See LEEDuser’s guidance on NC-v4.1 EAc2 »
Post a question or comment
Credit Filters
Optimize Energy Performance
Filter by location
Forum
Topic
Replies
Recent
Default Avatar

Energy type ratio matching in baseline vs proposed

NC-v4.1 EAc2:Optimize Energy Performance
posted by  William Pichon-Roy  on 

Hi,

1
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Mon Dec 1, 2025, 7:06 pm
Default Avatar

Energy type ratio matching in baseline vs proposed

NC-v4.1 EAc2:Optimize Energy Performance
posted by  William Pichon-Roy  on 

Hi,

3
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Thu Oct 30, 2025, 4:29 pm

Any initial findings regarding Project Appendix G performance under v4.1 compared to v4 (or even v3)?

NC-v4.1 EAc2:Optimize Energy Performance
posted by  Joanna Switzer  on 

Hi all,

11
Sat Nov 2, 2024, 1:30 pm
Default Avatar

Clubhouse Building Type? Public Assembly or Non-Residential?

NC-v4.1 EAc2:Optimize Energy Performance
posted by  Junaid Mujahid  on 

A clubhouse project with amenities including: Gymnasium, Yoga/Aerobic Studios, Party Hall, Dining Hall, Lounge, Small Retail Stores, Prayer Rooms, Basement Parking should be categorised under which

9
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Wed Sep 18, 2024, 8:00 am
Default Avatar

Infiltration rate @ 75 Pa (ASHRAE 2016) vs. 4 Pa / 50 Pa (Design Builder Software)

NC-v4.1 EAc2:Optimize Energy Performance
posted by  Ziad Zeitoun  on 

Hello, 

ASHRAE 2016 specifies the infiltration rate of the building at 75 Pascals (2.03 L/s.m²).

1
Fri Dec 1, 2023, 2:44 pm
Default Avatar

Porch lighting included in building energy model?

NC-v4.1 EAc2:Optimize Energy Performance
posted by  Rachel Novick  on 

Our building has a large open-air porch that we use for parties. It has lights and ceiling fans.

1
Fri Sep 22, 2023, 3:22 pm

environmental attributes (e.g. REC’s) retained

NC-v4.1 EAc2:Optimize Energy Performance
posted by  Martin Maribo  on 

Can the purchase of environmental attributes be used to improve the Cost PCI points?

5
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Tue Sep 13, 2022, 2:57 am

Carbon emission for Electrical Energy and Natural gas

NC-v4.1 EAc2:Optimize Energy Performance
posted by  SAMY Chamy  on 

Dear Concern

Our project is located in Bangladesh and we are looking for carbon emissions per unit of electricity production and 1 m3 of natural gas usage.

 

0
Default Avatar

v4.1, and Photovoltaic VE

NC-v4.1 EAc2:Optimize Energy Performance
posted by     on 

We are working on a warehouse in Sunnyvale, CA.  We are confused with the results from the spreadsheet (v3), since we investigated removing the PV array, as a VE measure.  Site Energy, Co

2
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Mon May 23, 2022, 8:37 pm

Off Site Power Purchase Agreement to Claim Saving ??

NC-v4.1 EAc2:Optimize Energy Performance
posted by  SAMY Chamy  on 

Dear Concern:-

 

2
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Mon Apr 25, 2022, 4:35 am