this post was submitted on 30 Nov 2023
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When I lived off grid, I wrote an energy production measurement application. With both hydroelectric and solar going through a 1990s inverter, it was something. Nowadays these are off the shelf for suburban yuppies, but for my DYI-everything homestead, only DIY would do. Measurement was via shunts. I put it online over satellite internet and could watch my production and static consumption from work.
You built your own hydro? Tell me more!
From what I've gathered from youtube you'll usually need to create a height difference of some sort by damning up a bit of a stream, then have the overflow go through a pipe that's a sheer drop down onto an impeller attached to an electric motor (bonus points if it's recycled from something like a washing machine).
Then from that motor it's on to battery chargers etc....