[Gasification] Economy for CHP on Biomass

[Greg Manning]

 Ooooo.
 
 I wish  could add one to that list at the end.
 
 Tom, it's coming, please bare with me..........
 
Greg
 
 
 -----Original Message-----
From: gasification-bounces at lists.bioenergylists.org
[mailto:gasification-bounces at lists.bioenergylists.org]On Behalf Of Tom Miles
Sent: Thursday, December 30, 2010 11:27 AM
To: 'Discussion of biomass pyrolysis and gasification'
Subject: Re: [Gasification] Economy for CHP on Biomass



Thomas,

 

I looked at the proceedings with a similar view. We do need cost and
performance benchmarks. I have not much to add. 

 

270 €/MWH would be welcome. We can't justify gasification without heat
recovery with our electricity (100-180 $/MWH, 132-228 270 €/MWH) and heating
fuel ($10-$22/MMBtu, $13-28 €/GJ) costs. Wood fuel is $40-$60/dry ton
($2.50-$3.75/MMBtu, 3.1-4.7 €/GJ).  

 

Real capital costs are somewhere between $5-$10 Million/MWe(6-13M €/MWe) for
a plant designed with a pro forma capacity factor of 85% (85% x 100% full
load capacity x 8760 hours per year). Actual operation is probably more like
50%-60% (4,000-5,000 hours/year) due to heat loads. (You can always design a
cheaper plant that is less reliable, or reliable for fewer hours per year.)


 

In most of our recent design studies gasification can be competitive for
retrofit or direct heat but power production is marginal except when you can
offset high cost electricity and high cost fossil fuel (e.g. propane).   

 

CPC advertises 15,000+ hours el/20,000 hours total for their (Dixon Ridge,
CA)walnut shell genset in California ( http://www.gocpc.com/
<http://www.gocpc.com/index.html>  ). The only continuously running recent
genset over 100 kWe in North America that I know of has run about 1200
hours. I would be happy to hear of others. 

 

 

<<Snip>>

 

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