Re: A note on cheap clean energy.

"robert luis rabello" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
>
>
> Dan Bloomquist wrote:
> > All you need is a coastal reservoir separated from the ocean with a
> > barrier. There are locations where this can be done economically. Then
> > you have all the displacement of the water that would move across the
> > barrier from the tide to draw the energy from. All it takes are simple
> > hydro-electric turbines which are a well established technology.
>
>     I remember something similar located in Albion, on the northern
coast of
> California.  Long ago, somebody built a lagoon and installed a
reversible
> water wheel.  As the tide came in, water would flow into the lagoon,
turning
> the water wheel, and when it went out, the water wheel turned in the
> opposite direction.

Some working and some proposed tidal power systems can be seen at
http://www.energy.org.uk/EFTidal.htm

This topic has been under serious study for a long time. For example, see:
http://www.bopcris.ac.uk/bop1917/ref520.html

Regards,
Neil Adams