The Role of BEAM Plus in Building a Sustainable Hong Kong · The Role of BEAM Plus in Building a...
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The Role of BEAM Plus inBuilding a Sustainable Hong Kong
Ir Dr Eddy LauHead of Green Labelling, HKGBC
24 October 2018
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The Role of BEAM Plus in Building a Sustainable Hong Kong
Speaker:Eddy LauHead of Green LabellingHong Kong Green Building Council
Date: 15 March 2019
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Hong Kong 70 years ago
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Now
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We are better now …
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But behind such prosperity ….
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Which way are we going?
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Agenda
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1. The history
2. The concept
3. The policy
4. The change
5. The future
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1. The history
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Schemes that exist today
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BEAM
• Conceived 23 years ago
• Private sector initiative
• HK Poly + U of Wales Cardiff
• BREEAM UK as reference
• Initially for office buildings
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HK-BEAM 1/96
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Question to think about
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• Should GB rating scheme be led by the market or
should it be set by the Building Authority ?
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Features of BEAM Plus
• Consensus of the users
• Support from public & private sectors
• HK regulations as the baseline
• Pay due regard to HK characteristics
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2. The concept
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What’s the difference ?
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What’s the Difference ?
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“The Project shall comply with BEAM Plus requirements”
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Characteristics of GB rating
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1. Points are awarded for good practices.
2. Points aren’t deducted for bad practices.
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Recognition or Evaluation
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Limitations of rating tool
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1. Only a limited set of parameters.
2. Designers are also free to choose them.
3. Not a full appraisal of “theme and concept”.
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Theme and Concept
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Shape inspired from “Fujian Tulao”
Circle minimizes surface and material use
Colour represents natural material - earth
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An analogy
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An analogy
BEAM Plus
Bldg Energy Code
GB Award
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Question to think about
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• Should BEAM Plus be made mandatory ?
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Articulated Mix of Regulatory & Voluntary Instruments
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Anticipation of the Future
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3. The policy
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GFA incentive
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Latest figures released by Buildings Department
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Mandatory Disclosure
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BEAM project number rising sharply in 2011
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Review of GFA Concession Mechanism
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• GFA concessions are offered irrespective of BEAM Plus rating.
• Government is reviewing the policy.
• May introduce linkage to performance in future.
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Review of GFA Concession Mechanism
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Likely outcome:
• Higher emphasis on “building” than “E&M system”
• Gradual approach – no quantum leap is expected
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4. The change
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Credit Gold or above AllEU10d Commissioning report 1.00 0.72WU06 Effluent Discharge to Foul Sewers 1.00 0.69MA08b Avoid ozone depleting substance in insulation materials 1.00 0.68EU10a Commissioning Specifications 1.00 0.72MA08a Refrigerants (LCGWP + LCODP x 1e5 < 775) 1.00 0.67EU10c Commissioning (appoint agent, use approved forms) 1.00 0.72EU11a Operations and Maintenance Manual 1.00 0.73IEQ04 De-odourising system for refuse collection rooms 0.99 0.70SA13 Water Pollution During Construction 0.99 0.68SA10 Environmental Management Plan 0.99 0.69
EU11b Energy Management Manual 0.99 0.72IEQ02 Plumbing and Drainage (venting, access, water seal …) 0.98 0.71SA04 Site Design Appraisal (50% achievement of UDG) 0.97 0.67IEQ07 Indoor Sources of Air Pollution 0.97 0.71SA11 Air Pollution During Construction 0.96 0.66
IEQ11a Source control 0.95 0.66IEQ17 Interior Lighting in Areas Not Normally Occupied 0.95 0.61EU09 Energy Efficient Appliances 0.95 0.54SA12 Noise During Construction 0.94 0.65IEQ22 Access for Persons with Disability 0.94 0.66WU01 Annual Water Use 0.94 0.66SA03b Neighbourhood recreational facilities 0.93 0.62IEQ23a Amenities for the benefit of building users 0.92 0.62EU12 Metering and Monitoring 0.91 0.64
IEQ14b Performance with air-conditioning 0.90 0.46IEQ21 Indoor Vibration 0.89 0.55SA08a Wind amplification 0.89 0.54EU05 Lighting System in Car Parks 0.88 0.28
IEQ23b Amenities for improved operation and maintenance 0.88 0.61MA09 Regionally Manufactured Materials 0.88 0.53EU10b Commissioning plan 0.88 0.65IEQ09 Increased Ventilation 0.87 0.55
Credit Gold or above AllSA03a Provision of basic services 0.87 0.54IEQ01 Security 0.87 0.60SA15 Light Pollution 0.87 0.55IEQ06 Outdoor Sources of Air Pollution 0.85 0.60SA14 Noise from Building Equipment 0.85 0.54EU11c Operator training and O&M facilities 0.83 0.52SA06 Cultural Heritage 0.82 0.17WU05 Water Efficient Appliances 0.82 0.38EU01 Reduction of CO2 Emissions 0.81 0.51SA02b Public transport 0.79 0.53SA09 Neighbourhood Daylight Access 0.79 0.52IEQ03 Biological Contamination 0.79 0.47IEQ05a Construction IAQ management 0.75 0.48EU02 Peak Electricity Demand Reduction 0.71 0.48MA06 Sustainable Forest Products 0.71 0.39IEQ13a Temperature 0.70 0.43IEQ08 IAQ in Car Parks 0.70 0.25EU01P Option 2 Alternative route: Passive Design 0.68 0.67IEQ05b Filter replacement and flush-out 0.66 0.38EU03 Embodied Energy in Building Structural Elements 0.65 0.42SA08c Air Ventilation Assessment 0.62 0.36
BEAM Plus Credit Achievement Rate(2017 + 2018 up to Apr)
n (Gold or above): 69n (all ratings): 136
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Mitigating UHI Effect
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Sponge City + SuDS
