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

Energy coming from a off-site own renewable source

Our project involves a production plant for pasta and support facilities in Santiago, Chile. Process loads exceed regulated loads, in consequence it is anticipated that process energy efficiency improvements will comprise the majority of energy savings for the project. In addition, the company owns a third of a 5 MW low impact renewable energy plant –a small run-off-the-River hydropower plant which will deliver 1.6 MW to our project. The river is nearby but the plant is off the site for a couple of miles. The plant will deliver renewable energy for approximately a 26% of the energy our project needs. This power comes through a dedicated line, directly to our project were it is used to offset the grid power. We have considered the possibility of On-Site renewable energy since the online form has an off-site/backup option. But we hesitate because the renewable source is far from the site because the river does not pass close to the site. However we think that this feature meets the intention of the credit which is the use of self-supply renewable energy to reduce environmental and economic impacts associated with fossil fuel energy use. The main issue, in any case, on with we are most interested is in the synergy with the EAp2 Minimum Energy Performance because we are effectively reducing environmental and economic impacts associated with excessive energy use; this would really help our energy intensive project to comply with this prerequisite. Is it possible to account this energy on the energy model as energy savings?

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Fri, 08/12/2011 - 19:40

I would take a closer look at the District Energy System Guideline, which is to be applied to projects, which get supplied by energy per a district energy plant. That allows you to account for upstream system efficiency. I haven't applied it yet for the production of electricity only but it applies for sure to co-generation plants (Combined heating and power). Maybe that will help you find an answer.

Mon, 09/19/2011 - 17:26

There have been exceptions granted in the past of an off-site renewable system to count. For example, there have been projects which use landfill gas that is generated nearby (but off-site) and piped to the site. Sounds like your situation could be similar. Make sure that the hydro plant qualifies as a renewable under EAc2. If it counts for EAc2 it will count for EAp2/EAc1.

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