See all forum discussions about EBOM-2009 EAp2

Subscribe to new posts about EBOM-2009 EAp2 Post a new question aboutEBOM-2009 EAp2

See LEEDuser’s guidance on EBOM-2009 EAp2»

FAQs about EAp2 :

We have installed submeters on our building but the utility bill includes energy use from several other buildings located on the same campus. How do we reconcile this during the LEED review process?

When is it possible to exclude up to 10% of the building from EAp2?

What do I do if the number of building occupants, operating hours, or vacant space changes during the performance period?

If you pursue the streamlined path for an Energy Star label, should the performance period for EAc6 match the 12-month time frame of the label?

How do I account for computers with multiple monitors on Portfolio Manager?

How should I treat vacant space on Portfolio Manager?

Our building includes a large laboratory space. Can our project benchmark under the Labs21 program?

We have an international project and the space type is eligible for an Energy Star rating. Can we pursue Case 1 to demonstrate compliance given the recently released alternative compliance paths for international projects?

We have a number of buildings on a single campus that we would like to certify at the same time. Is it possible to benchmark the buildings at the campus level?

I have a mixed-use building and am wondering if it is possible to pursue the prerequisite through Case 1. How do we proceed?

We have a building that consists of two attached structures and it’s unclear if we have to consider it a single building or if it should be certified as two separate buildings and benchmarked accordingly. How should we proceed?

How long is an Energy Star label valid to use with a streamlined approach for Case 1?

Our building includes heavy process loads that significantly increase the overall energy use in the building. If we submeter these loads, can we exclude this energy use for benchmarking purposes?

View answers »

Forum discussion

EBOM-2009 EAp2:Minimum Energy Efficiency Performance

Off-grid Project in Mexico

Jeremy Kuhre

Sustainable Buildings & Operations Manager

Sustainable Solutions Corporation

LEEDuser Basic Member

33 thumbs up

June 4, 2013

We are currently evaluating an off-grid hospitality project in Mexico. The project is primarily powered by a 32kW PV array which is sometimes supplemented by a propane generator. Except for the propane receipts, we are obviously not getting any utility bills. My first inclination was to simply add the kWh produced by the PV inverters to the propane consumption. However, in cases where the PV array was actually producing more than what is needed, this number would be higher than actual building consumption. My second inclination was to submeter all building systems (and not included generator/PV array inputs). Can anyone confirm that this would be an appropriate approach? Does anyone have experience with off-grid projects pursuing this credit?

Post a reply

Michael Opitz

Director of Sustainability

Iconergy

LEEDuser Basic Member

40 thumbs up

Fri, 06/21/2013 - 01:12

Jeremy: I believe your second approach is reasonable, and in fact, I believe your first approach is also reasonable since it is conservative at times when it is not accurate (i.e., during months where PV produces more than the building's consumption needed). So, if you use approach #1 your building's EUI, although not technically accurate, is overstated, and thus its # of LEED points would be understated. I believe this should be acceptable to GBCI, though you should submit this in a CIR if you need to be 100% sure.

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.