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Baseline system Exhaust Air Energy Recovery and Heating Supply air, Preheat coil

NC-v4 EAp2: Minimum Energy Performance
posted by J.W. Shin on Nov 22, 2023, 3:01 am

Dear Collegue,

I have some questions for Baseline model's System control

The project has the baseline system (System-7...

Last reply: Sanket Sabale, Sep 25, 2024, 4:57 am

LEED NCv4: Minimum Energy Performance Prescriptive Path

NC-v4 EAp2: Minimum Energy Performance
posted by Shashank Singh on Sep 20, 2024, 6:20 am

Folks,

Some background: Working on a city hall project which is shooting for LEED silver. We are considering Option 2 Prescriptive for the minimum energy performance prerequisite. Option 2...

Last reply: Shashank Singh, Sep 23, 2024, 2:25 am

LEED Water Side Calculator for DES1

NC-v4 EAp2: Minimum Energy Performance
posted by elvin ruya on Sep 12, 2024, 5:06 pm

Hi,

I was wondering if anyone knows the requirements for the secondary pump controls under the...

Last reply: Tyler Thumma, Sep 19, 2024, 8:24 am

Reheating more than 30% at the VAV

NC-v4 EAp2: Minimum Energy Performance
posted by Dave Hubka on Sep 17, 2024, 12:29 pm

I am becoming involved with a project that is being designed to reheat more than 30% of the max cooling airflow rate at the...

Last reply: Dave Hubka, Sep 18, 2024, 11:28 am

LEED Documentation (MEPC) for Group Approach

NC-v4 EAp2: Minimum Energy Performance
posted by Apoorva Pradhan on Sep 4, 2024, 4:59 pm

Hello,

I am working on a project with two buildings that are pursuing the LEED Group approach. I have combined the annual consumption and costs for both buildings for the energy...

Last reply: Marcus Sheffer, Sep 5, 2024, 10:58 am

Domestic Water Booster Pump Energy in LEED

NC-v4 EAp2: Minimum Energy Performance
posted by Moses Chong on Aug 14, 2024, 9:42 am

Has anyone successfully claim energy saving with domestic water booster pump? These pumps are often huge and there're no diversity profiles that I know of. The closest profile is the service hot...

Last reply: Tyler Thumma, Sep 5, 2024, 8:38 am

How to determine Fan EFLH (Equivalent Full Load Hours)

NC-v4 EAp2: Minimum Energy Performance
posted by Michael on Aug 8, 2024, 3:24 am

Hi LEED experts,

In the MEPC file, I see the Fan EFLH is determined by dividing the annual fan consumption by the total fan power (kW) in the tab "Performance Output". Based on the MEPC...

Last reply: Tyler Thumma, Sep 5, 2024, 8:09 am

Heat pumps COP AHRI-rated in european project

NC-v4 EAp2: Minimum Energy Performance
posted by Alessandro Zuanon on Jul 25, 2024, 12:38 pm

Hi,

how can i do if my project's heat pump /chiller manufacturer doesn't provide efficiencies AHRI-rated?

I need to model with COP and EER at nominal and part load tested under US...

Last reply: Tyler Thumma, Sep 5, 2024, 7:52 am

Energy Modeling Software

NC-v4 EAp2: Minimum Energy Performance
posted by Marine Petrosyan on Aug 8, 2024, 10:45 am

Hi, All!

Can you please share what energy modeling software you have used so far?

Thank you!

Last reply: Apoorva Pradhan, Sep 4, 2024, 5:02 pm

Option 2 (prescriptive path) documentation?

NC-v4 EAp2: Minimum Energy Performance
posted by Erica Downs on Aug 19, 2024, 2:36 pm

I have a project attempting EAp2/c2 via the prescriptive pathway, Option 2, 50% AEDG.  The only "required documentation" listed in the Reference Guide is the completed AEDG tables, which seems...

Last reply: Marcus Sheffer, Aug 28, 2024, 3:34 pm