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 carbon of MEP Methodology

Case Studies Office Retrofit London US West US Mid-West Canada

Case Study Office Retrofit 2,000 sqm – 2 Floors California, US Energy Positive

Worst Case Scenario 184 kgCO 2 e/m2 for MEP Over 30 years - Including PV Embodied Carbon Emissions 1600000 1400000 MEP 49% NEW BUILD 1200000 1000000 kgCO2e 75% RETROFIT 800000 600000 400000 200000 0 High Med Building New Building Existing HVAC PLUMBING ELECTRICAL PV REFRIGERANT LEAKAGE

Medium Case Scenario 105 kgCO2e/m2 for MEP Over 30 years - Including PV Embodied Carbon Emissions 1600000 1400000 MEP 1200000 23% NEW BUILD 1000000 kgCO2e 800000 49% RETROFIT 600000 400000 200000 0 High Med Low Building New Building Existing HVAC PLUMBING ELECTRICAL PV REFRIGERANT LEAKAGE

Best Case Scenario 63 kgCO 2 e for MEP Over 30 years - Including PV Embodied Carbon Emissions 1600000 1400000 1200000 MEP 15% NEW BUILD 1000000 kgCO2e 800000 37% RETROFIT 600000 400000 200000 0 High Med Low Building New Building Existing HVAC PLUMBING ELECTRICAL PV REFRIGERANT LEAKAGE

Summary for a NEW BUILD Embodied Carbon Emissions 1600000 1400000 1200000 49% 1000000 23% kgCO 2 e 15% 800000 600000 400000 200000 0 High Med Low MEP BUILDING

Summary for a RETROFIT Embodied Carbon Emissions 1400000 1200000 1000000 kgCO 2 e 76% 800000 49% 37% 600000 400000 200000 0 High Med Low MEP RETROFIT

Carbon emissions equivalence 184 kgCO 2 e /m2 for MEP Over 30 years - Including PV 10ha mixed native woodland 40 A typical coal plant years old standing stock releases 3.6 millions TCO 2 sequesters about 4,172 TCO 2 * per year ** *:UK Forestry **:US 2017 Census Bureau US

CO 2 emissions equivalence – London scale 1,572 km2 70, 000 10ha mixed native 290 millions Tonnes of woodlands – 40 years CO2e from MEP design old standing stock equipment

Case Studies Refrigerant Impact

Refrigerant – GWP impact Building level Embodied Carbon Emissions 1600000 1400000 18% 1200000 2% 1000000 kgCO2e 800000 600000 400000 200000 0 High Med Low MEP REFRIGERANT LEAKAGE BUILDING

Refrigerant - GWP Impact Equipment level 2019-Whole life carbon heat generation equipment - Passivhaus type builds A1 Material Extraction A2-A3 Manufacture 300,000 A3 Transport to site A5 Construction 250,000 B1 in use refrigerant Leakage 200,000 WLC kg CO2e B3-B4 Replacement 150,000 B6 Operational Energy C1 Removal from Site 100,000 C2 Transport 50,000 C3D Disassembly C3R Disposal refrigerant Leakage 0 Boiler Boiler Boiler CHP CHP CHP ASHP ASHP ASHP VRF VRF VRF C4 Disposal low med high low med high low med high low med high

Heating Options District Level level Whole Life Carbon per dwelling for 60 years 80 70 60 Whole Life Carbon (TCO2e) 50 40 30 20 10 - 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 Communal Heating District Heating Individual Heating System Options High refrigerant leakage Low refrigerant leakage Embodied carbon Operational carbon

Heating Options District Level level Whole Life Carbon per dwelling for 60 years 80 70 60 Whole Life Carbon (TCO2e) 50 All direct Electric 40 30 20 10 - 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 Communal Heating District Heating Individual Heating System Options High refrigerant leakage Low refrigerant leakage Embodied carbon Operational carbon

Refrigerant Best Practice Guide

Next Steps

Calculation Methodology for MEP products - being finalised through peer-review Upcoming CIBSE TMxx Ask the manufacturer if an EPD is available Use the EPD Send the manufacturer the data collection form asking them to complete all the data they can Use the “Mid -Level Use the “Basic No calculations can be Calculation” Method Calculation” Method carried out Send CIBSE manufacturer form and a summary of research undertaken to build knowledge in this area

Rules of thumb Embodied Carbon in MEP design Heating in Residential New Build

Thank you

@elementa_uk @deepgreeneng Louise Hamot Global Lead of Life Cycle Research vision@integralgroup.com