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LEED and ASHRAE Requirements for an Existing Building Model

NC-2009 EAc1: Optimize Energy Performance
posted by Tom Nichols on May 7, 2011, 8:51 am

We are modeling a new building for EAc1. There is a small existing building attached to this new building. It is less than 9% of the area of the two buildings combined. Part of the interior...

Last reply: Marcus Sheffer, Apr 20, 2021, 4:45 pm

Holes and vents modelling in Baseline

NC-2009 EAc1: Optimize Energy Performance
posted by Santiago Zarate on Dec 15, 2020, 11:38 am

We are certifying a project located in a city in Colombia with a tropical climate with average temperatures above 23°C all year round. The project takes advantage of this temperature and only...

Natural Ventilation: LEED Energy modeling

NC-2009 EAc1: Optimize Energy Performance
posted by Sadaf Alam on Jul 19, 2019, 11:27 am

Dear all,

We have an office building which is predominantly cooled by natural ventilation. Natural ventilation is being controlled by the operable windows through BMS. We are doing the...

Last reply: Tyler Thumma, Sep 12, 2019, 4:32 pm

Gas Fired Generators for Backup/Emergency

NC-2009 EAc1: Optimize Energy Performance
posted by Fatou Jabbie, | BSc. Comp. Sci. | MSc. Sustainability Management | LEED AP BD+C on Jun 26, 2019, 1:05 pm

Hello,

 I'd like advice on how to model high pressure gas to fuel three 300 kW backup generators. There is also subsequently piping in natural gas from the local utility used as fuel for...

Last reply: Marcus Sheffer, Jun 27, 2019, 1:21 pm

EWH ASHRAE Compliance

NC-2009 EAc1: Optimize Energy Performance
posted by Osama Touni on Mar 24, 2019, 6:09 am

Hi 

Regarding Electric water Heater, is there any equation to calculate the EWH energy factor to compare the result with the equation of ASHRAE 90.1-2007...EFmin = 0.97* − (0.00132 × V...

Last reply: Marcus Sheffer, Mar 26, 2019, 9:56 am

Slab-on-grade Vs Slab-below-grade

NC-2009 EAc1: Optimize Energy Performance
posted by Anna Korinkova on May 17, 2018, 8:11 am

We have an office building project with garages going 4 storeys underground. The building foundation slab is about 16m deep. Should this slab still be considered for 'slab-on-grade' (even if it...

Last reply: Marcus Sheffer, Oct 9, 2018, 3:51 pm

How to use Title 24 2016 to comply with LEED 2009 EAc1

NC-2009 EAc1: Optimize Energy Performance
posted by Bo Yi on Sep 11, 2018, 2:09 pm

Hi,

I am doing a LEED 2009 project. The project is in California and complied with Title 24 2016. I am trying to use title 24 to comply the LEED EAc 1. I have two questions.

1. LEED...

Last reply: Marcus Sheffer, Sep 11, 2018, 2:58 pm

Adiabatic Humidification

NC-2009 EAc1: Optimize Energy Performance
posted by Mike Oliva on Aug 9, 2018, 6:19 pm

I'm trying to wrap my head around modeling an adiabatic humidification system for our project that I can't directly model within TRACE that I know of.  I'm planning to model the humidification...

Last reply: Marcus Sheffer, Aug 10, 2018, 12:08 pm

Renewables off-site

NC-2009 EAc1: Optimize Energy Performance
posted by Ricardo Sá on Apr 5, 2018, 1:27 pm

Hi,

we are working in a project pursuing LEED certification (NC v2009).

The owner wants to achieve the Platinum Level and that implies an area of PVs larger than the area available...

Last reply: Marcus Sheffer, Aug 3, 2018, 1:35 pm

LEED Energy Modeling- Credits EAp2 and EAc1

NC-2009 EAc1: Optimize Energy Performance
posted by Andrew Buck on Jul 6, 2018, 9:39 am

We are working on a Hotel project in Chicago, Illinois (USA) with LEED NC v2009.  Is my understanding correct in that for credit EAp2 you can follow LEED v.4, and for EAc1 you can follow LEED v....

Last reply: Marcus Sheffer, Jul 6, 2018, 11:32 am