Back to the Future’s 1.21 gigawatts sounds huge, but is it? We compare different power levels of common objects to see how much energy a gigawatt really is.

  • @[email protected]
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    46 months ago

    Where are you getting those numbers from? First of all, GW is a unit of power, not energy. You can’t “produce 1.21GW in a day” because it’s a measurement of instantaneous power. Some nuclear reactors produce around 1GW(e), which means 1 gigawatt hour per hour.

      • ignirtoq
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        26 months ago

        Yeah, and the article is wrong, though only slightly. They seem to be confusing watts (power, energy over time) with Joules (energy, power times a duration of time). They give a passable definition in the beginning (“energy transfer”), but they seem to misunderstand what the “transfer” part means exactly.

        If you find-replace all instances of “watt” with “watt-hour” after that starting definition, it would be more accurate. That’s why I say it’s only slightly wrong.

    • po-lina-ergi
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      16 months ago

      1.21 gw = output of one nuke plant
      1.21 gw × 1 day = (power requirements of a house) × (100 years)

      I’m guessing