CS-v4 EAp3: Building-level energy metering

  • Standard practice for most projects

    It’s standard practice for most new buildings to install whole-building energy metering, which satisfies this prerequisite. In addition, those projects simply need to commit to sharing energy use data and electrical demand data (if metered) with USGBC for five years.

    If your project design doesn’t currently include compliant energy metering, you’ll need to ensure that metering is installed that measures energy use for the LEED project building. All energy supplied by a utility company or campus central plant must be metered. Teams are not required to meter locally generated sources of energy that are dedicated to the project building, such as photovoltaic systems. However, teams may want to consider installing additional metering when doing so will support the project’s ability to meet energy performance goals during operations.

    Remember that energy meters cannot be shared with another building. There are no special requirements for the meter type except that it must be permanent. Meters must track energy use at one-month intervals, at minimum.

    What’s New in LEED v4

    • This is a new prerequisite.
    • Ongoing energy tracking and reporting was previously required by Minimum Program Requirement 6 in LEED 2009.

    FAQs

    Is there an example commitment letter that I can use?

    USGBC has not provided a commitment letter template. However, Minimum Program Requirement 6 from the LEED 2009 rating system included a requirement for sharing water use data, which is outlined on Project Information Form 1. The language on the PIf1 form can provide teams with a good starting point for developing their own commitment letter. 

  • EA Prerequisite 3: Building-level energy metering

    Intent

    To support energy management and identify opportunities for additional energy savings by tracking building-level energy use.

    Requirements

    Install new or use existing base buildingThe base building includes elements such as the structure, envelope, and building-level mechanical systems, such as central HVAC, and materials and products installed in the project (e.g., flooring, casework, wall coverings).-level energy meters, or submeters that can be aggregated to provide base building-level data representing total building energy consumption (electricity, natural gas, chilled water, steam, fuel oil, propane, etc.). Utility-owned meters capable of aggregating base building-level resource use are acceptable.

    Commit to sharing with USGBC the resulting energy consumption data and electrical demand data (if metered) for a five-year period beginning on the date the project accepts LEED certification or typical occupancy, whichever comes first. At a minimum, energy consumption must be tracked at one-month intervals.

    This commitment must carry forward for five years or until the building changes ownership or lessee.

Letter of Commitment Template

 Use this template to develop a letter from the project owner committing to share whole-building water and energy usage data.

11 Comments

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Jens Apel
Jul 18 2017
LEEDuser Member
1470 Thumbs Up

Base building versus tenant metering

Project Location: Germany

Maybe I am overly cautious, but I would like to clarify the following. The Ref.Guide states "base buildingThe base building includes elements such as the structure, envelope, and building-level mechanical systems, such as central HVAC, and materials and products installed in the project (e.g., flooring, casework, wall coverings).-level" energy meters.
Does this mean the meters should only measure common areas and systems that are under direct control of the owner? Meaning, receptacles, lights etc. in tenant areas must be excluded? Or can just the main meter be used, which includes tenant consumption as well?
If tenants need to be excluded I assume it is allowable to deduct tenant meter readings from the main meter, correct?

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Marcus Sheffer LEED Fellow, 7group Jul 18 2017 LEEDuser Expert 70310 Thumbs Up

You need either a single meter that measures energy use for the whole building or a series of submeters that when added together will total to the energy use of the whole building.

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Jens Apel Jul 19 2017 LEEDuser Member 1470 Thumbs Up

That's good. In Germany you've normally got a meter for each energy supply anyway from the energy supplier. So that would be enough, as long as operation staff takes monthly recordings.

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Michael Costello Senior Project Manager Hathaway Dinwiddie Construction Company
May 02 2017
LEEDuser Member

Main Building Utility Meter Data Acquisition

Project Location: United States

Do Main Building Utility Meters have to automatically transmit monthly data to to the BMS system managing the the whole building energy data? In my area some utilities provide the meters but they do not have or provide access fto the electronic output. Can regular monthly usage data from the utility be manual input to the BMS system and qualify for this prerequisite?

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Marcus Sheffer LEED Fellow, 7group May 02 2017 LEEDuser Expert 70310 Thumbs Up

This prerequisite only requires that there are whole building meters installed for each fuel source. The data does not have to be transmitted or be entered into the BMS.

The sharing of the data would be through EPA's Portfolio Manager. You enter the data in your account and share it with USGBC.

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Sean Hogan LEED AP RKD Architects
Aug 22 2014
LEEDuser Member
232 Thumbs Up

Building Energy Metering - Third Party Source

Hi,

We have commenced a project seeking LEED V4 certification and wish to know more sharing metered information through third party sources. We are a non US project and not overly familiar with Energy Star.

Can anybody explain what third party sources are available?

Sean

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Marcus Sheffer LEED Fellow, 7group Apr 14 2015 LEEDuser Expert 70310 Thumbs Up

Can you point me to where the concept of third party sources is referenced? If so I will attempt to answer the question.

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Jason Happe Director of Energy & Sustainability, EBI Consulting Dec 16 2015 LEEDuser Member 53 Thumbs Up

I have a similar question - I am curious about what types of building level energy meter options are out there? I am also seeking LEE V4 certification for a Core and Shell project and our team is curious about other options besides a BAS system. Thank you.

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Marcus Sheffer LEED Fellow, 7group Dec 16 2015 LEEDuser Expert 70310 Thumbs Up

At the whole building level the ones from the local utility are best and the easiest way to earn this prerequisite.

So you need a meter for each major fuel type and a means to record the data. The BAS systems typically just interface with the meters to make recording and reading easier. You can do that with datalogger equipment too. On the electrical side there are meters that can be built into electrical panel boxes.

These meters need to be permanently installed. So select the metering equipment that does the job at the lowest price.

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Jason Happe Director of Energy & Sustainability, EBI Consulting Dec 17 2015 LEEDuser Member 53 Thumbs Up

Thank you. So then you just need meters on all building level energy consumption, but not ONE total aggregating meter that compiles all of these meters into one place? There are existing utility meters, we were just curious if we needed to buy an additional meter that aggregated all meters to one.

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Marcus Sheffer LEED Fellow, 7group Dec 17 2015 LEEDuser Expert 70310 Thumbs Up

No aggregation needed. You just need a building level meter for each fuel used.

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Jul 27 2017
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