Forum discussion
NC-2009 EAp2: Minimum Energy Performance
Does LEED make a difference between GLP and Natural Gas? EAp2 template contemplates natural gas and electricity but we have showers that use GLP for domestic water heating. How should we approach that in energy modeling?
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A portion of our building envelope is historic. Can we exclude it from our model?
For an existing building, do I need to rotate the model?
Our process load is higher than 25%. Do we have to justify that?
Our local code references ASHRAE 90.1-2010. Should I use that for my documentation, or 90.1-2007?
Can mezzanines open to floors below be excluded from the energy model?
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For a project outside the U.S., how do I determine the climate zone?
For a project outside the U.S., how do I determine the Target Finder score?
Do hotel rooms need automatic light shut-off control?
How commonly are the 90.1 mandatory compliance forms submitted as part of EAp2/EAc1?
The Section 9 space-by-space method does not include residential space types. What should I use?
Can the Passive House Planning Package (PHPP) be used to energy model for LEED?
Which baseline HVAC system do I use if my building has no heating or air conditioning?
Our project has a diesel backup generator. Should we include it in our energy model?
Can SHGC be higher in the proposed than in the baseline model?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
April 25, 2013 - 11:20 am
I am assuming you mean propane or liquid petroleum gas. You can enter any fuel type in the EAp2 form. As far as modeling goes I would assume that you could model that fuel type. You could model it as natural gas as long as you convert the results to adjust the fuel consumption since LP gas has a different BTU content than natural gas. If you do make sure you explain it to the reviewer.
Marcio Alberto Casado Pereira
181 thumbs up
April 25, 2013 - 12:44 pm
That clarifies, thanks Marcus.
We have another question though (unrelated to the fuel issue above) concerning a future elevator. The project is envisioning an elevator shaft, but the elevator itself will not be installed anytime soon. The equipment won't even be specified by the time of submission. However, the shaft will be in the architetcure drawings. What's the approach for that situation as far as energy modeling? Does the load of this elevator has to be taken into account?
Thanks
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
April 25, 2013 - 1:41 pm
I would not include it and just explain to the reviewer what you explained above.