There is only one goddess Gaia and Al Gore is her only prophet...

[Kevin]

Hi,
Whoops. You are speaking of heat pumps, and what you are saying is true -- for heat pumps.
--Pete

Thanks for that Pete since I'm on the same page with you. Heat pumps can still be used and are used for small scale (and enough small scale works out to moderate or large scale) applications. It's certainly not a bad thing to pursue or implement, but as you say it's not geothermal power generation in any sense that I've ever learned. Your earlier link jives with everything else I understand on the subject and even talks about a very interesting and much more practical "geothermal anywhere" solution.