CRRC Dalian, a China Railway Rolling Stock Corp subsidiary, officially launched a 1,000-kilowatt new energy hybrid locomotive on Wednesday in Dalian, Liaoning province. This locomotive utilizes a large-capacity lithium-ion power battery as the primary power source, with a diesel engine serving as backup during charging. The diesel engine unit operates only at optimal economic speeds through the hybrid power control system, meeting traction requirements while achieving energy efficiency, emission reduction and noise reduction goals. (....)