Cut Carbon Symposium: Capital Carbon Inventory Seedcorn Project
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This document presents a framework for quantifying greenhouse gas (GHG) emissions in infrastructure projects, emphasizing the need for transparency in carbon assessment. It highlights the UK's commitments to decarbonising transport and achieving net-zero emissions, while outlining project objectives aimed at creating an open-source resource for estimating capital carbon associated with infrastructure projects. The document also details methodologies and resources for stakeholders in the construction and transportation sectors to integrate and report carbon emissions effectively.
Cut Carbon Symposium: Capital Carbon Inventory Seedcorn Project
- 1. 29/09/2020 Dr Jannik Giesekam @jannikgiesekam Research Fellow in Industrial Climate Policy University of Leeds Capital carbon inventory seedcorn project these slides are available at www.jannikgiesekam.co.uk
- 2. Emissions from an infrastructure asset Figure 7 from PAS 2080:2016 Carbon Management in Infrastructure helping to ensure a balanced perspective by showing the gross size/scale of emissions and when they occur. In this way informed decisions can be made supporting optimum low carbon outcomes. Figure 7 – Modular approach showing the life cycle stages and individual modules for infrastructure GHG emissions quantification 18 © The British NOTE 1 Figure 7 provides a framework for the quantification of GHG emissions for an infrastruc programme of works and corresponds to the modular structure for information reporting used Product Declarations (EPD) for construction products, processes and services following a structu the principles set out in BS EN 15978:2011 and BS EN 15804:2012. NOTE 2 Figure 7 is taken from BS EN 15978:2011 and has been adapted for PAS 2080 and infras NOTE 3 Figure 7 is to be read in conjunction with Annex A and the Guidance Document to PAS provides descriptions and worked examples of the modular life cycle boundaries. 18 NOTE 1 Figure 7 provides a framework for the quantification of GHG emiss programme of works and corresponds to the modular structure for informa Product Declarations (EPD) for construction products, processes and service the principles set out in BS EN 15978:2011 and BS EN 15804:2012. NOTE 2 Figure 7 is taken from BS EN 15978:2011 and has been adapted for NOTE 3 Figure 7 is to be read in conjunction with Annex A and the Guidan provides descriptions and worked examples of the modular life cycle bound 18 NOTE 1 Figure 7 provides a framework for the quan programme of works and corresponds to the modul Product Declarations (EPD) for construction product the principles set out in BS EN 15978:2011 and BS EN NOTE 2 Figure 7 is taken from BS EN 15978:2011 and NOTE 3 Figure 7 is to be read in conjunction with An provides descriptions and worked examples of the m
- 3. UK greenhouse gas emissions & targets Territorial emissions & carbon footprint from 2020 official statistics to 2018 and 2017 respectively. Others from CCC (2019) Net Zero. The UK’s contribution to stopping global warming & 2020 Annual Progress Report to Parliament; DBEIS Energy & emissions projections 16/05/19 & 2017 Green Construction Board Low Carbon Routemap update 0 100 200 300 400 500 600 700 800 900 1000 1990 1995 2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 MtCO2 e Least cost pathway from CCC 5th Carbon Budget advice Legislated Carbon Budgets (5 year periods) Carbon footprint of UK consumption UK territorial emissions DBEIS Reference Scenario Capital carbon (GCB) Surface transport 451 794 113 113 43 49 772 918 Residual emissions in CCC net zero scenario 88 Remaining UK budget til net zero of ~7000 MtCO2e
- 4. “outside of the scope of this plan are the GHG emissions associated with power generation and distribution for transport, and construction of transport infrastructure, noting their consideration in other policy areas”. Transport challenge DfT (2020) Decarbonising transport. Setting the challenge. Emphasis added. Decarbonising Transport Setting the Challenge March 2020
- 5. “Reaching net-zero GHG emissions requires extensive changes across the economy, with complete switchovers of several parts of the UK capital stock... Achieving net-zero emissions will require new infrastructure... Major infrastructure decisions need to be made in the near future and quickly implemented... Just how much infrastructure will need to be developed in each sector will depend on decisions on the pathway to achieving net-zero emissions.” Infrastructure transformation is essential for net zero CCC (2019) Net Zero. The UK’s contribution to stopping global warming. Emphasis added. Net Zero The UK's contribution to stopping global warming Committee on Climate Change May 2019
- 6. Required across all scales, e.g. National National Infrastructure Assessment, associated models & recommendations National Infrastructure & Construction Pipeline from Infrastructure & Projects Authority Green Construction Board Low Carbon Routemap for the Built Environment Regional Strategic Transport Plan & Long Term Investment Pipeline from Transport for the North London Infrastructure Plan & Mayor’s Transport Strategy for London Sectoral Road Investment Strategies 1 & 2 Corporate Highways England Strategic Business Plan & Delivery Plans Long term scenarios, routemaps & investment pipelines What are the associated emissions?
