Re: Cellulosic Ethanol

From: Tim O'Flaherty (pinwheels_Fudge__at_gwi.net)
Date: 08/28/04 

Date: Sat, 28 Aug 2004 08:18:01 -0400

"Robert" wrote

> Yes, maybe, but you have to consider the energy payback times of wind,
solar,
> etc, before you can say that.

From:

http://www.windpower.org/en/tour/env/enpaybk.htm

"Energy Payback Period for Wind Turbines
Two to Three Months Required
Modern wind turbines rapidly recover all the energy spent in manufacturing,
installing, maintaining, and finally scrapping them. Under normal wind
conditions it takes between two and three months for a turbine to recover
all of the energy involved. "

That is on a machine that will last for decades. Doesn't sound like an
energy sink to me.

Regards,
Tim O

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