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Comment Re:There are other units, you know... (Score 1) 63

W is J/s, but the "per second" isn't obvious from the unit W. The energy unit Ws (or kWh, as is more customarily used due to its scale) has the time in the unit, but it isn't actually time based, because the s cancels the s from J/s that is invisible in the W. We could use J for energy and J/s for power (or scaled versions of these units), but we don't. The cardinal mistake was to standardize on W as the unit of power and derive customary energy units from that, instead of standardizing on J as the unit of energy and deriving customary power units from that. The power units, not the energy units, should have the time in the unit. Time is not involved when you talk about energy, so why do we use units that reference it?

Comment Re:Can we please stop using MW for storage capacit (Score 0) 63

This pet peeve is never going to get solved, because the units are the "wrong" way around: The unit of power doesn't include any hint that time is involved, but the way we express energy does. It's exactly opposite compared to the units that laypeople use most often: distance and speed. That's why you see kWh written as "kW/h". It makes no physical sense*, but to someone who just needs to adorn a number with a "unit", it absolutely does make sense. We like to dump on AI for not "understanding" and instead just using probabilities, but most people don't do much "understanding" either.

*) unless you want to express a rate of change of power, which nobody who writes that ever does

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