From my reading of the Reference Manual for this credit it seems that Bio-fuel can only be used to generate electrical power on-site, and not to power bio-fuel boilers for water heating or space heating. Is this interpretation correct? In that case only something like a mini-CHP unit burning bio-fuel is eligible going the bio-fuel route. And even then you are restricted in the bio-fuel you can use, ie. it pretty much needs to be ethanol produced from food waste - is this correct? I don't know of any bio-gas or wood chip CHP systems...
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5867 thumbs up
November 8, 2011 - 9:16 am
While the language in the Reference Guide has not been changed, it is in error. Eligible bio-fuels can be used directly and do not have to be converted to electricity. The list of eligible bio-fuels includes untreated mill residues, agricultural waste/crops, landfill gas and animal/organic waste.
There is a long history in LEED allowing the improtation of landfill gas to be burned and used for heat not just electricity.
Martin Meehan
PrincipalMeehan Associates
24 thumbs up
November 24, 2011 - 6:19 am
Thanks Marcus, the Reference Guide is definitely misleading on this point so your clarification is very useful.
Joern Drosten
August 8, 2013 - 11:16 am
We have a simular case. Could you please name the source of the mentioned limit how langer after construction you can apply?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5867 thumbs up
August 12, 2013 - 9:40 am
Could you be a bit more specific with your question? Which limit are you referring to? Apply for LEED Certification?
Joern Drosten
August 21, 2013 - 11:01 am
I beg your pardon. I posted the question above at this point by error.