Plenty of issues with hydro, but in the grand scheme of things, it does seem like by far the most accessible, actionable, least polluting option. I've often wo

Plenty of issues with hydro, but in the grand scheme of things, it does seem like by far the most accessible, actionable, least polluting option. I've often wondered what scale of a system would be required to power a fully off the grid home at say 30kwh/ day, for say, 6 days? I'm imagining a tank based system with two tanks where the fluid is effectively just exchanged (so one doesn't have to account for the environmental impacts of a dam or for losses due to evaporation).. After some googling: https://www.edie.net/library/Using-pumps-as-turbines-to-generate-power/5998 https://www.edie.net/library/Using-pumps-as-turbines-to-gene...