delivering sustainability digitally - data & sustainability
TRANSCRIPT
PowerPoint Presentation
04.10.2016
Data and Sustainability
Dr Judit Kimpian
R&D01design projects
AL BAHR TOWERS
KARACHI PORT TRUST TOWERS
TORONTO METRO
MASDAR CONFERENCE HALL
DUBAI METRO +247
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1. MASDAR INSTITUTE OF TECHNOLOGY
2. KEYNSHAM CIVIC CENTRE
3. DARWEN ACADEMY
4. HARRIS ACADEMY
5. HOLLAND PARK SCHOOL
6. MASON HALL
7. PETCHEY ACADEMY
8. GREEN BLOCK
465research PROJECTSR&D03
1324568
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1. KOLACHI ENCLAVE TOWERSPARAMETRIC SINGLE MODEL FOR DESIGN COORDINATION
2. EMIRATES CABLE CAR LONDONPARAMETRIC MODEL FOR FABRICATION OPTIMISATION
3. RIYADH TOWERPARAMETRIC MODEL - FORM OPTIMISATION FOR WIND
4. TALL BUILDING MODELSMART MODEL LINKING QUANTITIES, COST & ENVIRONMENTAL INDICATORS
265ADVANCED MODELLING PROJECTSR&D02
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Tall Building Model | Generate Tower from target net area and occupancy
Tall Building Model | speeding up brief evaluation
Over 20 peer reviewed papers, UKGBC, AJ100, GreenBuild, CIBSE etc awards recognitionClimate Change AdaptationTSB Metadata project
Virtual Information Modelling
Carbon Management in Design and Construction Practice
Predicted vs Operational Performance of Buildings
Co-funded research worth over 2M over 4 years
Tackle the problem at different levels of detail6
Source: Artist Maria ArceoEnvironmental quality:Fresh airLight HeatCoolthAcoustics
Spatial:Visual integrationPrivacySafetyConnectivityAdaptability
Low maintenance:Simple
Reduce the resources required to provide
a healthy, comfortable, safe, environment over a building's life spanEU Sustainable Buildings Directive?RESOURCE CONSUMPTION ACQUIRED PENALTIES
What do we mean by building performance?7
Why energy | the Three pillars of building performance
Data logging for IEQ oC CO2 %RH VOC Meters and submetersreconciledOccupier Survey and interviews
measuring building performance
What do we mean by building performance?9
Drivers for better building performance
CO2
Climate changeCapital and whole life costRegulatory targetsOccupant experience
Regulatory context3%MinEnergy
Energy Performance of Buildings DirectiveEnergy Efficiency DirectiveNZEBEED Public stock refurbishment targetEnergy Savings Opportunities SchemeMinimum Energy Efficiency Target
EU Resource efficiency indicators
Well building standard
Recent research studiesLCBA & LCBP
ahR USP | Compliance vs predicting measured energy use
EPC
As Built Building & System Properties
+ All equipment
ApplianceITLiftsExternal lightsSpecial equipmentEtc. see list in CBControls
TSB Metadata project:
Offer a baseline energy consumption estimateRefine estimate pending completeness of dataOffer cost estimates of potential savings/increased costs
+ As built Factors
Actual system and fabric performance inc controlsCommissioningMeteringEnergy management setup
+ Management Factors
HoursOccupancyZoning, set points, schedulesFM regimeMaintenanceOccupant engagementActual weather & climate
UKGBC Task group reports
Stock level data17
Performance Gap | calculated vs operational data medians
100kg CO2/m2/yr
US around half of buildings have more than a 25% performance gapA 2011 study analyzing the designbuild project delivery method in the United States shows designbuild was used on more than 43 percent of total construction value projects in 2004We need this feedback loop to inform design and innovation
http://www.rics.org/site/download_feed.aspx?fileID=4688&fileExtension=PDF
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Sector by sector data | calculated vs achieved performance
SchoolsHeat: 1.48Electricity: 1.9
UniversitiesHeat: 1.2Electricity: 2.3OfficesHeat: 1.59Electricity: 1.71
ActualCalculated
Scale of the gap in the UK5Bn spent on new buildings each year, these buildings use 2-3x more energy than designed2014 Green Construction Board Report
ACTUAL VS DESIGN COMPARISON: QUOTIENTS
Innovate UK CarbonBuzz Forecast BetaAHR|Aecom|CIBSE Automated tool to adjust EPCs to reflect risk factors
WHY DATA? AHR INNOVATE UK DETAILED BUILDING PERFORMANCE EVALUATIONS
Detailed Building level data establish how these buildings perform compared to expectations23
AHR BPE projects compared to published and anonymised projects
WHY DISCLOSURE? | complex servicesLarge full mech vent~100K potential saving
Large mixed mode~ 27K potential saving
Large full mech vent~71K potential saving
Large mostly nat vent~62K potential saving
Small full mech vent~4K
Large full nat vent zero carbon target
Large full nat vent zero carbon target
Academy 1 actualAcademy 1 potential
Academy 2 actualAcademy 2 potential
Academy 3 actualAcademy 3 potential
School 1 actualSchool 1 potential
School 2 actualSchool 2 potential
Innovation Centre 1 actual
Innovation centre 2 actualInnovation centre 2 potential15-44% potential savings | on average 30-40K/yr/building
IMPACT OF DESIGN ON BUILDING PERFORMANCE | BUS Results
Academy 360 PetcheyStockport LoxfordBrine Leas Pool IC Tremough IC
17% 44% 40% 39% 15% ~10% ~5%247 kWh/m 290 kWh/m2 211kWh/m2 166kWh/m2 125kWh/m2 ? ?
