----- Original Message ----- From: "Kris Kirby" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, September 17, 2002 3:31 AM Subject: Re: storing power
> On Tue, 10 Sep 2002, Brendan Kirby wrote: > > Round trip efficiency for pumped storage is about 80%. > > Really? I did not know that. > > I've been harboring delusions of building a PV / Wind power system for > quite some time. The one nagging factor with the way that I want to do it > is that I don't want to waste any generating capacity. If they batteries > are full, find another way to store the energy. Pumped storage, I must > say, has "nifty factor" written all over it. The problems, however, are > numerous. > > One is that you can only count on a pump to push water so far uphill. Two > is that you're probably going to have to start with a submersible > (well) pump and go from there adding pumps as necessary to insure > operation. Then you've still got to deal with the turbine, or generation > side. Kris, Grundfos has a real nifty setup that can combine wind and PV with a submersible pump, and it's simple enough that almost anyone with some mechanical ability can set it up. It's designed for remote applications like cattle watering or remote cabins; pumps into a tank/cistern open flow. Contact me off list for more info; I want to put a page on my website about this system soon. Joseph H. Strubhar E-Mail: [EMAIL PROTECTED] Web: http://www.gremcoinc.com
