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A comment on World’s largest battery maker announces major breakthrough in energy density. Parent comment

Re:World’s largest battery maker announces major breakthroug... by saalweachter on Friday April 21, 2023 @10:49AM (#35654597)
This does come up a lot ... for ethanol production. How much fuel is used to produce ethanol is constantly discussed, with some people claiming it is barely break-even or even energy-negative.

But yeah, no one then goes on to give equivalent numbers for petroleum.

[ Parent | on HN ]
Re:World’s largest battery maker announces major breakthroug... by 0cf8612b2e1e on Friday April 21, 2023 @04:00PM (#35659205)
Always have to note that ethanol production from corn has dubious energy payoff. Switchgrass is definitely energy positive, but lacks a strong lobbying group to provoke similar investment and development.
[ Parent | on HN ]