FAQs about EAp2 :

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?

Is it acceptable to model a split-type AC with inverter technology compressor as a heat pump, like modeling VRF?

Can the Trace 700 'LEED Energy Performance Summary Report' by uploaded to LEED Online in lieu of the Section 1.4 tables spreadsheet?

A portion of our building envelope is historic. Can we exclude it from our model?

Which baseline HVAC system do I use if my building has no heating or air conditioning?

For an existing building, do I need to rotate the model?

Our project has a diesel backup generator. Should we include it in our energy model?

Our project has a large process load—75%. Despite our efforts to make an efficient HVAC design, the cost savings are minimal. What can we do to earn this prerequisite and be eligible for LEED certification? Is there any flexibility in how we model the p

Can SHGC be higher in the proposed than in the baseline model?

Our process load is higher than 25%. Do we have to justify that?

Do I need to justify the electrical and fuel rates I am using in my model?

Our local code references ASHRAE 90.1-2010. Should I use that for my documentation, or 90.1-2007?

Can I claim exterior lighting savings for canopy lighting even though a baseline model cannot include shading elements?

The project is built on a site with existing exterior lighting installed. How should this be accounted for?

Can mezzanines open to floors below be excluded from the energy model?

How do I provide a zip code for an international location?

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Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Interpreting CIR#1712

Dear All, I have a question in modelling the lighting power density for high-rise residential development. Please see below extract from CIR#1712: ""Dwelling units are excluded from the allowable lighting power density. For EA credit 1, the exception listed in Table G3.1.6 states that lighting in multifamily guest rooms which are connected via receptacles and are not shown on the building plans should be modeled identically in the Baseline building and Proposed building simulations, but should be excluded (in post-processing) when calculating the Baseline building performance and Proposed building performance."" Does it mean: 1) the LPD for both baseline and design shall be identical, and equal to 0.7W/sf. 2) The light consumption shall be ignored when calculating the energy saving. That is, the lighting power only consider as a heat source and reflect in cooling loading.

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Tue, 01/15/2013 - 10:26

second one... to claim saving refer energy star high rise simulation guidelines

Tue, 01/15/2013 - 14:36

Here is the link to the simulation guidance for residential lighting - http://new.usgbc.org/resources/energy-star-multifamily-high-rise-simulation-guidelines-v10-eap1-alternative-compliance-pa

Thu, 01/17/2013 - 07:21

thank you very much! So does it mean the process load could be less than 25% of total energy consumption? as long as the model built in accordance with section 3.13.

Thu, 01/17/2013 - 14:39

Model the non-regulated process loads as accurately as possible. Basically ignore the 25% issue until you are done. Once you are done if you are under 25% explain your assumptions to justify why you are under.

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