NREL supports propane-to-electricity shuttle bus conversion at Zion National Park

Green Car Congress
By mmillikinJul 18, 2016, 11:59 am121 pts
NREL is evaluating the drive-cycle characteristics of a fleet of propane-powered shuttle buses operating at Zion National Park. The National Park Service (NPS) originally deployed the propane buses in 2000 to reduce congestion along the park’s main traffic corridor. As the propane-powered fleet ages and…

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