Depending on how much water the pump can lift, help from an open top cistern maybe, it might be possible to run the turbine round the clock for electric refrigeration. I don't know.
Don't return water to your well, whatever else you do. Only in a completely sealed, geo-thermal heatpump is this a safe thing to do.
paul wheaton wrote:
So ... kinda like this?
A tower would probably be very expensive, but if you have the slope to put in a dam as Joel says, that should be fairly cheap.
solomon martin wrote:I have thought about using elevated water (or any form of potential kinetic energy) as a green alternative to batteries. Imagine installing a bio-kinetic harvester (such as a hydrostatic displacement pump, or a trickle ram pump attached to a turn-style or a door-hinge) in high foot traffic area like a colliseum or a subway station so that you could generate energy passively with human movement. Purely conceptual at this point, but I think the idea of using elevated water and bypassing the battery system is worth exploring.
Slightly different idea: how about using a wind mill (or any other suitable alternative energy device) to elevate a large pendulum as a kinetic battery?