Decarbonising Buildings: Making a net-zero built environment a reality
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The document discusses strategies for decarbonizing buildings and the importance of integrating digital technologies for effective decision-making and optimization. It outlines the creation of digital twins for real-time energy modeling and emphasizes collaborative approaches to develop decarbonization pathways that align with various targets. Key outcomes from projects demonstrate significant energy savings and potential reductions in carbon emissions.
Decarbonising Buildings: Making a net-zero built environment a reality
- 1. Ben Pettitt, Sector Lead – Real Estate, IES Decarbonising Buildings Making a net-zero built environment a reality
- 2. The Decarbonisation Challenge − Buildings are complex and dynamic − Designed for energy but operated for comfort − Occupant health & wellbeing is paramount − Where/ how to invest to decarbonise − Need confidence in financial risk and return evaluation www.iesve.com
- 3. 3 Making Good Decisions − Digital technology is a key enabler − Robust data and actionable information − Low hanging fruit - optimisation of building & system in operation − Targeted Net-Zero investment plans – short, medium, longer term − Smart, sequenced decarbonisation plans: − Lease & maintenance cycle − Planned refurbishments www.iesve.com
- 4. Making Good Decisions www.iesve.com Source: UKGBC. Building the case for net zero: retrofitting office buildings – Jan 2024
- 5. IES Digital Twin The IES Performance Digital Twin: − A superior data baseline − Includes energy simulation − Not just Digital Twin of BIM assets − Real-time digital replica − Responds & behaves like the real building − Physical and functional characteristics − Predicts impact of changes dynamically www.iesve.com
- 6. www.iesve.com The Best of Physics, Data and AI/ML Physics Enabled Simulation Real & Virtual Sensor Data AI & Machine Learning Performance Digital Twin
- 7. IES Digital Twin Applications www.iesve.com
- 8. www.iesve.com Assess − Data acquisition & analysis − Robust energy modelling Plan − Efficiency first − Retrofit scenario assessments − Decarbonisation pathway Implement − Optimise Operation − Invest in Net-Zero Monitor & Optimise − Ensure value of investments delivered Approach to Decarbonising Buildings
- 9. Net-Zero Scenario Testing − Weather and climate scenarios − Operational changes − Occupancy changes − Fabric Upgrades − Technology replacements − Conditioning Upgrades − Adding Renewables www.iesve.com
- 10. Decarbonisation Pathways − Bring together detailed improvement scenarios − Create decarbonisation roadmaps or transition pathways − Align with targets such as CRREM or EPCs − Collaborative online dashboards and command centres − Compare impacts and payback periods − Balance energy, carbon and cost alongside comfort, health & wellbeing www.iesve.com
- 11. Single pane decarbonisation view Source: UKGBC. Building the case for net zero: retrofitting office buildings – Jan 2024
- 12. Actioned Project Performance Tracking − Bridge the performance gap − Measurement and verification − Ensure performance savings − Quantify energy, cost, carbon − Monitor actioned projects − Enable collaboration – building owner, occupier, FM www.iesve.com
- 13. Client: Glasgow Life Key Outcomes − 26% gas savings − 18% electricity savings − £52.3k annual savings − Payback <6 months Riverside Museum www.iesve.com
- 14. www.iesve.com Irish Life Client: Irish Life Key Outcomes − Net-Zero Roadmap project for Irish Life, a leading portfolio owner − Sleeping Digital Twin process applied to extract value from existing compliance models − 4 digital twins created covering multiple building types − 48%-90% potential CO2 reductions identified by 2030
- 15. Client: Savills Key Outcomes − 14,000m2 office building − LEED Platinum Retrofit 2017 − €108K energy cost savings − 302 tonnes of carbon savings 1 George's Quay www.iesve.com
- 16. www.iesve.com Value Case for Net-Zero − Investment Grade Intelligence − Unlock the potential of your buildings − Deliver operational efficiency − Target capital investment with maximum environmental impact − Smart portfolio and asset investment plans − Reach ESG Goals − Achieve Regulatory Compliance − Modernise and Digitise your Assets − Preserve, Bolster and Create Value
Editor's Notes
- #4: Digital technology is a key enabler. Significant reductions in operational energy use are possible through optimisation of building systems. Developing long term retrofit plans on buildings today can help minimise the cost of the decarbonisation transition. Energy Use, Carbon, Cost Smart asset NZC investment plans can minimise the cost of the energy transition, taking advantage of trigger points such as: Lease and maintenance cycle; Planned refurbishments etc.
- #6: Buildings are complex, constantly changing, dynamic systems Physical, meteorological, technological, and human components The IES Digital Twin, as it’s a performance digital Twin, understands all these factors
- #7: So just to elaborate on the previous slide and how the IES Digital Twin works, Is that we use both Physics enabled simulation, based on fundamental physics principles, and Real time data, which can be taken from electrical, gas and water utility bills, metering data, IoT sensors and BMS data and so on. This along side AI and Machine learning enables data driven predictions, fills data gaps and checks for anomalies. Resulting in a as we have discussed, a real world Building Performance Model, Digital Twin of your assets.
- #8: New and Existing Building Decarbonisation Modernise and Digitise your Buildings
- #9: Robust energy modelling, retrofit scenario assessments, cost of intervention and value appraisal to support your asset investment plan Portfolio assessment, benchmarking and strategy Asset performance assessment and optimisation Asset Net Zero audits and retrofit investment plans
- #10: Retrofit Scenario testing Leveraging the dynamic energy simulation models, Energy Conservation Measures and wider climate transition scenarios can be tested, such as: Weather and climate scenarios (e.g. 2050 forecast) Operational changes (e.g. Heating & Cooling Setpoints) Occupancy changes (e.g. increased occupancy density) Fabric Upgrades (e.g. replacement glazing) Technology replacements (e.g. Lighting replaced with LEDs) Conditioning Upgrades (e.g. Boilers replaced with ASHPs) Adding Renewables (e.g. Installation of PV)
- #11: Additional analysis can be conducted informing decision making: Decarbonisation roadmaps – e.g. CRREM/ SBTi pathways Operational energy and carbon assessment Embodied carbon assessment CAPEX assessment and return on investment Energy Compliance – e.g. EPC / MEES/ MEPS
- #13: M&V = Measurement and Verification. It’s not fully IPMVP M&V but is in the style of that. Measures actual savings against the simulated baseline from IES Digital Twin. On a daily basis.
- #15: This study highlighted the
- #17: Image Source: https://www.cbreim.com/sustainability/the-economic-case-for-sustainability https://www.knightfrank.com/research/article/2022-09-27-how-green-buildings-add-value https://ukgbc.org/news/ukgbc-finds-significant-opportunities-being-missed-to-retrofit-commercial-buildings/ https://www.jll.co.uk/en/trends-and-insights/research/the-commercial-case-for-sustainable-buildings High energy design standards achieved at design are not always achieved during operation – performance gap The changing nature of buildings and the fact they involve people means operation drifts But in fact all buildings “drift” even those perfectly commissioned and tuned Users change settings HVAC performance degrades Equipment breaks or becomes faulty Energy models used at design but not in operation become a wasted digital asset