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PV Degradation Losses overtime

NC-v4 EAc5: Renewable energy production
posted by Michael Keohane on Jan 19, 2021, 10:42 am


I am looking to find out if when completing PV annual output calculations for a new onsite installation that only conversion and transmission losses based the first year operation meets...

Where to find Evapotranspiration Rates of a location?

NC-v4 WEc1: Outdoor water use reduction
posted by Zirjay Villanueva on Oct 27, 2020, 10:54 pm

In the v4_Outdoor Water Use Reduction Calculator, there is a tab where you need to key in the Monthly Rainfall and Evaportranspiration Rate (ETo) for the location of the project. 


Last reply: Afogreen Build, Nov 18, 2020, 5:27 am

Non-continuous floors

CI-v4 MPR2: Must use reasonable LEED boundaries
posted by David Edenburn on Nov 15, 2018, 2:10 am

I have seen this question asked but not answered. We have a client who will renovate three floors of an office building; typical CI project. The issue is that they will do floors 7, 17, 18....

Last reply: David Hubka, Oct 24, 2020, 9:02 am

Reg: Energy Modelling Requirement Scenarios for DC under V4

Data-Centers-NC-v4 EAp2: Minimum Energy Performance
posted by Rajesh Balachander on Jun 29, 2020, 12:05 am

Hi All

Can anyone clarify me this if my understanding is right? (Reference: https://www.usgbc.org/credits/reqea1r18-0?view...

South-East Asia Alternative Compliance Path for ASHRAE 90.1-2010

Data-Centers-NC-v4 EAp2: Minimum Energy Performance
posted by dianti avo on May 27, 2020, 12:14 am


Is there any Alternative Compliance Path for ASHRAE 90.1-2010 (mandatory provision) for South-East Asia region?


Last reply: Marcus Sheffer, Jun 5, 2020, 10:19 am

Big project site = more than 400m walking distance to nearest bus stop, but there is a shuttle service within the property.

NC-v4 LTc5: Access to quality transit
posted by Zirjay Villanueva on Apr 20, 2020, 3:33 am

We're working on a project with a big project site, and the nearest bus stop is more than 400m...

LEED 4.1 NC Energy and Atmosphere

NC-v4.1 EAc5: Renewable energy
posted by Britt Valdez on Feb 21, 2020, 11:03 am

Hi, related to LEED 4.1 NC Energy and Atmosphere requirements: When purchasing Renewable Energy Credits (RECs) and/or carbon offsets, there is a one-year term option and a fifteen-year term...

Energy Star Rated Power Value and Computation

CI-2009 EAc1.4: Optimize energy performance - equipment and appliances
posted by Gene Harn Lim on Jan 2, 2020, 3:56 am

We are computing the Energy Star Equipment table and struggle to source the equipment's rated power. A few questions: 

1. The rated power is defined as the maximum power the equipment can...

Will RECs from TIGR fulfill the credit requirement for EAc4 LEED CI v2009?

CI-2009 EAc4: Green Power
posted by Rowena Rawte on Nov 25, 2019, 11:23 pm

For a project in Singapore the client are planning on purchasing Green RECs from TIGR. 

The Tradable Instrument for Global Renewables (TIGR) Registry is an online platform for tracking and...

3 buildings that connected via link-bridge

LEED Guidance for Campuses and Multiple Buildings
posted by Michael Wahjudi on Mar 22, 2017, 12:23 am

Hi all. Wanted to seek your comments on consideration of our developments as "single building" so it can fit into one LEED certification. Our development is consists of 3 buildings that connected...

Last reply: David Hubka, Apr 10, 2019, 7:34 am