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1kW/h for 3 hours or 3kw.

400g plastic to 286g oil.

Seems extremely carbon negative.



> kW/h

(tears hair out)


Still not as bad as kwh/hr. That one is showing up on some car UIs now.


Why can’t we just use the right unit for energy - Joule? A battery capacity should be stated in MJ / GJ.


An hour is a popular unit for me personally. I measure my work and plan my day in hours (since pretty much all clocks use hours, not kiloseconds).

I don't use seconds very much (with the exception of Unix epoch seconds, or a short experiment).

I can't divide by 3600 in my head. I can, however, multiply by 1. Therefore, Watt-seconds (AKA Joules) are not as useful to me as Watt-hours and kiloWatt-hours.


Natural gas is consumer priced in GJ and seems to work fine. Eventually we would just develop and intuition about number of K/M/G J in various battery sizes without the complex/ugly kwh unit.


I hear this occasionally, but what are the benefits relative to kwh?


It basically comes down to stating things in their simplest and most correct form. It is like using 75/25 to express the number 3. When expressing an energy value, use the right unit (Joule) not a derived unit multiplied by another quantity to get back to the original.


That's at least dimensionally correct.


Maybe the machinery takes 3 hours to spool up to generating 1kW?


No, it gradually increases its consumption at a rate of 1 kW every hour, thus at the 3-hour mark it's consuming 3 kW.


Gosh. Better make sure you put it on a timer switch or that's going to get expensive.


It can't be carbon negative if you burn the resulting oil. The carbon in the atmosphere goes up.

Ths technology is pointless. The carbon can be sequestered as plastic.


But they don't like doing that because it does break down over time and starts leeching into the soil underneath.

Which can be caught and prevented, of course, but nobody wants to build a landfill like that.

I too think it should be sequestered, ideally in fairly stable conditions; worst case, it stays there for the next thousand years and the plastic breaks down into whatever it does (entropy etc). But in a good case, they discover a means to effectively reuse, recycle or break down plastics, so that the sequestered plastic can be processed.

But it's not economically viable, not when it's cheaper to export it AND get paid by counties and the government (in the form of subsidies) for the box-ticking exercise of separating it out and calling it recycled.


Huh? Everyone already builds landfills like that. They have to be clay lined anyway and leachate collected for a number of reasons.




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