How big does a Li-Po battery has to be to absorb a lightning bolt?

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SUMMARY

To effectively capture and store energy from a lightning bolt, a Li-Po battery would need to be significantly larger than conventional systems, potentially requiring cubic kilometers of storage capacity. The discussion highlights that while lightning is a high-power DC source, scaling existing energy storage systems, such as UPS units, is not straightforward. The energy density of batteries, estimated in megajoules per liter, plays a crucial role in determining the feasibility of such a project. Ultimately, the technical challenges of capturing and storing lightning energy remain substantial.

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Electrical engineers, energy storage researchers, and anyone interested in innovative methods for capturing and utilizing natural energy sources like lightning.

ketamynx
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What I'm asking is not strike and dissipate, I'm asking really capturing and storing the energy for later use. I mean are we talking more than cubic kilometers?

I know a thunderbolt is just regular, really high power DC but if 220V@10,000W can be bottled in a less-than-half-a m³ UPS, why is it more than just a matter of scaling the system up?

I also know that lightning doesn't strike the same point twice but at a big size, a so called "big battery" can have like thousands of antennas and sit in a place like Canada where it rains a lot.
 
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If you forget about all technical problems you can get a crude estimate by dividing amount of energy in the lightning by the battery energy density - something in the range of MJ per liter.

Not that it makes you any closer to really storing the lightning energy.