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Author Topic: Alternatives to LNG in ethanol plants? Back to Topics

Veteran Author

Joined:May 2013
Message Posted: Jan 9, 2014 5:14:44 PM

My imperfect math tells me that 6 MW worth of wind turbines could provide enough power to run an ethanol plant, essentially delegating natural gas to the position of "backup energy supply". 2 MW wind turbines aren't cheap, but they could be paid off in 2-3 years by the savings on LNG, and this would drop the price of ethanol even more.

Why don't more plants do this? Or why aren't more biorefineries positioned next to hydroelectric dams?
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Champion Author Illinois

Joined:Nov 2012
Message Posted: Jan 13, 2014 10:36:54 AM

"Why don't more plants do this? Or why aren't more biorefineries positioned next to hydroelectric dams?"

You might be underestimating the cost of building a wind turbine. As far as biorefineries near dams, there aren't too many dams in the corn belt or any other region where biofuel substrate is grown.
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Champion Author Nashville

Joined:Oct 2005
Message Posted: Jan 13, 2014 9:40:22 AM

End all ethanol requirements now.
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Champion Author Lexington

Joined:Aug 2008
Message Posted: Jan 12, 2014 1:06:18 AM

Everyone keeps spouting about natural gas, but there IS NOT AN INFRASTRUCTURE to support it and I haven't seen any plans for one as yet.
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Champion Author Oakland

Joined:Aug 2012
Message Posted: Jan 11, 2014 5:02:13 PM

How long has it been since a hydroelectric plant was put in service?
essentially NIL is the last 30 years.
Gosh, hydroelectric power sounds great -- so why don't we use it to produce all of our power? Mainly because you need lots of water and a lot of land where you can build a dam and reservoir, which all takes a LOT of money, time, and construction. In fact, most of the good spots to locate hydro plants have already been taken. In the early part of the century hydroelectric plants supplied a bit less than one-half of the nation's power, but the number is down to about 10 percent today. The trend for the future will probably be to build small-scale hydro plants that can generate electricity for a single community.

Kansas and Iowa are not good sites for dams.

Let's face it looks like we are getting a little desperate in our attempts to justify ethanol!
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Veteran Author Minnesota

Joined:Mar 2011
Message Posted: Jan 11, 2014 1:30:55 PM

At the Corn Plus Winnebago,MN ethanol plant that goldseeker has linked they have two wind turbines max output 2.1MW Total 4.2MW max. Problem is they need minimum 9MPH wind to run & max output is something like 30-35MPH or better wind speed. At 55MPH or better they shut off to protect from damage.Corn Plus rep stated a few years back they were providing about 45% of the electric used at the plant.I have seen use 30% of max capacity as approximate expected annual output.
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Champion Author Twin Cities

Joined:Mar 2006
Message Posted: Jan 10, 2014 9:47:12 AM

Alternatives are a good thing.
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Champion Author West Virginia

Joined:Sep 2005
Message Posted: Jan 10, 2014 12:11:44 AM

Wind turbines spinning at ethanol plant
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