"The financial burden has left the cities scrambling for alternatives, but the real question is: why did anyone expect this to work in the first place?This is just the latest in a string of failures for hydrogen buses....A 2023 report from TfL revealed that the total operating cost of hydrogen buses was around £1.50 per mile, compared to £0.80 for diesel and £0.65 for battery-electric buses. The high costs, combined with refueling challenges and supply chain issues, led TfL to shift its focus toward battery-electric alternatives....Hydrogen buses suffer from brutal energy inefficiencies. Producing hydrogen from electricity involves multiple conversion losses. First, electrolysis, the process of splitting water into hydrogen and oxygen, is at best 70% efficient. Then, the hydrogen must be compressed and transported, losing another 15-20% of the energy in the process. Finally, when the hydrogen is used in a fuel cell to generate electricity, only 50% of the remaining energy is converted into motion."
segunda-feira, março 17, 2025
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E volto a usar a mesma imagem desta outra curiosidade do dia sobre o mesmo tema, torrar dinheiro impostado aos contribuintes para bincar ao hidrogénio.
Mão amiga fez-me chegar "The Hydrogen Bus Illusion: Essen & Mülheim's Costly Reality":
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