To make solar power viable, we need a solution for overnight energy storage.

Batteries are complicated.

Do you know what isn’t? Water go up.

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29 points

It’s fine for places that have a lot of water and hills

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you can use saltwater for it though, doesn’t need to be fresh water or treated in any way, just a physical medium to make turbine go brrr

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15 points

Machinery and saltwater generally don’t mix very well. And you’d still need to make a saltwater lake somewhere uphill.

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yeah but in this case it’s just a pipe and a turbine it’s gotta make move

And you’d still need to make a saltwater lake somewhere uphill.

water tanks tho

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10 points
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For places without water, what’s wrong with importing a bunch once? Evaporation suppressors exist to help with hotter climates.

You’re probably right about the hills. Building a water tower that can hold an entire lake seems inefficient.

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13 points

How are you importing an entire lake?

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19 points

Truck? 5G? Just let a tiny faucet run a long time? IDK.

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12 points

from somewhere import lake

lake.flow()

It’s just that simple!

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11 points

Use a very long hose.

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4 points

You don’t really need huge volumes of water, a 5GW hydro storage proposal in Australia will require 38 gigalitres, or 0.038 cubic kilometres. At a depth of ten metres, that’s a 2km circle (or rather, two ~1.5km circular reservoirs).

Arizona uses ~8500 gigalitres a year to put that in comparison.

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