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It's indirectly solar power, and ethanol can hold more energy per volume than batteries. However all of the other inputs that go into growing ethanol cancel tha

by vondur 3y ago

It's indirectly solar power, and ethanol can hold more energy per volume than batteries. However all of the other inputs that go into growing ethanol cancel that advantage out. If we were using Nuclear or maybe pure solar to produce the fertilizer perhaps the math may work out.

User23 3y ago
Literally everything except nuclear and maybe geothermal is indirectly solar power. Nuclear is indirectly dead-star power; fossil star fuel. Unless of course the abiogenesis theory is correct, in which case oil and at least some natural gas are also dead-star fuel.
- krisoft 3y ago
  > Unless of course the abiogenesis theory is correct, in which case oil and at least some natural gas are also dead-star fuel. I don't see how whether abiogenesis theory is correct or not matters here. The energy trapped in oil and natural gas is not from "life" but from the sun. Of course it wouldn't have accumulated without life, but that is not the source of the energy.
  - User23 3y ago
    Abiogenesis means oil and gas are primordial matter. Trapped sun energy in the form of biomass is biogenesis.
    - krisoft 3y ago
      Ah thank you for the clarification. I was not aware that it was used in that meaning too. The only meaning I did know is in the context of origin of life.