RETROFITTING
FOR THE BUILT
ENVIRONMENT
Alan Dunn, Strategic Relationship Lead
Pete Sell, Operations Consultant
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About IES
Home to the largest building analytics team in the world
Retrofit Challenges
− Identifying buildings most in need
− Determining current energy and carbon building
performance
− Impact of fabric upgrades and changing building
systems
− Integrating renewables
− Monitoring and managing building performance
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Making Good Decisions
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Source: UKGBC. Building the case for net zero: retrofitting office buildings – Jan 2024
5
INTERIOR DESIGN
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IES’s Solution
− ApacheSim
− Minimal data required to start
− Assign Operations Profile
− Scalable - Existing and New
− Future Climate Scenarios or Future Energy
Prices
− Multi-Year Simulation
IES’s Solution
− Baseline – starting point
− Percentage and unit reductions for energy and
carbon
− Energy cost savings per intervention
− Compare scenarios – to match budgets and/or
targets
− Size and impact of solar panels
− How we monitor and manage the building
performance
− Ongoing evaluation
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IES’s Solution
− Create Retrofit Scenarios
− Identify, compare & inform decision making
− Create Local Area Development and
Investment plans
− Visualisation and reporting abilities
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Whole Life Building Performance Evaluation
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Next Steps
− Deeper Dive
− Ongoing Monitoring
− Calibrated Digital Twin
− Energy Networks
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Live
Demonstration
THANK YOU
Any Questions?
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Retrofitting for the Built Environment - IES

Editor's Notes

  • #4 Buildings are complex, constantly changing, dynamic systems​ Physical, meteorological, technological, and human components​ ​ The IES Digital Twin understands all these factors​
  • #5 External source (UKGBC)
  • #6 Tailor by market​ ​ IES Live offers an end-to-end consulting and software solution​ Gain access to our team of Building Performance Experts​ ​
  • #9 Refurbishment Cycle ​ Design/Retrofit to commissioning/fine- tuning to Ongoing operation ​ ​ Critical trigger points to ‘unlock’ higher levels of performance, are at:​ End of tenant lease(s)​ Vacant possession​ Standard maintenance and refurbishment cycles of building fabric or systems​ Externally imposed regulations such as MEES, Net-Zero Targets​ ​ Iterative, performance-based approach to Net-Zero investments:​ Net-Zero & Operational Energy Modelling at Design​ Effective Commissioning​ IES Live Set-Up​ Continued In Use Performance Evaluation​ Make the Business Case for Improvements​ Re-Commissioning after Retrofit Improvements​ Measurement and Verification of Retrofit Performance​ Continued In Use Performance Evaluation​ Keep Optimised Buildings on track​ Identify next round of Improvement Strategies​
  • #11 POLL Q: What is currently the greatest barrier to decarbonising industrial sites? Cost/Return on Investment Internal/C-Suite/colleague buy in External/third party support Supply chain Other priorities