A hybrid gas-electric bus costs 60% more, but is 30% more efficient for the hybrid model and 65% more fuel efficient for plug-in models, says a Navistar executive. Navistar is the first U.S. maker to bring out a hybrid bus model. Experts say buses are ideally suited for electric versions because of short routes within city limits and predicatable routes. School buses also spend a lot of time in depots where they can be charged easily. Trans Tech Bus is planning to start production of a electric school bus in partnership with Smith Electric Vehicles. Trans Tech's president says the new electric school bus will be priced so that districts could recover the added cost- a $30,000 premium at this time- in fuel savings of 3-5 years. The savings for diesel are about $60 a day for a school district near Fresno with poor air quality. Recharging the battery costs about $17.