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Baseline systems exception: A system for the kitchen in all electricity heating source

NC-v4 EAc2: Optimize Energy Performance
posted by Mohamed Elagiry on May 20, 2019, 11:51 am

if we have system 6 as The main system which has the electricity as the main heating source, we have an exception for the kitchen according to G3.1.1 b which state to use system 5 or 7 for the...

Last reply: Marcus Sheffer, May 20, 2019, 5:14 pm

Heat pump and photovoltaics as District Energy System

NC-v4 EAc2: Optimize Energy Performance
posted by Giulia Guglielmo on May 20, 2019, 10:40 am

Building A is part of a complex of four buildings, but only the building A is subject of LEED certification. The building heating, cooling and service water heating system is served by a heat...

Energy Model AND LEED Excel sheet required

NC-v4 EAc2: Optimize Energy Performance
posted by Brandon White on May 10, 2019, 9:57 am

Are both required to be completed?  If so, one has to enter all the building information into compliant energy modeling software AND into the LEED Excel sheet?  That's ridiculous. 

Last reply: Sarah Gudeman, May 11, 2019, 12:47 am

Solar PPAs and Calculating Annual Energy Cost Reductions

NC-v4 EAc2: Optimize Energy Performance
posted by Joshua Radoff on Aug 12, 2015, 5:00 pm

works. There was a thread in one of the other LEED User forums recently on this subject. Log in or register to post comments Joshua Radoff Senior Vice President, LEEDuser Primary Author, WSP, Built Ecology...

Last reply: Marcus Sheffer, May 10, 2019, 3:05 pm

Shading by fixed construction elements- take into account for the baseline model?

NC-v4 EAc2: Optimize Energy Performance
posted by Sarah Leenknegt on Apr 16, 2019, 9:38 am

Hi

Summary from Appendix G:

- self-shading is not allowed to be modeled in the baseline

- manual shading devices are not required to be modeled in the baseline

-...

Last reply: Marcus Sheffer, Apr 16, 2019, 12:12 pm

Semiheated

NC-v4 EAc2: Optimize Energy Performance
posted by Sarah Leenknegt on Apr 15, 2019, 9:55 am

Hi

I have not yet found a clear description of the way of modelling a semiheated zone, so I will attempt to summarize. Please correct/append where needed.

- Exterior surfaces for...

Last reply: Marcus Sheffer, Apr 15, 2019, 2:38 pm

Savings from economizers for boilers for manufacturing proces

NC-v4 EAc2: Optimize Energy Performance
posted by Thomas Tan on Mar 14, 2019, 5:24 am

Dear All,

Our design team want to propose economizers for our current manufacturing system to save energy cost from boilers. Can we claim this savings for our...

Last reply: Marcus Sheffer, Mar 19, 2019, 12:49 pm

Baseline System Selection-DES Guidelines

NC-v4 EAc2: Optimize Energy Performance
posted by Harshana Thimmanna on Mar 5, 2019, 1:59 pm

Hi All,

I am working on 137,000 SF Recreation Center (ARC) expansion project which is LEED v4 New Construction+ Renovation project. The building is partially served by a 250 TON Heat...

Last reply: Marcus Sheffer, Mar 8, 2019, 12:32 pm

DOAS & VRF for LEED in EnergyPro

NC-v4 EAc2: Optimize Energy Performance
posted by Joel Embury on Feb 21, 2019, 2:20 pm

I’ve been working on a LEED project with VRF & DOAS in San Jose, CA.  For the LEED Energy Model, EnergySoft suggested attaching the DOAS to 10 sq. ft. dummy rooms, and then "connecting" the...

Last reply: Marcus Sheffer, Mar 8, 2019, 12:02 pm

Process energy clarification

NC-v4 EAc2: Optimize Energy Performance
posted by MAUDE PINTAL on Feb 26, 2019, 11:01 am

Hi,

Is heated sidewalk considered as...

Last reply: Marcus Sheffer, Feb 26, 2019, 11:24 am