bus, this reaction provides the bus with battery power to move while emitting only water vapor! No carbon dioxide or … is stored at the new Pomona Hydrogen Fueling Station in a 25,000-gallon tank – the largest hydrogen fuel tank used for transit in North America. Buses can be refueled in 7-10 minutes and can travel up to 300 miles on a single refueling! …