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Process Chiller in a Lab Building: 90.1-2019 Baseline vs. Proposed

NC-v4 EAp2:Minimum energy performance
posted by  Kristy M. Walson  on 

We're working on a 35,000 SF lab building on a campus district cooling loop. The baseline system type is #5, so there's no chilled water in the baseline.

1
Fri Mar 28, 2025, 2:41 pm

IPpc100 Passive Survivability and Functionality during Emergencies

NC-v4 INc1:Innovation
posted by  Noriko Nagazumi  on 

 

Hi,

3
Wed Mar 19, 2025, 9:51 pm

Indoor Water Use Calculator malfunction

NC-v4 WEp2:Indoor water use reduction
posted by  Susan Di Giulio  on 

Dear LEED friends,

It seems there is a glitch with the Calculator and Excel.  Has anyone had the error on the Summary page show up, "Run time error '1004'?

18
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Gwenedd Murray
owner
re:4m consulating
LEEDuser Basic Member
3 thumbs up
Tue Mar 18, 2025, 2:24 am
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How to show the GHG Emission calculation for the new Energy update

CI-v4 EAp2:Minimum energy performance
posted by  Nagaraj Sankar  on 

Dear Kudos,

4
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Anurag Ghosh
Assistant Sustainability Manager
L&T Construction
LEEDuser Basic Member
2 thumbs up
Mon Mar 17, 2025, 12:35 pm
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Regd. Switching to LEED V4.1 from LEED V4 2024 update

NC-v4 EAc2:Optimize energy performance
posted by  Anurag Ghosh  on 

Hello All,

We have a project registered under LEED V4 2024 update. Can we switch to LEED V4.1 for minimum energy performance & optimize energy performance credit?

1
Mon Mar 17, 2025, 2:12 pm
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Regd. percentage improvement in greenhouse gas emissions beyond ASHRAE 90.1-2010 Appendix G

NC-v4 EAc2:Optimize energy performance
posted by  Anurag Ghosh  on 

Hello All,

Can anyone help me understand how do i calculate the GHG emissions for a project as per ASHRAE 90.1 2010 appendix G. 

Also, what does the below statement mean:

7
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4461 thumbs up
Sun Mar 16, 2025, 2:28 am

How long are EPDs valid for?

NC-v4 MRc2:Building product disclosure and optimization - environmental product declarations
posted by  Samantha Lee  on 

Hi all.

4
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Tristan Roberts
Founder & Community Director
Metricorps
LEEDuser Expert
7781 thumbs up
Sat Mar 15, 2025, 7:18 am

Cooling Efficiency of packaged units larger than 60 tons

NC-v4 EAp2:Minimum energy performance
posted by  Dave Hubka  on 

This week I learned that 60-ton packaged units are not provided with an EER.

 

5
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Jamy Bacchus
Principal
ME Engineers
LEEDuser Basic Member
30 thumbs up
Fri Mar 14, 2025, 4:42 pm
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Regd. pressure drop adjustments in baseline fan power calculator

NC-v4 EAp2:Minimum energy performance
posted by  Anurag Ghosh  on 

Hello All,

6
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Anurag Ghosh
Assistant Sustainability Manager
L&T Construction
LEEDuser Basic Member
2 thumbs up
Thu Mar 13, 2025, 12:36 pm

External Signage with internal lighting on construction site.

CS-v4 SSc6:Light pollution reduction
posted by  Marine Petrosyan  on 

Hi, All!

I would appreciate it if you could help me with the following question:

1
Thu Mar 13, 2025, 1:00 pm