Ben Stanley
WSP - Built Ecology
Senior Sustainability Manager
EBOM-2009 EAc3.2: Performance Measurement—System-Level Metering
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Develop a breakdown of energy use in the building, either through EA Credits 2.1 and 2.2 or by using energy bills, spot metering or other metering to determine the energy consumption of major mechanical systems and other end-use applications. This analysis of major energy-use categories must have been conducted within 2 years prior to the date of application for LEED 2009 for Existing Buildings: Operations & Maintenance certification. Based on the energy-use breakdown, employ system-level metering covering at least 40% or 80% of the total expected annual energy consumption of the building. Permanent metering and recording are required. All types of submetering are permitted. Demonstrate that system-level metering is in place covering the percentage of total expected annual energy consumption of the building as outlined in the table below.
See all forum discussions about this credit »Frequently asked questions
Would tenant submetering in a commercial building qualify for this credit?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Would a building automation system (BAS) qualify as the submetering system if it could track energy consumption by end-use?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
What is the minimum time interval between measurement points?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
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Addenda
24/10/2008
LEED Interpretation
Description of change:
Inquiry:
Our project is registered under LEED EB 2.0. The project is an existing building of approximately 120,000 square feet of which 100,000 square feet is general office space and 20,000 square feet is manufacturing and warehouse. For the purposes of certification we are only attempting to certify the office portion of the building. Within EAc5.1-5.3, there are three actions that deal with sub-metering process utility usage: - Separate building electrical meters that allow aggregation of all process electrical loads; - Separate building natural gas loads that allow aggregation of all process natural gas loads; - Separate meters that allow aggregation of all indoor process water use. Because we are attempting to certify only the office portion of the facility, we will include sub-meters that track all utility usage of the manufacturing area. This will allow for true tracking of actual utility use in the office area, by subtracting the sub-metered data from the overall building meter data. We would like to know if this sub-metering of the manufacturing area would allow us to capture the three credits noted above. We believe that the manufacturing area comprises all process loads as noted, but also realize that the manufacturing area is, technically, outside the scope of the certification. Nevertheless, the sub-metering will take place, and will give the owner accurate and on-going performance data which is the goal of the credit.
Ruling:
Under LEED-EBv2.0, the entire building, including manufacturing and warehouse spaces, must be included in and addressed by the certification application. Therefore, submetering of the manufacturing and warehouse spaces would address the requirements of EAc5. Applicable Internationally.
Campus Applicable
No
Internationally Applicable:
Yes
LEEDuser overview
Frank advice from LEED experts
LEED is changing all the time, and every project is unique. Even seasoned professionals can miss a critical detail and lose a credit or even a prerequisite at the last minute. Our expert advice guides our LEEDuser Premium members and saves you valuable time.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Develop a breakdown of energy use in the building, either through EA Credits 2.1 and 2.2 or by using energy bills, spot metering or other metering to determine the energy consumption of major mechanical systems and other end-use applications. This analysis of major energy-use categories must have been conducted within 2 years prior to the date of application for LEED 2009 for Existing Buildings: Operations & Maintenance certification. Based on the energy-use breakdown, employ system-level metering covering at least 40% or 80% of the total expected annual energy consumption of the building. Permanent metering and recording are required. All types of submetering are permitted. Demonstrate that system-level metering is in place covering the percentage of total expected annual energy consumption of the building as outlined in the table below.
See all forum discussions about this credit »Checklists
Step by step to LEED certification
LEEDuser’s checklists walk you through the key action steps you need to earn a credit, including how to avoid common pitfalls and save money.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Documentation toolkit
The motherlode of cheat sheets
LEEDuser’s Documentation Toolkit is loaded with calculators to help assess credit compliance, tracking spreadsheets for materials, sample templates to help guide your narratives and LEED Online submissions, and examples of actual submissions from certified LEED projects for you to check your work against. To get your plaque, start with the right toolkit.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Frequently asked questions
Would tenant submetering in a commercial building qualify for this credit?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Would a building automation system (BAS) qualify as the submetering system if it could track energy consumption by end-use?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
What is the minimum time interval between measurement points?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Addenda
24/10/2008
LEED Interpretation
Description of change:
Inquiry:
Our project is registered under LEED EB 2.0. The project is an existing building of approximately 120,000 square feet of which 100,000 square feet is general office space and 20,000 square feet is manufacturing and warehouse. For the purposes of certification we are only attempting to certify the office portion of the building. Within EAc5.1-5.3, there are three actions that deal with sub-metering process utility usage: - Separate building electrical meters that allow aggregation of all process electrical loads; - Separate building natural gas loads that allow aggregation of all process natural gas loads; - Separate meters that allow aggregation of all indoor process water use. Because we are attempting to certify only the office portion of the facility, we will include sub-meters that track all utility usage of the manufacturing area. This will allow for true tracking of actual utility use in the office area, by subtracting the sub-metered data from the overall building meter data. We would like to know if this sub-metering of the manufacturing area would allow us to capture the three credits noted above. We believe that the manufacturing area comprises all process loads as noted, but also realize that the manufacturing area is, technically, outside the scope of the certification. Nevertheless, the sub-metering will take place, and will give the owner accurate and on-going performance data which is the goal of the credit.
Ruling:
Under LEED-EBv2.0, the entire building, including manufacturing and warehouse spaces, must be included in and addressed by the certification application. Therefore, submetering of the manufacturing and warehouse spaces would address the requirements of EAc5. Applicable Internationally.
Campus Applicable
No
Internationally Applicable:
Yes
Guest expert
Ben Stanley
WSP - Built Ecology
Senior Sustainability Manager