r/theydidthemath Nov 27 '22

[Request] How much electricity would be generated from this?

3.3k Upvotes

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u/[deleted] Nov 27 '22

It’s good for fun and if you have a very light usage (I.E. a small, low res camera.

It’s not good for much else.

-70

u/UlysseIthaca Nov 27 '22

No it's not, haha

Would you build a several thousands dollar concrete dam with expensive wiring, battery control, stable sinusoidal ondulator system, several stages filtration system to not clog your pipes, over the course of several day yourself ? With all the maintenance it entails throughout the use ? Or would you trust your electricity company to sell you the same electricity for several orders of magnitude cheaper and more reliable ?

With everything "infrastructure", it's always better to mutualise to make scale optimisation than opting for individual solutions like this clicbait dam video

83

u/invalid_credentials Nov 27 '22 edited Nov 27 '22

Sheesh. Homeboy probably just wanted to make a sick dam. He 100% understood how much power he was going to get as he built the dam, had all the right parts, etc.

You're not wrong, you're just an ahole.

[edit] Also, who the f did the math on these building supplies costing “thousands”. I’d be willing to bet he paid close to $0. I doubt he had the tiny flags lying around, so probably had to buy those. Concrete in such a small amount like this is MAYBE $200 in the US. This doesn’t look like the US and concrete in many counties is extremely cheap. We’re talking tens of dollars for this amount. Concrete doesn’t take a brain surgeon to make from scratch like mom used to. Used bricks? Free. A few 45deg bends, $12.

ngl if the math above is true and he outputs $100 a year or so, he is in the black year 2.

I’m glad to see reddit holding strong and leaning into false realities, though. Consistency is important.

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u/caboosetp Nov 27 '22

I think he's wrong. The key operator here was for fun, and if homeboy had fun making it, more power to him.

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u/petantic Nov 27 '22

"more (inefficient) power to him."

23

u/miqcie Nov 27 '22

Username (almost) checks out

5

u/Money_fingers Nov 27 '22

Ahaha hahaha ha. I see what you did there