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WE Prerequisite 1

EBOM-v4 WEp1: Indoor water use reduction
posted by Alice Andersen on Mar 26, 2020, 11:26 am

I have a lavatory faucet that are automatically controlled (sensor control) and a flow rate of 5 l per minute. In accordance to the LEED manual the baseline is 1.9 l per minte.

When the...

C+S Building removing HVAC scope

CS-2009 EAp1: Fundamental Commissioning of Building Energy Systems
posted by Karina Cerda on Jul 5, 2018, 6:39 pm

Hi there!

We have a situation, where a developer has a Core+Shell building under construction and the original design included to install X amount of Fan coil/Condenser units (VRF system...

Last reply: Scott Bowman, Mar 26, 2020, 11:24 am

Qualifying compliance to Extreme Heat design parameters

Pilot-Credits IPpc99: Design for Enhanced Resilience
posted by Jolene McLaughlin on Mar 25, 2020, 5:50 pm

Does anyone have a view of what would qualify to meet some of the subjective requirements in the Extreme Heat design measures? Statements like "High levels of insulation" and "lower Solar Heat...

No separate meter for water performance

EBOM-v4 WEc4: Water metering
posted by Phung NGUYEN on Mar 26, 2020, 3:32 am

Our Office located in a group building of manufacturing was having one main meter that measures the total potable water. 

So, we don't have the permanent water meter for the Office. Thus,...

Mixed-use in LEED Core & Shell

LEED Rating System Selection
posted by Anke Koch on Nov 14, 2013, 7:25 am

our project is a new mixed-use building (residential / retail / offices) in the center of Berlin, Germany.

Is it correct to use the system LEED NC / C&S or what system would...

Last reply: Tristan Roberts, Mar 26, 2020, 8:56 am

Energy modeling, Chiller at AHRI conditions

NC-2009 EAp2: Minimum Energy Performance
posted by Santiago Sánchez Sánchez on Mar 10, 2020, 1:17 pm


I’m modeling a building which has water-cooled chillers.

It comes down that the provider has sent us the chiller specs, and the chiller efficiency was tested at no AHRI...

Last reply: Tyler Thumma, Mar 25, 2020, 3:15 pm

Duct sealants and wallpaper emissions testing

CI-v4 EQc2: Low emitting materials
posted by Kathleen Gaffney on Mar 25, 2020, 2:54 pm

Are duct...

Option 1 Warehouse Exceptions for Multi-occupant spaces?

Warehouses-NC-v4 EQc6: Interior lighting
posted by Sara Greenwood on Mar 25, 2020, 2:24 pm


It seems unreasonable or energy efficient for the multi-occupant spaces in a storage warehouse to meet the criteria for Option 1 in this credit. Are there any exceptions for...

Heating coil as a preheat in DOAS with VRV

CS-v4 EAp2: Minimum Energy Performance
posted by Przemysław Rejczak on Mar 4, 2020, 12:00 pm

Dear Everyone

I am quite confused because I got a review comment recently where Reviewer suggests to exclude preheat coils from Baseline System 7. 

It is a project located in Poland...

Last reply: Tyler Thumma, Mar 25, 2020, 1:30 pm

Automatic Receptacle Control

NC-v4 EAp2: Minimum Energy Performance
posted by Jan Hesse on Aug 7, 2015, 6:36 am

ASHRAE 90.1-2010 8.4.2 states, that 50% of all 125 volt 15- and 20-Ampere receptacle outlets in private offcies, open offices and computer classrooms shall be automatically switched off when the...

Last reply: Marcus Sheffer, Mar 25, 2020, 11:58 am