'a battery electric freight [Heavy Haul] locomotive' - Wabtec’s FLXdrive design.
'CN [Canadian National Railway] Advances Sustainability Efforts With Wabtec's Battery-Electric Locomotive'.
'Wabtec’s FLXdrive battery-electric freight locomotive, the first 100 percent battery heavy-haul locomotive for the region in support of CN’s sustainability goals.'
(Wabtec Corporation, Pittsburgh USA) >

https://www.wabteccorp.com/newsroom/press-releases/cn-advances-sustainability-efforts-with-wabtecs-battery-electric-locomotive