Forum discussion
NC-2009 EAp2: Minimum Energy Performance
Hello,
I have a question regarding the Exterior Building Lighting Power. For the project I am working there are a copuple of exterior areas that do not fall in any of the categories of Table 9.4.5 of Ashrae:
1. The perimeter of the project boundary, which has several lighting fixtures.
2. Two sport courts that use several lamps for use at night.
Under which category should I include this areas in order to calculate the baseline exterior power allowance?
Many thanks in advance,
Santiago
LEEDuser is supported by our premium members, not by advertisers.
Go premium forTo post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.
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?
How do I provide a zip code for an international location?
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
August 15, 2014 - 12:40 pm
Any area that does not fall into a category I would treat as process lighting and model identically. The sport lighting is exempted by 9.4.5-e but must still be included in the models.Perhaps the boundary lighting would be considered a special feature area under the building grounds?
Santiago Rodriguez
Revitaliza Consultores65 thumbs up
August 15, 2014 - 2:21 pm
Thank you Marcus,
The boundary lighting could be treated as a special feature, but since that category uses the area to calculate the allowed power, it is a bit tricky how to calculate it, which width should I use? For me it seems more reasonable to just measure the whole perimeter length, but then cannot use the special feature area. Would it be acceptable to use the same levels for both models then?
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
August 15, 2014 - 2:55 pm
if it does not fit a category I would model it identically in both.