Log in
Forum » EBOM-v4.1 EAp3

Equations and calc methods

EBOM-v4.1 EAp3: Energy Performance
posted by Ricardo Filho on Feb 21, 2023, 5:01 am

I am doing some research on LEED v4.1 O+M and I have a number of questions.
I am going to post them here (I know it is a lot) hoping someone knows the answer for a few of them, maybe.


Last reply: Saba Hajizadeh, Nov 10, 2023, 4:29 pm

Estimating Energy Performance Scores before registering a project

EBOM-v4.1 EAp3: Energy Performance
posted by Bob Snow on Jan 10, 2023, 10:37 am

Samuel Sura Mr SALVIS LEEDuser Premium Member 3 thumbs up September 26, 2023- 7:46 am Hi Bob,  I found this information on a different Leeduser forum: Here's an update in case anyone comes across this old thread: it's now free to create your project in Arc and see your performance without paying to register anything. From < https://leeduser.buildinggreen.com/forum/black-box-or-transparent-benchmarking > Samuel Log in or register to post comments ...

Last reply: Samuel Sura, Sep 26, 2023, 7:46 am

Renewable energy

EBOM-v4.1 EAp3: Energy Performance
posted by SAMY Chamy on Jun 23, 2023, 9:16 am

Hi Team,

We have received an inquiry from a large corporation with more than 20 buildings on the same campus that has 2.5 MW of solar on its roof and operates with net metering (...

Manufacturing energy and water consumption

EBOM-v4.1 EAp3: Energy Performance
posted by Salomee Hinque on Jun 8, 2023, 11:34 pm

Dear all,

I have a manufacturing project which is LEED BD+C certified and going for recertification under LEED O+M v4.1. On the ARC platform, does the energy and the...

Last reply: Dave Hubka, Jun 13, 2023, 9:41 pm

GHG emission factor- renewable energy and operating hours-EA energy performance O+M v4.1

EBOM-v4.1 EAp3: Energy Performance
posted by RICCARDO BALLESIO on May 18, 2023, 6:30 am

Hello everyone, 

in the previous version LEED...

LEED O+M Campus Chiller Plant

EBOM-v4.1 EAp3: Energy Performance
posted by Rajarajan Sekar on Mar 11, 2023, 1:47 am

We are trying to go for LEED O+M  certification in one  of our buildings which has a Chiller plant in it along with other occupied places

Since we are measuring the building energy...

Can start of 365 data collection period be retroactive?

EBOM-v4.1 EAp3: Energy Performance
posted by Susan Di Giulio on Jan 24, 2023, 12:16 am


We have a client that wishes to start on LEED O+M immediately but needs to complete certification before the end of year (12/31/2023) for ESG reporting reasons. Assuming that their...

Last reply: Ricardo Filho, Feb 8, 2023, 7:05 am

Greenhouse Gas Emissions Calculator

EBOM-v4.1 EAp3: Energy Performance
posted by Heather Enos-Graves on Nov 19, 2021, 2:10 pm


Can anyone suggest an accurate and reliable calculator for greenhouse gas emissions?

Thank you

Last reply: Saba Hajizadeh, Jun 24, 2022, 8:56 am

Outside Temperature Adjustment Factor

EBOM-v4.1 EAp3: Energy Performance
posted by Julie Hendricks on Nov 9, 2020, 11:44 pm

The calculation for determining the outside temperature adjustment factor in the...

Last reply: Francisca Gonzalez, Jun 15, 2022, 5:58 pm

LEED v4.1 EB O&M: How can data center projects overcome the constraints of the Arc energy score?

EBOM-v4.1 EAp3: Energy Performance
posted by JL on Mar 14, 2022, 5:25 pm

For LEED v4.1 EB O&M projects, I understand that Energy Performance scores are assigned in the Arc platform by considering a building's floor area, occupancy, and operating hours. And that...