Post a question or comment
Credit Filters
Minimum Energy Performance
Filter by location
Forum
Topic
Replies
Recent

ASHRAE 90.1 Lighting Power Densities - Residential Buildings

NC-2009 EAp2:Minimum Energy Performance
posted by  Maya Karkour  on 

Dear all, I was wondering how I can find the Lighting Power Densities for Residential Buildings in ASHRAE 90.1-2007. The 2 tables (Building Area Method & Space-by-Space) do not include catego

3
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Tue Aug 26, 2025, 1:23 pm

Process or non-process? Kitchen Hood Exhaust and Makeup Air

NC-2009 EAp2:Minimum Energy Performance
posted by  Matt Scott  on 

I thought I recalled reading that the HVAC energy related to a commercial kitchen hood was considered Process Energy.

7
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Thu May 29, 2025, 10:33 pm

ASHRAE 90.1-2007 Lighting Power Density

NC-2009 EAp2:Minimum Energy Performance
posted by  Arub Vijay  on 

Dear All, I have a doubt regaridng the LPD requirements for LEED projects. I am doing a Hotel project and would like to know if its mandatory to comply with Table 9.5.1 and Table 9.6.1 for LPD.

5
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Wed Apr 2, 2025, 9:45 pm

Exceptional calculation method application.

NC-2009 EAp2:Minimum Energy Performance
posted by  FABIO VIERO  on 

Under ASHRAE 90.1 – G2.5, can we avoid to use a workaround to detail a HVAC system feature which could involve an energy saving, therefore avoid to do an exceptional calculation method, if we prefe

7
Wed Apr 2, 2025, 9:26 pm

Modeling 100% Fresh Air Casino Floor in LEED v4.1

NC-2009 EAp2:Minimum Energy Performance
posted by  Kathy Collins, LEED AP , WELL AP, CxA BE Cx  on 

I am working on a hotel project where the ground floor is entirely dedicated to a casino. This casino floor is served by 8 AHUs, all supplying 100% fresh air.

2
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Thu Feb 20, 2025, 6:21 pm

Existing envelope

NC-2009 EAp2:Minimum Energy Performance
posted by  Sandra Holmström  on 

We have a project that is a major renovation of an existing building.

3
Sustainability Manager
Conserve Solutions- Riyadh, Kingdom of Saudi Arabia
LEEDuser Basic Member
1 thumbs up
Tue Feb 4, 2025, 3:23 pm

Modeling Electric Unit Heater

NC-2009 EAp2:Minimum Energy Performance
posted by  Nishank Shah  on 

I have to model electric unit heaters in HAP for spaces like Stairs, Trash rooms, Vestibules etc.

7
Default Avatar
LEED Green Associate
Peter Basso Associates
LEEDuser Basic Member
0 thumbs up
Mon Jan 13, 2025, 4:33 pm

Plug Load Exemption

NC-2009 EAp2:Minimum Energy Performance
posted by  Kim Lombard  on 

Has anyone ever gotten or heard about a plug load exemption for projects that demonstrate energy savings but due to extreme plug loads (over 60%) cannot meet the prerequisite 10%?

7
HVAC DESIGN ENGINEER
IES Consulting
LEEDuser Basic Member
17 thumbs up
Wed Aug 28, 2024, 7:20 pm
13
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Mon Jun 17, 2024, 2:54 pm

Energy Modeling using “HAP”

NC-2009 EAp2:Minimum Energy Performance
posted by  Muzamil Rafique  on 

I am doing the energy model for a project.

9
HVAC DESIGN ENGINEER
IES Consulting
LEEDuser Basic Member
17 thumbs up
Tue Mar 26, 2024, 11:46 pm