this post was submitted on 02 Dec 2024
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[–] David_Eight@lemmy.world 11 points 2 months ago (2 children)

Tldr? Why would anyone do this? To what end?

[–] poVoq@slrpnk.net 4 points 2 months ago* (last edited 2 months ago) (1 children)

To utilize power that is otherwise wasted? The water can still be used in the garden etc. Also if there is a power cut the water often keeps running, so you could use this to charge a small battery or a phone.

[–] David_Eight@lemmy.world 5 points 2 months ago

If the power goes out you'd probably be better off using solar or a even gas. Maybe if you're using water for something else anyways it makes sense but how much power can really be generated by turning a house on for a min? How much water is wasted?

[–] unexposedhazard@discuss.tchncs.de 3 points 2 months ago (2 children)

You can do this with a long enough hose and height difference by just using river water

[–] Fiivemacs@lemmy.ca 4 points 2 months ago (2 children)

Why not set something up by the river instead and just route the power?

That requires a much bigger river, that carries enough water to drive a big ass wheel, which limits your options for location a lot. If you take a look at the video i linked in the neighboring comment you can see what is possible with just a little water stream if you have the right setup.

[–] DmMacniel@feddit.org 3 points 2 months ago

what? Something like a Water Mill? You are crazy!

[–] David_Eight@lemmy.world 1 points 2 months ago (1 children)

I don't think you'd get enough water pressure that way.

[–] unexposedhazard@discuss.tchncs.de 5 points 2 months ago* (last edited 2 months ago) (1 children)

Just a question of height difference. 100m = 10bar

I just remembered this video i watched a while ago with a 2.5kW generator https://www.youtube.com/watch?v=h_5wpkMmCOY

That one just has a head(height difference) of 60m so 6bar and it works just fine

[–] David_Eight@lemmy.world 1 points 2 months ago

Ahh, I see now. That all makes way more sense lol. Thanks for sharing.

[–] dudenas@slrpnk.net 6 points 2 months ago (1 children)

Given most of water comes from public facilities it is structurally just unsanctioned and ineffective transmission of power from shared pump to private generator. Would be a simple energy theft if you didnt pay for water. A waste of water and energy anyway.

[–] Fisherman75@slrpnk.net 1 points 3 days ago

That actually kind of makes sense. It just seems like there's a reason we pay for these things.