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We have a PV array installed on our campus, under the same ownership, but not on the building or within the LEED project boundary. Can we count that toward EAc2?

Because of how our onsite PV system was financed through the utility, the project is selling the RECs associated with its solar energy production, even though we own the PV array and its power. Is there any way we can earn EAc2?

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Our PV system is being installed after the building is occupied. Is that okay?

Our project will have a PV system onsite, but it will be installed, operated, and owned by a separate entity that is paying for the system through a premium price per kWh paid by the utility, per state regulations. Is there any way to count this toward th

A biofuel-based cogenerator is being used to produce both electricity and heat (CHP). Can I consider all the energy produced, or just the electricity?

Can a backup generator qualify, if it runs on biofuels?

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NC-2009 EAc2:On-Site Renewable Energy

Bio-fuel Boilers

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Martin Meehan
Principal
Meehan Associates
LEEDuser Basic Member
14 thumbs up

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 Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Tue, 11/08/2011 - 14:16

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.
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Martin Meehan
Principal
Meehan Associates
LEEDuser Basic Member
14 thumbs up

Thu, 11/24/2011 - 11:19

Thanks Marcus, the Reference Guide is definitely misleading on this point so your clarification is very useful.

Thu, 08/08/2013 - 15:16

We have a simular case. Could you please name the source of the mentioned limit how langer after construction you can apply?
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Mon, 08/12/2013 - 13:40

Could you be a bit more specific with your question? Which limit are you referring to? Apply for LEED Certification?

Wed, 08/21/2013 - 15:01

I beg your pardon. I posted the question above at this point by error.

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