BUILDING ACTION SYMPOSIUM COP23, Bonn, 2017 · BUILDING ACTION SYMPOSIUM COP23, Bonn, 2017 “How to achieve the Paris Agreement? Identifying key ingredients to achieving a low-carbon,

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BUILDING ACTION SYMPOSIUM

COP23, Bonn, 2017

“How to achieve the Paris Agreement? Identifying key ingredients to achieving a low-carbon, energy efficient buildings and construction

sector”

Breakout group IV – Building data capture and management as a catalyst for moving the sector onto a 2°C pathway.

COP23: A. Passer, T. Lützkendorf and R. Frischknecht 09.11.2017 1

u www.agnhb.tugraz.at

09.11.2017

COP23: A. Passer, T. Lützkendorf and R. Frischknecht

IEA EBC Annex72: Assessing and influencing life cycle related environmental impacts caused by buildings: how can data help?

|COP23: A. Passer, T. Lützkendorf and R. Frischknecht

Context

09.11.2017 3

Grey carbon ?

Embodied CO2 emissions ?

Embodied carbon ?

Embedded carbon ?

Carbon footprint ?

Global Warming Potential ?

“To harness innovation, enterprise and investment to fast track the development and deployment of climate solutions that will build future

economies with net zero greenhouse gas emissions, in an effort to limit the rise of global temperatures to 1.5°C above pre-industrial levels.” (COP21)

The goal:

• netZeroEnergy

• netZeroEmissions

• netZeroImpacts?


Data needs of different stakeholders

09.11.2017 4

I N F L U E NC E

R E Q U I R E M E N T

I N F O R M A T I O N

S P E C I A L C O N S U L T A N T

F O RL C A S E R V I C E S

T O O L & D A T A B A S E

D E V E L O P E R

P R O D U C T M A N U F A C T U R E R

S U S T A I N A B I L I T Y A S S E S S M E N T

& C E R T I F I C A T I O N

C O N T R A C T O R S & B U I L D E R S

P R O C U R E M E N T

V A L U E R S

C L I E N T & I N V E S T O R

D E S I G N P R O F E S S I O N A L &

C O N S U L T A N T

P O L I C Y M A K E R

Sour

ce: I

EA E

BC A

nnex

57,

TU

Gra

z


Expand scope: Building life cycle

09.11.2017 5

Sour

ce: I

EA E

BC A

nnex

72,

TU

Gra

z

A Life Cycle approach is required!

|

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embodied impacts

operational impacts

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Life Cycle Performance

09.11.2017 6

Sour

ce: I

EA E

BC A

nnex

72,

TU

Gra

z

Net-Zero life cycle performance is the goal!

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IEA EBC Annex 57 - Evaluation of Embodied Energy and CO2 Equivalent Emissions for Building Construction

§ Methodology, Comparability and Documentation

§ Guidelines for Designers and Consultants, Construction Products Manufacturers, Policy Makers and Educators


Embodied impacts

09.11.2017 7

Download: www.iea-ebc.org/projects/completed-projects/ebc-annex-57/

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IEB EBC Annex 72: Assessing Life Cycle Related Environmental Impacts Caused by Buildings

§ Methodology (ST1), Workflows and tools (ST2), Case studies and benchmarks (ST3), LCA databases (ST4)

§ Guidelines for Design Decision Makers and Policy Makers


Full life cycle

09.11.2017 8

Visit: http://www.iea-ebc.org/projects/ongoing-projects/ebc-annex-72/

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Large scale building assessment to derive Paris compatible benchmarks for buildings


Case study sample to derive benchmarks

09.11.2017 9

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Requirement

09.11.2017 10

6 DL I F E C Y C L E

5 DC O S T S

3 DG E O M E T R Y

M O D E L D E S I G NP R O C E S S

4 DT I M E

ENVIRONMENT

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BIM as common tool!

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Data is only useful if,

• It is able to highlight the relevant issues and challenges

• It supports stakeholders in the assessment and improvement

• It is reliable and tested

• It fits the question/problem

The availability and reliability of appropriate data becomes a prerequisite for calculating, assessing, influencing and proving climate-neutrality of buildings!


Conclusions

09.11.2017 11

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We need:

• Evolution of scope: Integration of full life cycle to avoid emission leaking (focusing on either construction or operation) and to identify benefits and trade-offs along the life cycle of buildings (production, construction, operation, dismantling)

• Establishment of additional building characteristics: GHG emissions in the life cycle / carbon footprint and other environmental impacts

• Provision of life cycle based information on products (LCA/EPD/PEF) to the public and incentives for low carbon manufacturing

• Comprehensive case study evaluation for analysis of interdependencies and development of design recommendations

• Derivation of Paris compatible benchmarks for buildings (different building types); they may be dynamic and be lowered with time

• Empirical data on the economic advantages of nZEB buildings (RICS)


Recommendation

09.11.2017 12

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Conclusions from iiSBE report (2017):

Its sheer impossible for the Built environment to stay within a max CO2 emission budget under a 2 degree scenario, unless the built environment will:

• Change for and the primarily use of biobased materials

• Limit materials input in general and for retrofit for ZEB specifically

• Have the building supply industry change firstly for renewable energy based production

• Have household energy demand to be reduced significantly

• Speed up development of new RE conversion technologies


iiSBE report: A (near) 0-CO2 built environment

09.11.2017 13


Thank you

09.11.2017 14

“Our scarcest resource is not oil, metals, clean air, capital labor, or technology. It is our willingness to listen to each other and learn from each other

and to seek the truth rather than seek to be right.”Donella Meadows

Thank you for your attention!

The Austrian participation in IEA EBC Annex 72 is co-funded by following institutions and programs:


WG Sustainable Construction, TU Graz – Mission

09.11.2017 15

Visit: http://agnhb.tugraz.at/

Working Group Sustainable Construction

Institute of Technology and Testing of Building MaterialsGraz University of Technology

“Our research is dedicated to sustainability assessment methods and the workflows within the building design process to improve the applicability of assessment methods

in the built environment as well as their successful implementation within full scale demonstration projects.

In our interdisciplinary projects our foci lie on the optimization of the environmental and economic performance by the use of life cycle assessment, life cycle costing,

system analysis and multi- criteria assessment methods within digital design processes.”

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• Sustainable design and process integration§ Life Cycle Assessment (LCA)

§ Life Cycle Cost Assessment (LCCA)

§ Multi-Criteria Decision Making (MCDM)

§ Building Information Modeling (BIM)


WG Sustainable Construction, TU Graz – Research Agenda

09.11.2017 16

Visit: http://agnhb.tugraz.at/

BUILDING ACTION SYMPOSIUM COP23, Bonn, 2017 · BUILDING ACTION SYMPOSIUM COP23, Bonn, 2017 “How to achieve the Paris Agreement? Identifying key ingredients to achieving a low-carbon,

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