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DES methodology

NC-v4 EAc2: Optimize Energy Performance
posted by Ricardo Sá on Oct 7, 2020, 5:47 am

Dear All,

we’re currently working on LEED certification projects with the following characteristics:

  • two independent buildings located in the same campus. This will...

Last reply: Tyler Thumma, Oct 20, 2020, 2:09 pm

Off-site renewables calculated in Optimized Energy Performance in LEED v4

NC-v4 EAc2: Optimize Energy Performance
posted by Deb Favaretto on Apr 21, 2020, 3:10 pm

Hi,

Under LEED v4 for BD+C NC, can we count the energy savings from off-site renewables in our Optimized Energy Performance (Option 1) calculations to potentially claim maximum 18 points...

Last reply: Jeff Ross-Bain, PE, LEED Fellow, Sep 25, 2020, 5:55 pm

Proving Savings for a Utility-Owned Power Plant

NC-v4 EAc2: Optimize Energy Performance
posted by Michael Hill on Sep 17, 2020, 11:36 am

I am wondering if anyone has any thoughts on how/if energy savings could be demonstrated for a Utility-Owned Electric Power Plant (just the plant itself). Obviously the majority of the energy...

Last reply: Marcus Sheffer, Sep 18, 2020, 3:38 pm

Multiple Pilot Credit (EApc111 7 EApc95) Implementation on EAc2

NC-v4 EAc2: Optimize Energy Performance
posted by Rahil Shah on Jul 29, 2020, 12:06 pm

Hello Everyone, 

I hope everyone is doing well and staying safe.

I have a LEED-NC v4 project. For energy performance prerequisite and credit (EAp2 and EAc2), we are using...

Last reply: Marcus Sheffer, Jul 29, 2020, 1:48 pm

Climate Data for Energy model-which year to use?

NC-v4 EAc2: Optimize Energy Performance
posted by Stephan Zweig on Jul 29, 2020, 4:03 am

 Dear Leed Users,

For the location of the project I have found a lot of years of climate data? At the beginning I had only the year 1979, but now I found the years from 2009 -2019. Which...

Last reply: Marcus Sheffer, Jul 29, 2020, 9:34 am

Min outside air requirements for unoccupied spaces/buildings- energy modeling

NC-v4 EAc2: Optimize Energy Performance
posted by Abhinay Sharma on Jun 9, 2020, 5:30 pm

Hi all,

We have an unoccupied building (sub station) that has corridors, toilet etc for very occasional maintenance occupancy. 

The makeup air unit/DOAS system provides enough OA to...

Last reply: Tyler Thumma, Jun 10, 2020, 3:12 pm

IES thermal block and baseline model with system 6

NC-v4 EAc2: Optimize Energy Performance
posted by Ying Lindsey on Jan 27, 2020, 8:30 pm

Dear all, 
I need your professional opinion about a project that I am currently working on.
The HVAC zones and zone groups tree is like: Group 1>A(5)>A.1(Master), A.2, A.3, A.4...

Last reply: , May 28, 2020, 5:41 pm

Process HVAC modeling approach

NC-v4 EAc2: Optimize Energy Performance
posted by Abhinay Sharma on May 27, 2020, 2:56 pm

Hi, we are consisering options for our high process load building in meeting the minimum requirements of the energy credit. 

We have spaces that have a high heat load, and non-mechanical...

Last reply: Cam Fitzgerald, May 28, 2020, 8:58 am

Economizer for VRF and other systems as per ASHRAE 90.1-2010 requirement

NC-v4 EAc2: Optimize Energy Performance
posted by Micaela Smulevich on May 12, 2020, 2:58 pm

when working With Roof Tops machines and commercial split system or water chiller with air handling units I consider the economizer is required as per ASHRAE section 6.5.1, is this correct? ...

Last reply: Marcus Sheffer, May 14, 2020, 12:49 pm

Can COMcheck be used for EAc2 compliance?

NC-v4 EAc2: Optimize Energy Performance
posted by Aditya Potipireddi on May 13, 2020, 1:35 pm

Hello All,

I have an architect telling me that a project in Miami, FL used COMcheck to show compliance with EA Credit Optimize Energy Performance. Is this possible? I would assume no,...

Last reply: Christopher Schaffner, May 13, 2020, 4:27 pm