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2024-09-15 15:17:37
in reply to

Brunswick on Nostr: The amount of energy that goes into making ethanol far exceeds the amount of energy ...

The amount of energy that goes into making ethanol far exceeds the amount of energy you can extract just by burning the entire plant. Electricity produced at reasonable scales extracts 1/2 of the energy from combustion. The waste heat is often used for heating either municipalities or industrial chemical processes. Thermodynamically, you do not get better efficiency than 50%. Once its converted to electeicity, the energy is delivered to your battery at nearly 100% (yes i know its less, but for argument's sake it might as well be). Lithium ion batteries, a true modern miracle, have very very low energy loss during charging, storage and discharge.
With alcohol, if you were 1% efficient you'd be lucky; this if you include solar energy conversion to plant sugars, chemical spraying, harvesting, drying, mashing, distilling and delivery.
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