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Baseline HVAC Modelling - System 8, Electric Resistance Heating, and Heat Recovery (ASHRAE 90.1‑2010 Appendix G)

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

Hi All,

We are modelling a commercial tower under ASHRAE 90.1‑2010 Appendix G. The proposed design includes:

1
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
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Fri Nov 14, 2025, 4:13 pm

Baseline system for spaces served by Make up air unit with gas heat

NC-v4 EAp2:Minimum energy performance
posted by  Rajat Wadhwa  on 

Hi , I am working on a 100, 000 sqft office building with 50% of the spaces being storage which are served by MAU with gas heat, looking at the baseline system it comes with system 5 VAV with rehea

2
Wed Oct 29, 2025, 9:57 am

Modeling Process Hot water

NC-v4 EAp2:Minimum energy performance
posted by  Rajat Wadhwa  on 

Hi, I am working on a test and reliability manufacturing facility, where we are using close to 65,000 gals of water for process load, what should be a good assumption to figure out how much of that

0

LEED Certification of a Central Utility Plant Building

NC-v4 EAp2:Minimum energy performance
posted by  Eric Dixon  on 

My team is designing a Central Utility Plant building that will house a DES which will serve several campus buildings thermal energy demand.

0

ASHRAE 90.1:2010 - Manual or Partial Auto to 50%

NC-v4 EAp2:Minimum energy performance
posted by  André Harms  on 

The requirement states that “Any automatic control device required … shall either be manual on or shall be controlled to automatically turn the lighting on to not more than 50% power”

3
LEED Fellow
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Thu Sep 11, 2025, 1:31 pm

Baseline HVAC System accordint Table 6.8.1

NC-v4 EAp2:Minimum energy performance
posted by  Paula Hernandez  on 

Hello, I am modeling a Baseline System 2, PTHP and a doubt has arrised:

1
Sustainability Manager
Conserve Solutions- Riyadh, Kingdom of Saudi Arabia
LEEDuser Basic Member
1 thumbs up
Fri Sep 5, 2025, 5:05 pm

Clarification and Application of LEED v4 for District Energy Systems Using the Large-Scale DES Calculator

NC-v4 EAp2:Minimum energy performance
posted by  G.J. Teunissen  on 

I am working on a building project in the Netherlands that will utilize district heating.

0

Schedule for Lighting, Occupancy, & Plug Loads

NC-v4 EAp2:Minimum energy performance
posted by  junaid naseer  on 

We are working on a Hospital Project outside USA and we are going though option 1 i.e. whole building energy simulation.

5
LEED Fellow
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Thu Aug 28, 2025, 4:38 pm

According to ASHRAE 90.1, Is it mandatory to install occuppant sensors in electrical and mechanical rooms?

NC-v4 EAp2:Minimum energy performance
posted by  Sara BENLOUBA  on 

According to ASHRAE 90.1 / Section 9.4.1.2 , Do we have to install occupant sensor or a timer switch in electrical and mechanical rooms? 

 

Thanks, 

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Thu Aug 28, 2025, 12:50 pm
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L&T Construction
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Wed Aug 27, 2025, 1:55 pm