Next Gen Rating Tools Project Research Program Professor Wasim - - PowerPoint PPT Presentation

Research Program Professor Wasim Saman

Next Gen Rating Tools Project

Next generation Rating Tools Project

17/10/ 2016 2

Project Participants:

University of South Australia CSIRO Department of Environment and Energy SA Government ASBEC Energy Inspection CSR Building Products

Project Stakeholders:

State and Territory Governments Local Governments Australian Building Codes Board BlueScope Steel Australian Building sustainability Association Australian Window Association Australian Institute of Architects Housing Industry association Property Council Energy Consumers Australia

Project Duration 2 years

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Project Objectives

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• To review and update assumptions for

contemporary lifestyles using available evidence base in all Australian climates.

• To incorporate a comfort metric and economic
• utputs.
• To broaden the scope of rating software to

include all major domestic energy end-uses.

• To incorporate solar energy, energy

storage technologies, and other demand management technologies.

• To incorporate advanced construction and

mechanical ventilation systems

• To improve usability through the development
• f CAD interoperability.
• To investigate the suitability for assessing

mandatory and best practice performance standards.

• To Investigate compliance issues
• To thoroughly validate and trial the design

tools to ensure the accurate assessment of energy and carbon impacts in all Australian

• climates. (Next Stage)

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Project Activities

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• A. Review assumptions and settings
• B. Cooling model improvements, comfort evaluation
• C. Developing holistic, CAD integrated design tool
• D. Review compliance issues
• E. Dissemination and integration into regulatory framework

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• A. Review assumptions and settings

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• Using available monitoring data and other

evidence to examine assumption of energy use patterns and temperature settings to review tool assumptions and reflect current energy use patterns

• Include all key energy consuming energy

services: heating/cooling water heating cooking, laundry…

House_3, Summer Peak Day 04 February 2003 Monitored Data and AccuRate 22,27.5,22.5 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 00:00 01:30 03:00 04:30 06:00 07:30 09:00 10:30 12:00 13:30 15:00 16:30 18:00 19:30 21:00 22:30 kW

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• B. Cooling model improvements, comfort evaluation

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• Monitoring data point out that higher star rating has not affected energy requirement for

cooling

• need to reassess the cooling model evaluation particularly in tropical/subtropical zones
• Need for an indicator to examine comfort level during extreme weather as well as for overall

annual energy needs for heating/cooling

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• C. Developing holistic, CAD integrated design tool

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CAD Integration Extending existing tools to include all major domestic energy use components Inclusion of rooftop generation/storage

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• D. Review compliance issues

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• Recent research has highlighted

the need for compliance processes

• Project will work with governments
• n procedures for improving

compliance with new tools

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• E. Dissemination and integration into regulatory framework

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Working with industry bodies, education providers and governments to Develop, test and roll out training materials, procedures Integrate into existing courses and programs Focus on the professions/trades involved in various stage of design, assessment, building and commissioning Using CRC communication channels to disseminate project outcomes

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Links with Relevant CRC Projects

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Advanced Comfort Index for Residential Homes A/Prof Alistair Sproul/CSR Validating and Improving the BASIX Energy Assessment Tool for Low-Carbon Dwellings Dr Lan Ding/ Kevin Yee High Performance Housing - Monitoring, Evaluating and Communicating the Journey Prof Peter Newman/ Josh Byrne Reframing Building Regulation Prof Peter Newman/Robert Enker Adelaide Living laboratory: Lochiel Park, Bowden and Tonsley Dr Kathryn Davidson Energy Fit Homes: Empowering Consumers Dr Nina Hall

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Questions? Wasim.saman@unisa.edu.au

Thank You

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Adelaide Living Laboratory: Lochiel Park, Bowden, Tonsley

Project Leader: Wasim Saman Start Date: October 2016 Duration: 4 years Budget:? Major Project Partners:

Next generation Rating Tools

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Department of Industry and Science University of South Australia University of NSW Queensland University of Technology CSIRO Energy Inspect Weeks Group Green Vision Developments Henley Homes SA Government, Renewal SA Victorian Building Authority CSR Australian Institute of Architects Association of Building Sustainability Assessors BlueScope Steel Sustainability House

Research Challenge:

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What do you get when you cross a national administrator, state governments, a scientific agency, non-profit industry organisations, software developers and house builders? NatHERS – an energy modeller’s nightmare.

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The construction and operation of buildings: – consumes up to 50% materials – uses up to 40% energy – causes around 40% GHG emissions – causes peak energy demand

• The rest of the world is moving forward

– UK - net zero carbon homes by 2016 – EU - nearly net zero energy buildings by 2020 – California - net zero energy by 2020 – South Korea - net zero energy by 2025

Research Challenge

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Project Objectives

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• To review and update all NatHERS

software assumptions for contemporary lifestyles in all Australian climates.

• To develop and incorporate comfort

metric and economic outputs.

• To broaden the scope of rating software

to include all major energy end-uses.

• To incorporate solar energy, energy

storage technologies, and other demand management technologies.

• To incorporate advanced construction

and mechanical ventilation systems

• To improve usability through the

development of CAD/BIM interoperability.

• To thoroughly validate and trial the

design tools to ensure the accurate assessment of energy and carbon impacts in all Australian climates.

• To investigate the suitability of the tool

for assessing mandatory and best practice performance standards.

