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Re: SC14

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May 01, 2006 01:59PM
The " energy returned, on energy invested " ( EROEI ) for the biofuels is generally even, to negative, depending on which ones you are refering to. The EROEI for the endeavor of producing, and making available, all the various range of hydrocarbon products, has been steadily diminishing as the decades roll by. Around 30 years ago, it was around 25 to 1, and now, I read recently, it is down to 2 to 1. So it currently takes one barrel of oil in energy, to get two barrels worth in production. When it reaches 1 to 1, its a wash. You get out, what you put in. This concept is one of the main big problems, with the viability of the various alternative schemes out there which have been proposed as replacements for lost hydrocarbon energy sources. When you calculate out all the energy, and resources required to develop the various infrastrutures systems, on scales massive in size, which would be required, the EROEI doesn't add up to anything remotely close to a significant addition to energy, that could realistically fill the gap of what will be lost because of the depleting hydrocarbons. Our society, this country, has over the recent decades invested itself almost completely in a system that utterly depends on, and maintains itself with, cheap, affordable hydrocarbon energy. Now this arrangement is facing the inevitable depletion of the " life blood " that has fed the system. So what happens to a body when a gaping wound, depletes in rapid, and irreversable fashion, its supply of blood? That, IMHO, is akin to what we are now facing, when it comes to the " fluid ", that has kept the body of our nation, alive and intact.
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SC14

Wizard 820April 23, 2006 12:43PM

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Wizard 462April 24, 2006 05:07PM

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mojavegreen 438April 24, 2006 05:29PM

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Wizard 395April 24, 2006 10:39PM

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Rick 443April 25, 2006 10:05AM

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Wizard 490April 25, 2006 07:58PM

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Wizard 447April 25, 2006 10:49PM

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Rick 472April 25, 2006 11:53PM

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Wizard 439April 25, 2006 11:11PM

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Wizard 445April 26, 2006 11:40AM

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Wizard 442April 26, 2006 09:16PM

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Rick 426April 27, 2006 11:24AM

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Wizard 471April 27, 2006 08:57PM

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Rick 423April 27, 2006 11:21PM

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Wizard 409April 26, 2006 10:05PM

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Wizard 471April 27, 2006 09:41PM

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Wizard 473April 28, 2006 09:55PM

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Wizard 507April 28, 2006 10:27PM

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mojavegreen 438May 01, 2006 09:55AM

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Wizard 526April 30, 2006 10:42PM

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Rick 440April 30, 2006 10:47PM

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Wizard 848May 01, 2006 01:59PM

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Wizard 450May 01, 2006 01:14PM



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