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Union Pacific test of battery-diesel switcher advances to use in yard service (with video)

Summary by trains.com
Union Pacific’s first set of mother-slug hybrid switchers has completed initial testing and will begin testing in yard service. UP NORTH LITTLE ROCK, Ark. — Union Pacific and rail technology firm ZTR have concluded the first portion of the pilot program for their battery-diesel hybrid switching locomotives, the company said Friday, with the pilot remaining on track for completion in 2026. The mother-slug set has completed initial testing and pro…
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trains.com broke the news in on Saturday, May 31, 2025.
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