Peter VanDerWal wrote:
I guess I have a different philosophy, I like to figure out if an idea is feasible and cost effective before I waste a lot of time trying to come up with designs.
For some people these considerations are irrelevant. That's cool too, not everything has to be practical and/or affordable.
Peter VanDerWal wrote:Have you done the calculations to determine how much water you need to store in your "Water Battery" to equal say 1kwh?
Since you mentioned a tower, I'm assuming you haven't done the calculations.
just some rough calculations, but if your lake is 50 feet above the turbine, you'd need about 12,000 gallons of water to generate about 1kwh worth of mechanical energy. If your lake is only 20 feet above the turbine, you'd need about 30,000 gallons, if it's 100 feet above the turbine, you'd only need about 6,000 gallons. You'd have to put about 2kwh worth of work into raising the water up to the lake, perhaps more, it depends on pipe length, pump efficiency, etc.
FWIW 1 Golf Cart battery stores 1.2-1.5 kwh worth of energy, depending on how fast you take it out, and a GC battery is portable.
Just something to consider.