The MBTA reports it plans to pilot electricity-powered buses on the Silver Line starting later this winter.
The T is buying five zero-emission Xcelsior Charge buses from New Flyer of America, through a grant from the Federal Transportation Administration that includes money for bus charging stations.
The Silver Line, of course, already has buses that can run on electricity, but only in the relatively short tunnel from South Station to South Boston.
The buses can carry 120 passengers.
The T already runs diesel-hybrid and CNG buses from New Flyer.