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Embodied Carbon in MEP design
Louise Hamot Global Head of Lifecycle Research
Lhamot@integralgroup.com
Studies
Need for whole life carbon approach
Embodied Carbon in MEP design Studies Louise Hamot Global Head of - - PowerPoint PPT Presentation
Embodied Carbon in MEP design Studies Louise Hamot Global Head of - - PowerPoint PPT Presentation
Embodied Carbon in MEP design Studies Louise Hamot Global Head of Lifecycle Research Lhamot@integralgroup.com Need for whole life carbon approach Embodied Carbon in MEP design Knowledge Gap Case Studies Building Level Evaluating embodied
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Embodied Carbon in MEP design
Knowledge Gap
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Case Studies Building Level
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Evaluating embodied carbon of MEP
Methodology
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Case Studies
US West London Canada US Mid-West
Office Retrofit
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Case Study Office Retrofit 2,000 sqm – 2 Floors California, US Energy Positive
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Worst Case Scenario
184 kgCO2e/m2 for MEP
Over 30 years - Including PV
200000 400000 600000 800000 1000000 1200000 1400000 1600000 High Med
Building New Building Existing HVAC PLUMBING ELECTRICAL PV REFRIGERANT LEAKAGE
MEP 49% NEW BUILD 75% RETROFIT
kgCO2e Embodied Carbon Emissions
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200000 400000 600000 800000 1000000 1200000 1400000 1600000 High Med Low
Building New Building Existing HVAC PLUMBING ELECTRICAL PV REFRIGERANT LEAKAGE
Medium Case Scenario
105 kgCO2e/m2 for MEP Over
30 years - Including PV kgCO2e Embodied Carbon Emissions
MEP 23% NEW BUILD 49% RETROFIT
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200000 400000 600000 800000 1000000 1200000 1400000 1600000 High Med Low
Building New Building Existing HVAC PLUMBING ELECTRICAL PV REFRIGERANT LEAKAGE
Best Case Scenario
63 kgCO2e for MEP
Over 30 years - Including PV kgCO2e Embodied Carbon Emissions
MEP 15% NEW BUILD 37% RETROFIT
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200000 400000 600000 800000 1000000 1200000 1400000 1600000 High Med Low
Summary for a NEW BUILD
49% 23% 15%
MEP BUILDING
kgCO2e Embodied Carbon Emissions
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200000 400000 600000 800000 1000000 1200000 1400000 High Med Low
Summary for a RETROFIT
76% 49% 37%
MEP RETROFIT
kgCO2e Embodied Carbon Emissions
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Carbon emissions equivalence
10ha mixed native woodland 40 years old standing stock sequesters about 4,172 TCO2* A typical coal plant releases 3.6 millions TCO2 per year** 184 kgCO2e /m2 for MEP
Over 30 years - Including PV
*:UK Forestry **:US 2017 Census Bureau US
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CO2 emissions equivalence – London scale
1,572 km2 290 millions Tonnes of CO2e from MEP design equipment 70, 000 10ha mixed native woodlands – 40 years
- ld standing stock
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Case Studies Refrigerant Impact
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Refrigerant – GWP impact
200000 400000 600000 800000 1000000 1200000 1400000 1600000 High Med Low
18% 2%
MEP BUILDING
kgCO2e Embodied Carbon Emissions
REFRIGERANT LEAKAGE
Building level
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Refrigerant - GWP Impact
A5 Construction
B1 in use refrigerant Leakage
B3-B4 Replacement B6 Operational Energy C1 Removal from Site C2 Transport C3D Disassembly
C3R Disposal refrigerant Leakage
C4 Disposal A3 Transport to site A2-A3 Manufacture A1 Material Extraction
50,000 100,000 150,000 200,000 250,000 300,000 Boiler low Boiler med Boiler high CHP low CHP med CHP high ASHP low ASHP med ASHP high VRF low VRF med VRF high WLC kg CO2e
2019-Whole life carbon heat generation equipment - Passivhaus type builds
Equipment level
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20 30 40 50 60 70 80 DH-0 DH-1 DH-2 DH-3 CH-1 CH-2 CH-3 CH-4 CH-5 IH-1 IH-2 IH-3 IH-4 IH-5
Whole Life Carbon (TCO2e) System Options
Whole Life Carbon per dwelling for 60 years
High refrigerant leakage Low refrigerant leakage Embodied carbon Operational carbon
Heating Options
District Heating Communal Heating Individual Heating
District Level level
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20 30 40 50 60 70 80 DH-0 DH-1 DH-2 DH-3 CH-1 CH-2 CH-3 CH-4 CH-5 IH-1 IH-2 IH-3 IH-4 IH-5
Whole Life Carbon (TCO2e) System Options
Whole Life Carbon per dwelling for 60 years
High refrigerant leakage Low refrigerant leakage Embodied carbon Operational carbon
Heating Options
District Heating Communal Heating Individual Heating
District Level level
All direct Electric
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Refrigerant Best Practice Guide
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Next Steps
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Calculation Methodology for MEP products - being finalised through peer-review
Upcoming CIBSE TMxx
Ask the manufacturer if an EPD is available Send the manufacturer the data collection form asking them to complete all the data they can Use the “Mid-Level Calculation” Method Use the “Basic Calculation” Method No calculations can be carried out Use the EPD Send CIBSE manufacturer form and a summary of research undertaken to build knowledge in this area
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Rules of thumb Embodied Carbon in MEP design
Heating in Residential New Build
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Thank you
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@elementa_uk @deepgreeneng
Louise Hamot Global Lead of Life Cycle Research vision@integralgroup.com