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this post was submitted on 13 Aug 2023
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Showerthoughts
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Lightning has a peak power of 1TW for 30 microseconds according to Wikipedia, corresponding to an energy content of about 8000 Watt-hours. That is enough to run a 100 watt conventional light bulb for 80 hours, so not actually much energy. You would need to capture about half a million lightning strikes a second if you wanted to power the world that way, for example.
According to https://www.metoffice.gov.uk/weather/learn-about/weather/types-of-weather/thunder-and-lightning/facts-about-lightning
That would be barely 45 strikes each second.
That's four magnitudes away from your cited goal of powering earth.
The reason noone talks about harnessing lightning as a power source is the diminishing returns on top of its unreliability and it being demanding on the tech it would need - which we know for decades now.
My conclusion is OP didn't ~~research~~ google his question first.