MEP 2040�Data, Analysis and Reporting Working Group

The Challenge from the Carbon Leadership Forum

Data, Analysis and Reporting

Working Group

Steering Committee Members:

Members:

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Alex Boetzel

Patrick Murphy

Kim Shinn

Stet Sanborn

Stefanie Young

Andi Burnham

Ante Vulin

Luca De Giovanetti

Philippe St-Jean

Adam Jennings

Ceire Kenny

Chris Savage

Layne Micek

Bryna Dunn

Kit Elsworth

Haithem Daghmoum

Gaurav Mehta

Mike Kasuya

Marzia Sedino

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Wyatt Ross

Paige Colao

Scott Farbman

Jeff Roman

Dominick Fortuna

George Miroshnikov

Art Giesler

Ethan Seaman

Miguel Gonzalez

Anthony Bernheim

Autusa Behroozi

Alfred Uzokwe

David Heinzerling

Shona O Dea

Noah Goldstein, Google

Ramya Shivkumar

Kurt Karnatz

Brian Leavitt

Ahmad Anbari

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Rishabh Kabade

Mike Nowicki

Nathan Kegel

Nicholas Lassek

Mehdi Robati

Ben Cullum

Nathan Vader

Jeffrey Rios

Coral Pais

Doug Partington

Caitie Vanhauer

Veronica Contucci

Jason Norton

Cory Duggin

Michael Meador

Ed Bratton

Jonathan Young

Rushyan Yen

Paul Erickson

AIA DDX Reporting - Draft

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MEP Reporting - AIA DDX

SKETCH Refrigerant Impact Fields for DDX Reporting

Kim to prompt conversation with AIA DDX for formalization

Someone from MEP 2040 sit on AIA 2030 for FFX data sanitization

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Refrigerant Tool Updates

Refrigerant Impact Tool - Requested Updates

• Inclusion of R-513A (Carrier/York), R514A and R-1233zd (need dataset or GWP values) - reported by manufacturer (Cory Email)

Calculated based on H-C-F-C mixtures (rationale in About section)

Or known value from cut sheet ability to be entered

• ASHRAE 228P - source deleted by ASHRAE, need new link

BIM MEP LCA Protocols + Bills of Materials

BIM Protocols

• What can we measure at present?
• Refrigerant GWP
• Systems (Ducts, Pipes, Conduit, Cable Tray)

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• Should we try to get Bills of Materials for what we can measure across a variety of projects to understand if piping/ductwork can change drastically from one building typology or system type to the next?

Knowledge Gathering

Acronyms Explained – LCA, EPD and GWP

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CIBSE TM65 Method

GWP Approximation

Environmental Product Declaration

Verified

Life Cycle Assessment

A1-A3 (Typical Manufacturer’s Embodied Carbon Influence)

Cradle to Gate

A-D (Full LCA)

Cradle to Grave

A1-A3+B1+C1 (Refrigerant Influence)

Installation, Annual Leakage, EOL

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How Do You Calculate Embodied Carbon of MEP Systems?

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Object +

Properties +

Length

Size

Insulation Thickness

Material Selection

Capacity (Airflow)

Weight

Count

Matching EPD

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MEP Environmental Product Declaration Research

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• Composite Dataset Based on Limited EPDs Available

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Pipe Impact

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• Dense materials, higher kgCO2e (Copper=2kgCO2e/m; Cast Iron 15kgCO2e/m)
• Insulation affect ~1kgCO2e per meter (per 25mm (1”))

Insulation Thickness

Material kgCO2 per meter

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Scaling Equipment EPDs

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• Scaling: Weight vs Capacity
• Custom AHU (10,000kg), Out of the Box with the same capacity (2,000kg)
• Custom AHU Advantages: longer lifespan, better operational efficiency/noise pollution
• Early stage designs tend to know capacity rather than weight; suggest having multiple EPD representations for AHUs (custom and non-custom)

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Study: Mechanical Systems kgCO2/m2

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Structures: Wood (125-150 kgCO2e/m2), Steel (175-225kgCO2e/m2), Concrete (200-300kgCO2e/m2)

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*Not inclusive of refrigerants

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Comparing to LETI Study

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A typical study of embodied carbon yields a result of 500 kgCO2e/m2, if a typical mechanical systems is around 60kgCO2e/m2 that’s 12% of the total embodied carbon. The LETI MEP study states that mechanical systems are 2-4% of the total.

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Conclusion: MEP systems, as a whole, are likely proportionally more significant than we previously believed.

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Refrigerant Impact - GWP

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Refrigerant Impact Tool – Beta Testing in Progress

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Refrigerant Impact Tool – Beta Testing in Progress

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MEP Reporting - AIA DDX

• Reporting Tool: 1 April - 31 March
• 80% EUI CBEX baseline reduction

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• Refrigerant Impact - now
• MEP Embodied Carbon - later
• Someone from MEP 2040 sit on AIA 2030 for FFX data sanitization

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Queries:

• Reporting for a campus vs an individual building

Things we need to know more about…

• x

Resources that we are aware of…

• CIBSE TM65/65.1
• CARB Refrigerants – Ted/Stet
• City of Seattle Refrigerant Leakage Study

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Potential Sub-Groups

Data, Analysis and Reporting

Working Group

Potential Sub-Groups:

• Collection of EPD Datasets
• Refrigerant Knowledge Gathering and Tool Development -
• Reporting: What to Report and Where (AIA DDX)
• Electrification Policy Sub-Groups – Letter/Advocacy – Equip GWP (Building Green Precedent – Luke, Adam, Kristy, Kim)- Comms Group or Data?
• Operational Impacts vs Embodied Impacts (grid emissions taken into account, time of use)

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Call for Co-Chairs!

Call for One Liaison to EPD Working Group

Meetings Moving Forward

Data, Analysis and Reporting

Working Group

Meeting Cadence:

• 1 hour
• Every Other Week (until the Second Forum (April-June))
• Monthly (June+)
• Wednesday afternoons (tentatively)