The SBETI is closely associated with the Santa Barbara Metropolitan Transit District , the operator of the largest electric bus fleet in North America and a pioneering electric bus developer. The SBETI has focused its efforts in practical research and development that have real application in the fleet environment.
The Santa Barbara Metropolitan Transit District (MTD) introduced battery-electric buses into regular service in January of 1991. This novel application of electric propulsion ensured quiet, exhaust-free, odorless operation, and proved to be an immediate success with riders, as evidenced by a five-fold increase in ridership during the first year of all-electric operation. During the first five years and four months of operation, the MTD has logged 800,000 kilometers and over 90,000 hours of service on its battery-electric fleet, and has carried nearly four million passengers during the course of more than 11,000 eight-hour driving cycles.
The MTD’s battery-electric fleet is comprised of eighteen buses. Vehicles range from the twenty-two foot open-air trolley-style shuttle vehicles to a thirty-five-foot heavy-duty transit bus that incorporates several advanced material and drivetrain features. The MTD is presently transitioning from low speed, modest range (130 km) electric buses to those of higher speed and longer range (190 km) performance.
The operation of electric buses in regular transit service (as opposed to short-term experimental demonstrations) has produced a wealth of useful data. Information presented includes driver energy management, vehicle performance and applicability, battery life, charger performance, maintenance and operational costs, and air quality benefits