I’m all for an electrified future, but until battery weight-to-energy density improves, I believe we need efficient, blended solutions that get us to the future in practical steps. As I understand it, diesel generators run rather efficiently at a consistent RPM. Would a diesel generator powering a small battery bank be a better solution than all-electric on semi trucks?
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A lot of the emissions from a diesel are related to the engine accelerating and slowing down. Using a diesel at a constant RPM will provide a significant improvement in emissions. For short hauls, it could run as a pure electric, and on longer runs, of course, the engine would have to be started.
What you are describing is a series hybrid, and I think they are a valuable addition to the options that are available.
https://www.electricbike.com/15-plug-in-hybrid-cars-and-why-i-like-them/
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