[Buddhanz1] has been living off the grid for awhile now by harnessing power from a nearby stream with an old washing-machine-turned-generator. He started with a Fisher & Paykel smart drive ...
Tunnelling problems are plaguing the $12 billion Snowy 2.0 hydropower project, with a boring machine previously bogged in soft ground now wedged in hard rock and struggling to move. The tunnel ...
Small-scale hydropower is a fairly popular challenge ... something like this generator out of parts from an old washing machine.