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15.30 Reducing Construction Emissions.pdf
This document discusses reducing construction emissions through partnerships and tools. It introduces a partnership with Impact on Urban Health to identify exemplar construction sites and develop an emissions tool. The tool calculates emissions from non-road mobile machinery and compares scenarios to benchmarks. The tool was updated to include carbon calculations and additional fuels. Next steps include sharing the tool widely and updating it with real-world emissions data. The tool helps plan equipment use and evaluate policies but has limitations in fully capturing alternative fuel emissions.
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15.30 Reducing Construction Emissions.pdf
- 1. Reducing Construction Emissions Exemplar sites Constructionemissions tool In partnership with: Sam Bradley 11th October 2023
- 2. Reducing Construction Emissions Agenda •Introduce work in partnership with Impact on Urban Health – Exemplar sites • Construction Non-Road Mobile Machinery (NRMM) emissions tool • NRMM emissions tool update and future application
- 3. Reducing Construction Emissions Partnershipwith Impact on Urban Health: Introduction Exemplar construction sites for air quality - Impact on Urban Health
- 4. Reducing Construction Emissions Partnershipwith Impact on Urban Health: Consultation and engagement Research feasibility and barriers of options/measures: • Literature review (e.g. papers, case studies) • Stakeholder engagement
- 5. High • Plan forzero emissions: • Plan sites to allow for diesel free construction Medium • Use low/ zero emissions equipment: • Select low/ zero emission alternatives (alternative fuel and exhaust abatement technology) Low • Reduce emissions: • Select more stringent EU Stage compliant equipment • Reduce equipment usage Reducing Construction Emissions Partnership with Impact on Urban Health: Knowledge acquired Considerations • Emission impact = achievable reduction • Cost = money/time. Capital and operational • Market = readiness and availability • Recommendations need to be site-specific
- 6. Reducing Construction Emissions Partnershipwith Impact on Urban Health: Exemplar Sites Our approach: • Involvement at procurement stage – Input into environmental Contract Clauses and Tender Questions – Site-specific evidence pack – Assess answers to tender questions • Inception of the construction NRMM emissions tool Tustin estate
- 7. Reducing Construction Emissions Partnershipwith Impact on Urban Health: Inception of NRMM emissions tool Original application: • Calculate and evidence reductions • Monitor progress towards targets Requirements of the tool: • Accessible and user friendly • Calculate emission comparisons • Provide insights
- 8. Stakeholder Engagement • Construction companiesand industry bodies • Administrative/regulatory bodies • Manufacturers/suppliers Research • Carbon emission factors and calculations • Emerging technology emissions • Alternative fuel emissions Tool Update • Incorporate carbon emission calculations • Incorporate additional emission factors (e.g. alternative fuels) • Incorporate further functions (e.g. GLA NRMM policy compliance) Future Maintenance • Testing • Feedback • Publishing Reducing Construction Emissions NRMM Emissions Tool (Version 2) Further applications of the tool: • Environmental procurement evidence • Emission-based planning of NRMM use/selection • Tracking emission reductions • Meeting policy requirements • Evaluating NRMM policy/targets based on emissions Inception of Version 2 Version 2 process
- 9. Reducing Construction Emissions NRMMEmissions Tool (Version 2): About the tool Flow of data in the tool Emission calculation Emission factors (EMEP/EEA and BEIS) NRMM details Power rating (kW) Euro Stage Equipment type (variable speed engine/constant speed engine) Estimated hours of use Alternative fuel assumptions/emission factors (manufacturer sheets, papers)
- 10. Reducing Construction Emissions NRMMEmissions Tool (Version 2): GLA Compliance • Calculate NOx and PM emissions • Compares with the Benchmark • Benchmark = minimum GLA NRMM policy requirements
- 11. Reducing Construction Emissions NRMMEmissions Tool (Version 2): Carbon breakdown • Calculate CO2e emissions • Compares with the Benchmark • Benchmark = minimum GLA NRMM policy requirements
- 12. Reducing Construction Emissions NRMMEmissions Tool (Version 2): Scenario comparison • Calculate NOx, PM and CO2e emissions • Compares with Baseline • Baseline = User determined
- 13. Reducing Construction Emissions NRMMEmissions Tool (Version 2): Next steps • Sharing as widely as possible • Continue to maintain and update Current aspirations for updates include: • Using Real World Emissions data • More intuitive inputs informed from trends in telemetry data (e.g. average engine setting/speed, idle times, usage)
- 14. Contact Senior Environmental Consultant,UK Air Quality team Sam Bradley Sam.Bradley@arup.com
- 16. Reducing Construction Emissions NRMMEmissions Tool (Version 2): Limitations • Not all available alternative fuel options (e.g. Hydrogen as combustion fuel – limited data held on emissions and uncertainty for CO2e) • EMEP/EEA emissions guidebook methodology – emission standard basis – Note that this will vary from Real World Emissions – see work from our friends at Centre for Low Emission Construction (C.D. Desouza et al. 20201) 1 C.D. Desouza, D.J. Marsh, S.D. Beevers, N. Molden, D.C. Green, Real-world emissions from non-road mobile machinery in London, Atmospheric Environment, Volume 223, 2020, 117301, ISSN 1352-2310, https://doi.org/10.1016/j.atmosenv.2020.117301.