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Minimizing car parking spaces
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Be a good neighbour
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Urban microclimate study
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Considerate construction
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Off-site precasting
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Reducing construction waste
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Recycled content in building materials
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Ground granulated blast-furnace slag(GGBS) partly replaces cement inprecast façades
Synthetic macro-fibre replaces reinforcement
for on-grade slabs
Reducing global warming from concrete
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Sustainable sourcing of materials
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Larger refuse rooms in buildings
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Natural Ventilation Design Guidelines
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Renewable Energy
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Water Conservation
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Water-efficient Irrigation
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Zero Irrigation System
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Advanced Techniques inIndoor EnvironmentalDesign
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Communal spaces with better quality
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Addressing Social Needs
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Amenity Features
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Amenity Feature
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Features Facilitating O&M
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Innovations
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Hostel:Smart meters and mobile apps
for residents (eco-bills at check-out)
Residential building:smart panel for home control
Innovations
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Hard-paved construction sites
BIM / electronic project management
Food waste handling system
Performance Enhancements
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Twin-tanks
EV charging parking spaces
Community engagement
Performance Enhancements
Two-level lighting
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Food waste machine
Performance Enhancements
Refuse compactor
BIM
Provision for low-carbon transport
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Biophilic design, even in commercialand office buildings
Emerging trends
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Neighbourhood-scale development, shared use of facilities
Emerging trends
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Passive design even fornon-domestic buildings
Emerging trends
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Solar shading for the interiorspaces AND external streets
Worthwhile design
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More appealing façadesbut still sustainable(i.e. low window-to-wall ratio)
Area for improvement
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5. The Future
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BEAM Plus NB v2.0
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Version 2.0 brings about the following improvements:
1) Certainty: Requirements are more clearly defined to reduceambiguity. Submittal requirements are standardized. Add prescriptive path as a base, study path for scoring higher.
2) Practicality: The tool separates the design-stage and completion-stage submittal requirements so that informationcan be progressively submitted.
3) Clearer guidance for different building types: Requirements for different types of buildings (e.g. residential, commercial, educational, etc.) are more clearly distinguished.
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1) “Performance Studies” requirements: e.g. site design appraisal, AVA, CFD, energy modelling, life cycle assessment, etc.
2) “Construction Process” requirements: e.g. construction site environmental management, testing & commissioning, etc.
3) “Primary Green Features” means permanent building featuresthat are checkable at the time of Occupation Permit (OP), e.g. building envelope, refuse rooms, central air-conditioning plant
4) “Secondary Green Features” means building features that areless permanent, e.g. lamps, water taps; OR features that are notyet checkable at time of OP, e.g. IAQ and noise measurements
Analysis of Credit Types
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Difference between old and new
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Observations from the bar chart
The new version has the following features:
• More scoring opportunities from Performance Studies. These include urban heat island study, outdoor thermal analysis, climate resilience study, renewable energy simulation, life cycle costing, visual quality analysis for biophilic design, etc.
• More scoring opportunities from Construction Process. These include engagement of green professionals within various teams, integrative design, consideration for buildability, considerate construction, document management system, BIM applications, etc.
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Global Trends
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• Smart building, e.g. BIM, on-line project collaboration, IoT, ABC (i.e. AI + Big data collection + Cloud processing)
• Industrialisation of construction (MiC / DfMA)
• Advancing Net Zero / Net Positive
• US WELL Building Standard / UK Home Quality Mark
• Environmental product declaration, embodied carbon, LCA
• New bldgs – closing the performance gap
• Extg bldgs – RCx, deep retrofit, real-time performance
• Beyond bldgs – neighbourhoods and infrastructure
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Information is enrichedeffective from 1 Jan 17
How does my building perform?
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Other developments
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• Volume certification program – in the pipeline
• On-line submission and automated assessment (e.g. BIM, e-Forms) – in the pipeline
• BEAM Plus for specific types of buildings – Data centres in progress. Schools - possible
• Fine-tune BEAM Plus to dovetail with future new GFA concession mechanism – possible
• Infrastructure green rating – more pilot projects are coming
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References
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Yau, Lau & Choi 2014, BEAM Plus Past, Present and Future
https://www.researchgate.net/publication/265554074_BEAM_Plus_-_Past_Present_and_Future
HKGBC 2017, Hong Kong: Green Building in Action
https://www.hkgbc.org.hk/upload/7.Resources/BEAMPlus_infographic/Green-Building-in-Action-18-EN-A4-Spread.pdf
HKGBC 2018, The Cream of BEAM Plus
https://www.hkgbc.org.hk/upload/References/Cream-of-BEAM-Plus-Paper---28-Aug-2018.pdf
HKGBC 2019, BEAM Plus On-line Exhibition Website
http://greenbuilding.hkgbc.org.hk/
Lau 2019, A new standard for green buildings is moving on (will be available under Feature at “HK Engineer” website in Apr 2019)
http://www.hkengineer.org.hk/program/home/index.php