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Fresh air for toilet vestibule according to ASHRAE 62.1-2010

CS-2009 EAp2: Minimum Energy Performance
posted by Przemysław Rejczak on Apr 8, 2019, 7:10 am

Dear Everyone

I am writing regarding to fresh air requirements for Baseline Case. According to new ASHRAE 90.1-2010 requirement it should be modeled according to rating authority or...

Last reply: Marcus Sheffer, Apr 10, 2019, 3:36 pm

G3.1.1 | Exception b (40 equivalent full-load hours per week)

CS-2009 EAp2: Minimum Energy Performance
posted by Danilo Ilic on Apr 1, 2019, 5:03 am

From what I could see in related posts, "40 equivalent full-load hours per week" are plainly interpreted as 40 working hours and without any connection to thermal load and I am...

Last reply: Danilo Ilic, Apr 1, 2019, 9:39 am

Interior lighting in dwelling units

CS-2009 EAp2: Minimum Energy Performance
posted by Ashish Nautiyal on Mar 22, 2019, 3:47 pm

Hello All,

I got the following comment from the LEED reviewer.
Based on the Energy Simulation Report (Annexure-1), it appears that interior lighting savings are being taken for...

Last reply: Marcus Sheffer, Mar 25, 2019, 2:09 pm

Proof on Exceptional Calculations of Energy Modelling

CS-2009 EAp2: Minimum Energy Performance
posted by Kathy Wong on Jan 7, 2019, 2:13 am

Our LEED project has adopted lighting control as energy-saving strategy for parking garage and documented as exceptional calculation in EAp2 and EAc1. Soon we received USGBC's comment asking for...

Last reply: Kathy Wong, Jan 8, 2019, 4:48 am

(Sample) Lease Agreement

CS-2009 EAp2: Minimum Energy Performance
posted by Charalampos Giannikopoulos on Feb 15, 2015, 11:33 am

If no tenants have been identified can the project owner claim relevant energy saving from reduced lighting power...

Last reply: Marcus Sheffer, Dec 20, 2018, 5:10 pm

LPD for covered (open) mechanical room

CS-2009 EAp2: Minimum Energy Performance
posted by Jorge López de Obeso on Nov 21, 2018, 5:22 pm

We're working on an energy modeling configuration and  filling the Section 1.4 Table: The project includes a mechanical room on the roof floor which is not entirely unclosed, it has a steel deck...

Last reply: Marcus Sheffer, Nov 23, 2018, 1:21 pm

Proposed Building's HVAC system

CS-2009 EAp2: Minimum Energy Performance
posted by Luis Andrade on Jun 22, 2018, 9:42 am

Hi everyone,

I'm modeling an office building under LEED CS v2009. The scope of C&S includes a centralized cooling and heating system (air cooled chilers and heat pumps), ventilation...

Last reply: Marcus Sheffer, Oct 24, 2018, 3:02 pm

Tenants HVAC System Type

CS-2009 EAp2: Minimum Energy Performance
posted by Amgad Khattab on Aug 31, 2011, 9:26 am

We are modeling a Core & Shell office building where the HVAC system is in the tenant scope. we are only delivering chilled water and outdoor air to the tenant areas. We are specifying fan...

Last reply: Marcus Sheffer, Oct 24, 2018, 10:44 am

Modeling a DOAS Serving Shell Space

CS-2009 EAp2: Minimum Energy Performance
posted by Cory Duggin on Sep 5, 2018, 12:56 pm

We have a fully designed DOAS that provides ventilation to the core and shell spaces of the building.  Since the DOAS is fully designed, can we have it provide the ventilation to the shell spaces...

Last reply: Cory Duggin, Sep 7, 2018, 12:11 pm

heat recovery in baseline

CS-2009 EAp2: Minimum Energy Performance
posted by Francesco Passerini on Aug 27, 2018, 6:30 am

I'm using  v2009_Minimum Energy Performance Calculator_v09.xlsm

In the tab "Air-Side HVAC" it specifies that energy recovery is required "For Baseline, any individual systems where supply...

Last reply: Marcus Sheffer, Aug 27, 2018, 3:39 pm