this post was submitted on 17 Nov 2024
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Using the remaining 99% of the cost to bury batteries underground would seem reasonable.
Underground construction generally isn't cost effective. It costs way more to get dirt and rock out of the way than just building a frame upwards. There might be other reasons to do it, but you want to avoid it if possible.
The underground suggestion was only to counter the argument of space usage.
Batteries can be containerized in modules, with a turnkey connection that remains mobile. Solar can use those containers as support structure. Hydrogen electrolyzer/fuel cells can also be built in same containers.