Real-world figures | Hydrogen buses cost 2.3 times more to run per km than battery electric ones, says Italian study
The relative energy inefficiency of fuel-cell vehicles is primarily responsible for the difference, report explains
A study into the real-world operation of zero-emission buses in the northeastern Italian province of South Tyrol (officially known as Bolzano) has found that its battery-electric buses were 2.3 times cheaper to run per kilometre than hydrogen fuel-cell equivalents, on average.
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The report explains that the FCEBs were powered by green hydrogen produced in-house, and while it does not explicitly state that the electricity used by the BEBs was renewable, it does point out that 89.9% of the mountainous region’s power comes from clean hydroelectricity.
SASA’s two BEB models, both manufactured by Poland’s Solaris, were found to have tank-to-wheel (TTW) efficiencies of 137 and 153.80kWh per 100km, while the two FCEB models — made by Solaris and Mercedes-Benz — had average efficiencies of 310.24 and 335.75km per 100km, respectively, figures that are between two and 2.45 times lower than the battery buses.
And this does not include the energy losses from converting renewable electricity to hydrogen.
SASA is the main bus operator in South Tyrol, owned by the local of municipalities of Bolzano, Merano and Laives and the autonomous province of Bolzano, which currently operates about 300 buses.
The province aims to make all its public buses emissions-free by 2030, with 180 FCEBs and 210 BEBs.
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