- 7. Already routinely evaluated Increasingly commonplace Rarely evaluated Materials, products & components Assets & projects Asset portfolios Investment plans, pipelines & scenarios CapCarb OpCarb UseCarb Recent trends Rapidly expanding range of Environmental Product Declarations (>8000); new and recently updated databases (e.g. ICE v3); suppliers increasingly able to provide information on request Carbon assessment increasingly embedded into regulations (e.g. 2014/52/EU); organisational requirements and standards (e.g. Network Rail Environmental and Social Minimum Requirements) Carbon management commonplace; many organisations with carbon KPIs (e.g. Highways England supply chain emissions); some benchmarking (though often only for OpCarb & UseCarb) Increasingly detailed and integrated system models evaluating futures but CapCarb largely absent from models and rarely assessed for investment pipelines Where our project fits
- 8. Proposed solution Photo by Oscar Nord on Unsplash. Creation of a transparent open source resource facilitating estimation of capital carbon of future projects and pipelines
- 9. Materials, products & components: EPD (Environmental Product Declaration) directories Carbon factor databases (e.g. ICE database) Bespoke tools Assets & projects: Independent LCA studies Environmental Statements produced as part of EIA Information from stakeholder databases Resource also includes links to guidance and tools Key data sources for amalgamation Example excerpt from carbon assessment within A9/A96 Inshes to Smithton EIA A9/A96 Inshes to Smithton DMRB Stage 3 Environmental Impact Assessment Report Appendix A17.2: Carbon Assessment Page A17.2-6 • treatment of wastes; • transportation of waste and material; • operational electricity consumption; and • emissions associated with maintenance activities. 2.12 Footway quantities are not included in the pavement/sub base materials in Table 1, but are modelled and the impacts included in the results below. Footway construction depth is assumed to be 220mm, comprising Type 1 unbound mixture sub-base 150mm thick, dense macadam binder course with 20mm aggregate 50mm thick, close graded macadam surface course with 6mm aggregate 20mm thick = 5,245m3 (including 10% worst-case scenario contingency). 3 Results 3.1 Transport Scotland’s Projects Carbon Tool was used to estimate the carbon emissions associated with the proposed scheme. The results are set out in Table 2, Table 3 and Table 4. The calculations are based on a worst-case scenario, including a 10% contingency to cover unknown items. 3.2 Table 2 shows the total carbon emissions anticipated from the proposed scheme throughout its lifetime, during construction and maintenance. It should be noted that that due to rounding of data outputs there are slight discrepancies between the totals presented in Tables 3 and 4, when compared to Table 2. It is confirmed that the information provided in these tables is correct as an output of the Carbon Tool. Table 2: Proposed Scheme Emissions Summary (Worst Case Scenario Including 10% Contingency) Carbon source tCO2e Construction: Materials embodied 15,050 Maintenance: Materials embodied 13,975 3.3 Table 3 and Table 4 provide more detailed information on the carbon emissions for each of the 3 stages by splitting the figures into individual project elements and the carbon emissions for construction materials by type. All volumes shown are based on the worst-case scenario figures that include a 10% contingency. Table 3: Summary by Project Elements (Worst-case scenario including a 10% contingency) Project elements Materials embodied (tCO2e) Maintenance (materials embodied) (tCO2e) Drainage 60 615 Earthworks 8,290 0 Fencing 120 470 Road Pavement 3,085 12,230 Safety Barriers 125 490 Signs 35 165 Structures (civils & buildings) 3,345 0
- 10. 1. Stock distribution implies impending spike in maintenance, refurbishment & new construction e.g. wave of 70s roads requiring remedial work 2. Stimulus spending will we ‘build back better’ or ‘build build build’? 3. Legal challenges questioning compatability with Paris Agreement e.g. Heathrow ANPS ruling & RIS2 legal challenge 4. Numerous ongoing ‘net zero’ initiatives that could be informed by the proposed resource e.g. Net Zero Infrastructure Coalition Embodied Carbon Working Group Timeliness of project Photo by Chris on Unsplash
- 11. 1. Compile an open and extendable prototype resource detailing CapCarb emissions factors for products, components, projects and asset types; coupled with a set of representative material inventories for common model elements. 2. Generate CapCarb benchmarks for physical assets, capital investments, and units of service provision. These high-level benchmarks will be suitable for use in long term scenario modelling where detailed asset designs are not yet available. 3. Demonstrate application of these benchmarks within the designated corridor 4. Further develop understanding of stakeholder needs through engagement and prototype testing, with the intention of developing a final product through a future funding bid. Project objectives
- 12. Focus of activities to date: Engaging stakeholders Compiling directory of links to standards, guidance, learning resources etc. Compiling material, product, component and asset data Project timeline Work packages 1. Rapid review of CapCarb integration in current models 2. Compilation of CapCarb data 3. Benchmark generation 4. Development of prototype online resource Development of alpha version Stakeholder workshop Development of beta version Delivery of beta version Jul Aug Sep Oct Nov Dec
- 13. 1. Submit user needs 2. Contribute data 3. Connect relevant stakeholders & projects 4. Participate in development workshops 5. Offer feedback or develop resultant resource How to get involved Tunnel boring machine under construction courtesy of HS2 email: [email protected]
- 14. Thank you Please get in touch with any queries [email protected] these slides are available at www.jannikgiesekam.co.uk