Came across this
http://www.brownstoner.com/forum/archives/2011/05/geothermal_in_p.php
Wow really interesting read
http://www.nyc.gov/html/ddc/downloads/pdf/geotherm.pdf
I had no idea that they were sucking in ground water in geothermal wells, i always just thought it was some kind of closed loop where the ground was coming into contact with water in pipes and this was sucking the heat off.
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