Peter VanDerWal wrote:I'm assuming your intention is to have power even when the sun is down?
Not that it matters, your idea is not likely to work, or at least not well.
It might work if you had two large ponds, and one was about 100 feet higher than the other. Or if you had two small lakes with one that was 10-20 feet higher.
It takes roughly 30,000 gallons per day to power a fridge and some lights if you have 100 feet of head, or about 300,000 gallons a day with only 10 feet of head.
And of course your storage efficiency will suck. A couple golf cart batteries will be cheaper than the pumps, turbines, generators, etc. and will have at least twice the efficiency so you'd only need 1/2 as many solar panels.