FAQs about EAp2 :

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?

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?

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?

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Forum discussion

NC-2009 EAp2:Minimum Energy Performance

CHP Usage

Dear Sir:- we have Project in China it is a NC project We don't get Electricity from Government we use natural Gas Generator for Electricity Production. then we use Diesel Generator For Backup As per Leed Guideline in Credit EA PR 2 we claim saving Via CHP (Combined Heat & Power) The energy savings estimation compliance with LEED standards and the methodology are detailed in this chapter. As per cite given in the LEED reference guide for Green Building Design and Construction, Edition 2009. “In accordance with the performance rating method, the parameters of the calculation of the CHP benefits are as follows: The baseline buildings heating and cooling plant utilizes the backup energy sources of the design, or electricity if no backup source is present or specified. When all electricity and thermal outputs of the CHP are used within design building, the electricity produced is considered free, as is the produced thermal energy. The input fuel for the CHP and any additional purchased energy is charged to the design building” In this project the electricity required for building and factory operations is generated through Gas Generators. The following benefits can be acquired when using gaseous fuel for instead of liquid fuel: Supreme combustion efficiency No soot formation Low ignition temperature No smoke This is evident that use of gaseous fuel is energy efficient as well as cost effective way of electricity generation. There are two scenarios are made based on type of fuel used viz. base case and proposed case. The electricity generation through diesel fuel is formulated as base case as per the LEED reference guide and the electricity generation through Compressed Natural Gas is the design case. The explanation on unit cost establishment and energy simulation assumption are given in the succeeding sections. Note: The relationships between – Building operation is almost same throughout the year – load, demand and utility rate are insignificant. Therefore, the exceptional calculations were done on net annual basis. I need to Know Whether our Assumptions and Calculations are Correct

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Wed, 07/15/2015 - 14:15

Since the project is not grid connected, it appears that the baseline should be using diesel fuel to produce the electricity. Any fuel use that is directly used in the proposed case, for example, heating should be identical in the baseline.

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