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What is "net energy"
deb2012
follow
2
4-8-2008 6:52 AM
239 views
tags:
economy
,
conservation
,
energy policy
deb2012
says:
thoughtful discussion with ideas presented on the peak oil problem
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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/b411dcf4-523e-41d6-9282-02145a0e1c54/F53BDE59-5495-4F6B-B406-EAC6C4A00644/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://thearchdruidreport.blogspot.com/2008/04/net-energy-and-jevons-paradox.html" href="http://thearchdruidreport.blogspot.com/2008/04/net-energy-and-jevons-paradox.html" style="font-size: 11px;">thearchdruidreport.blogspot.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://thearchdruidreport.blogspot.com/2008/04/net-energy-and-jevons-paradox.html">Net energy or EROEI (energy return on energy invested), for those who haven’t been following these debates, is the energy that can be obtained from a given resource, minus the energy that has to go into providing that resource to users. </blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://thearchdruidreport.blogspot.com/2008/04/net-energy-and-jevons-paradox.html">Discussions of net energy in the peak oil community have generally tended to focus on production costs, to the neglect of system costs. </blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://thearchdruidreport.blogspot.com/2008/04/net-energy-and-jevons-paradox.html">In terms of production costs, ethanol made from American corn is a losing proposition. It takes more energy to provide the fertilizers, pesticides, tractor fuel, and other energy inputs to grow the corn, and to ferment and distill it into fuel ethanol, than you get back from burning the ethanol. </blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://thearchdruidreport.blogspot.com/2008/04/net-energy-and-jevons-paradox.html">If governments in the industrial world want to launch a crash program to do something about soaring energy prices and spiralling energy shortages, then, the obvious choice is the one that worked in the 1970s – conservation</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;"> </td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/F53BDE59-5495-4F6B-B406-EAC6C4A00644/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>
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