Same application at Twin Lakes, Colorado.

> -----Original Message-----
> From: Hans Hendriks [mailto:[log in to unmask]]
> Sent: Thursday, January 25, 2001 12:47 PM
> To: [log in to unmask]
> Subject: Re: John's primer on volts, watts, and amps...
>
>
> "Wayne R. Boyer"  said
> > Also the press has done a poor job of explaining that
> saving electicity at
> > for example, 3AM does nothing because the peak power demand
> is in the
> middle
> > of the day.  Do other states have meters that track power usage at
> different
> > time periods in a day and consequently paying a lower rate
> at night?  CA
> > doesn't do that.  Not allowing such meters is just another
> dumb thing that
> CA
> > government has done.
>
> Interesting application of this is with the Steenbras power
> project, near
> Cape Town, South Africa, where the water from a dam in the
> mountains powers
> hydro-electric generators on its way to a reservoir lower
> down. In off-peak
> periods, the generators run in reverse to pump the water back
> to the higher
> dam.
>
> See http://www.earthlife.org.za/ghouse/gfiles/energy/ss3.htm
>
> The world's biggest batteries?
>
> /Hans
>