INNOVATE UK BPE OVERALL PERFORMANCE GAP
Source: Burman, E. 2016. Building Performance Gap: A Way Forward, Building Performance Evaluation Understanding the Performance Gap, University College London, 16 February 2016.
Performance gap and seasonal use
Source: Burman, E. 2016. Building Performance Gap: A Way Forward, Building Performance Evaluation Understanding the Performance Gap, University College London, 16 February 2016.
PERFORMANCE GAP AND VENTILATION TYPE
Source: Burman, E. 2016. Building Performance Gap: A Way Forward, Building Performance Evaluation Understanding the Performance Gap, University College London, 16 February 2016.
PERFORMANCE GAP AND COMPLEXITY
Source: Burman, E. 2016. Building Performance Gap: A Way Forward, Building Performance Evaluation Understanding the Performance Gap, University College London, 16 February 2016.
PERFORMANCE GAP AND PROCUREMENT ROUTE
Source: Burman, E. 2016. Building Performance Gap: A Way Forward, Building Performance Evaluation Understanding the Performance Gap, University College London, 16 February 2016.
Conclusions | Costs and risks associated with the Performance GapCapital cost of unused/underutilised equipment: Metering, BMS, sensors and controls, AHU inverters, actuators, LZCs, etc. can amount to 2-5% of capital cost
Misplaced value engineering: fabric performance and air-tightness, all openings, floor to floor heights, thermal mass, entrance lobbies, seasonal commissioning, daylighting, controls, training, manuals & log book compliance or architecture?
Increased management, maintenance and energy costs: between 15-44% of total annual energy costs could be saved amounting to potentially tens of thousands of pounds per year
Mitigation costs: ~ 50% of annual energy costs Soft Landings with energy disclosure approximately 0.1% of construction budget
Profit loss of consultants and contractors
Productivity loss for occupiers and FM
It adds up
The cost of building performance evaluations50% of our time went on gathering energy data
20% on chasing client, consultant and contractor teams for design vs as-built data
25% on analysis of the data gathered and additional energy modelling
5% on gathering occupant feedback
Targeting operational performance
New types of contracts are needed to enable data sharing from start to end
Timber windows with 150mm acoustic louvresFloor to floor heights 3.05mVent voids Lighting: light shelves, task lighting and voids to NorthThermal Mass incorporating cooling pipe work
Architectural wins
Keynsham civic centre | Key stats
96% Reduction in energy
81%GAS USE REDUCTION kWh
67%ELECTRICITY USE REDUCTION kWh
Performance contracting | architecture is a key beneficiary
Why Disclosure | continuous improvementKey Performance IndicatorsPredictionValidation
Investment KPIs
Use of BIM to facilitate feedback
AHR Climate Change Commitment06STATEMENT
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EVOLVING REPORTING STANDARDS with measurement and verification
DEC-96%-80%-80%
Energy disclosure led by North American cities
PhiladelphiaNew York CityChicagoSeattle
San FranciscoColumbia university graphic
Washington DCAustin, Texas
Go and look at the data demand it. It can reveal remarkable things!42
With Hattie Hartmann and Sofie PelsmakersTHANK YOU
RECOMMENDATIONSUpdate Schedule of Services & RIBA PoW overlay to better target BP
Create RIBA scopes for minimum and research BPE
Update RIBA PQQ & briefing guidance for clients, consultants, contractors
Update RIBA guidance on research in practice
Incorporate building performance methodologies in course validation
Use CarbonBuzz as a Conduit for research and expertise & to link up with other industry bodies
RIBA HQ case study