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Deliverables

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Exhaustive consultation with industry, state and commonwealth governments and other stakeholders Deliverable

• National energy database and data analysis of available energy monitoring data.
• Developing a holistic, system integrated ZCH design approach building on existing tools for

building thermal modelling and appliance performance and use pattern data, including measured PV and solar thermal performance data and cost analysis

• Versions of the tool suitable for use by designers, material and appliance suppliers,

households and regulators

• Publishing training and educational material for up-skilling the building design, certification

and construction industry as well as technical papers and reports.

• Building the case for cost saving for building retrofits focusing on achieving near zero-energy

consumption and comfort for the occupant, as well as costs/benefits for builder/developer.

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A project participants' workshop was held in May 2013 which included a number of presentations from industry, government and research participants. Reviews of available monitoring data, energy rating needs and tools were presented. The workshop participants provided direction of future project plan.

Industry Engagement

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• Details on CRC Reports
• RP1006: Viable integrated systems for zero carbon housing Progress Report: 2013
• RP 1006: Viable Integrated Systems for Zero Carbon Housing: Lochiel Park Monitoring Case Study, April 2014

Peer reviewed publications related to the project:

• Saman, W. Y., (2013), Towards zero energy homes down under, Renewable Energy, Vol 49, pp211-215.
• Berry, S. R., Davidson, K. and Saman, W.Y., (2013), Defining zero carbon and zero energy homes from a

performance-based regulatory perspective, Energy Efficiency, paper DOI 10.1007/s12053-013-9225-7.

• Berry, S. R., Davidson, K. and Saman, W.Y., (2013), The impact of niche green developments in transforming

the building sector: The case study of Lochiel Park, Energy Policy, Vol 62, pp 646-655

• Alemu, T. A., Saman, W.Y. and Belusko, M. (2012), A model for integrating passive and low energy airflow

components into low rise buildings, Energy and Buildings, Volume 49, pp 148–157.

• Saman, W. Y., Mudge, L. , Whaley, D. & Halawa, E., (2012), Sustainable housing in Australia: monitored trends

in energy consumption, Smart Innovation, Systems and Technologies, Volume 12, pp 247-256, 3rd International Conference on Sustainability in Energy and Buildings, SEB'11;Marseilles, France. Details on conferences presented

• Saman, W.Y., (2014), Zero Carbon Housing: from a Target to Reality, Keynote presentation World Renewable

Energy Congress, London

• Berry, S., Whaley, D., Davidson, K. and Saman, W.Y. (2013), Do the numbers stack up? Lessons from a zero

carbon housing estate, Proc. World Renewable Energy Congress, Perth

• Whaley, D.M., Saman, W.Y. and Alemu, A.T. (2013) Integrated solar thermal system for water and space

heating, dehumidification and cooling, Proc. ISES Solar World Congress, Cancun, Mexico

• Saman, W. Y., Whaley, D. and Mudge, L. (2012) , Impact of distributed solar generation in low energy housing
• n the electrical grid, Proceedings World Renewable Energy Forum, Denver USA.

Outputs

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Details on the links with international /national - leading research groups similar to CRCLCL Direct: Queensland University of Technology Indirect Oxford University University College London Research Disciplines involved in the project

• Engineering
• Information Technology
• Psychology
• Economics
• Mathematic
• Construction technology and management

Scientific Collaborations

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Calculations of carbon mitigation (showing assumptions etc)

The project is expected to support regulatory and consumer move towards low carbon housing, leading to significant and sustainable carbon emission reduction through improved dwelling design and solar integration. Carbon emissions savings of 0.40Mt by 2020 and 7.6 MT by 2030 Assumptions for new dwellings:

Household energy saving 150 MJ/m2 per annum House size 200 m2 House construction in Aust 140000 GHG conversion factor (ave) 0.90 kgCO2-e/kWh Action Uptake % MJ saving Beta version released 0.1 4,200,000 Commercial version released 1 42,000,000 10% new housing by 2020 5 210,000,000 10 420,000,000

Carbon Mitigation

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Energy Consumption and Greenhouse Gas Emissions

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10 20 30 40 50 60 AUS AVG. DEWHA (2008) SA AVG. ESCOSA (2010) LP AVG. (monitoring)

Total Household Energy (GJ)

Average Annual Household Energy - purchased from Utilities

61.2% reduction

1 2 3 4 5 6 7 8 9 AUS AVG. ABS (2010) SA AVG. ESCOSA (2010) LP AVG. (monitoring)

Total Household Greenhouse Gas Emissions (T CO2-e)

Average Annual Household Greenhouse Gas Emissions - by location

64.5% reduction

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Increased costs

• Additional construction costs
• Additional technologies

New benefits

• Direct energy savings
• Reduced heating/cooling equipment needs
• Improved thermal comfort
• Positive contribution to GHG action
• Increased asset value

Key economic impacts

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Value Proposition bottom-line for Households

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Benefit $41,355 Cost $16,420 Net Present Value $24,935 Benefit/Cost Ratio 2.52

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Consumers Survey outcomes: 92% would like energy efficiency information as part of sale and lease processes 89% reported that an energy efficient home would be more attractive to buy or rent 56% would be willing to pay for energy efficiency information (44% would pay up to $250) 92% would like energy efficiency information in building inspection reports, 83% at house inspections and 72% in home sale/rental advertising

Energy Fit Homes: Empowering Consumers

Work Plan: Benchmark existing rating systems/ tools Understand consumer wants and needs Consult industry and government Develop an implementation pathway What information do consumers need about energy performance

• ffered for sale or rent?

At what decision points? From what sources? In what form?

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