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[–] [S] 8 points 2 months ago (4 children)

Seems like water is more valuable than recycled concrete though.

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  • [–] 1 point 2 months ago (3 children)

    Doesn't always have to be the same water, where this would have to be the same concrete

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  • [–] [S] 4 points 2 months ago (2 children)

    I'm not sure why it would be a problem that it's the same concrete though

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  • [–] 1 point 2 months ago (1 child)

    I guess my thought is if you used water it could be hooked up to a larger reservoir and just pump from the water that's there. Whereas the concrete used would serve no other purpose outside of energy storage.

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  • [–] [S] 2 points 2 months ago

    Yeah, if you have a reservoir to pump from that could make sense as well. I'm guessing different regions would prefer different approaches based on what's available. They do mention concrete is recycled, so it's not like new concrete needs to be produced either.

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