This project has received funding fromthe European Union‘s Horizon 2020research and innovation programmeunder grant agreement No 817991

SUPSI-Industry day 2019

BiPVBOOST: cost reduction of BIPV for efficient market penetration.

Prof. Francesco FrontiniHead of Building System Sector

Dr. Pierluigi BonomoHead on Innovative Building Skin Team

WP5. Cost reduction based on performance levels and advanced standardization schemes for BIPV

- Goals and framework- Results achieved so far in BIPVBOOST

- state-of-the-art in BIPV standardization- missing gaps - main routes for new qualification procedures

- Roadmap of next steps

AGENDA

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© SUPSI

BIPV INNOVATION FRAMEWORK…DYNAMIC

Building skin

Construction

CustomizationAesthetics QualityTesting

Costs Performance

• Aesthetics: Flexibility and customization

• Construction: PV+ building skin quality

• Cost-reduction: cost-effectiveness (PV and construction components)

• Quality, reliability and a clear normative is needed for market penetration

© SUPSI

Reference:E. Saretta, P. Bonomo, F. Frontini, Active BIPV Glass Facades: Current Trends of

Innovation, Glass Performance Days, Tampere, Finland, 2017

WHY A DEDICATED BIPV QUALITY?

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PV shadings at Kingsgate House, Chelsea, UK (photo: P. Bonomo)

31.10.2019

MISSION OF SUPSI BIPV TEAM

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Validation and testing

Sensitization & Education

Research & Development

Build

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uild

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• Applied R&D of systems and tools for supporting the implementation of PV in the built environment

• Validation, optimization and testing of new BIPV concepts

• Education, dissemination and technological transfer

STATE OF ART IN EU BIPV NORMATIVE FRAMEWORK

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- Standardization framework for BIPV elements is a main barrier - Compliance with the regulations from the photovoltaic (Low

Voltage Directive, 2006/95/EC) and the construction sector (CPR 305/2011) is necessary

- BIPV must also comply with the regulations in the country of use in order to ensure the required performances and, in some cases, to be CE marked as a construction product.

- EN 50583 (IEC 63092), proposes a first step to regulate BIPV elements as conventional building and photovoltaic products.

- However, the coupled PV and construction performance of an active building skin system can significantly differ from a traditional construction system or a non-integrated PV module. (PV+BUILDING is not BIPV) The sum in not enough!

STATE OF ART – AN EXAMPLE

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Glazing requirements e.g. EN 14449, EN 12543, EN 12600, …

Building skin standards e.g. EN 13830 for Curtain walling, ETAG 002 for SSG, …

Building standardsrelevant national building regulation and standards (e.g. Eurocode EN 1990-1…-9)

+ PV standardsIEC 61215, IEC 61730, …

WHICH MECHANICAL REQUIREMENTS FOR A BIPV FACADE?

CURRENT LIMITS : LACK OF HARMONIZATION

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-1

0

1

2

3

4

5

0 500 1000 1500 2000 2500

Deflect. P1 Deflect. P2 Deflect. P3

Deflect. P4 Deflect. P5 Deflect. P6

• Conventional PV module: IEC 61215: Pass/Failed Criteria based on a prescriptiveapproach and pre-defined load scenario

• BIPV building skin system: performance-based and local based approach for actions type (snow, wind, earthquake…), requirements (depending on system type) and limit-states of performance (resistance, deflection, displacement, etc.)

© SUPSI

THE GAP…BIPV IS NOT «PV+BUILDING»

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Mechanical resistance and stability of BIPV

IEC 61215Electro-technical approach

EurocodesBuilding approach

Prescriptive approach Performance-based approach Innovation

?

BIPV

TOWARDS A NEW APPROACH FOR BIPV PERFORMANCE ASSESSMENT

Saretta, E., Frontini, F.& Bonomo, P. (2016) Laminated BIPV glass: approaches for the integration in the building skin. In Engineered Transparency 2016: Glass in Architecture and Structural Engineering

BIPV QUALITY …FROM A PV MODULE TO BUILDING SKIN

10© Lithodecor

Warning reduntant requirementsinfluenced requirements

(PV and construction interact)

ETAG 002 IEC 61730

EMERGING ASPECTS FROM CURRENT STATUS

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Complexity: international/EU /national/local level The unique EU BIPV norm (EN50583) is not compulsory There is not a clear trend/policy to CE-mark BIPV products

according to CPR 305/11 Trends for Big stakeholders (few producers/companies):

Use of existing PV+glass+building standards on their experience/risk Reference at EU/international/local normative according to projects,

countries (UK, USA, Germany, France, etc.)and specific requirements(SSG, fire safety, etc.)

Qualification of reference module families in some case/worst scenariosand extension in other similar buildings

Possibilily to invest in high cost/long time for certification in big projects Trends for Minor stakeholders

They avoid BIPV due to regulation uncertainces, high costs for currentqualification schemes

They take risks in real applications without a proper qualification scheme

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WP5 OBJECTIVES

• To identify missing gaps within the current standardization work in relation to the most relevant BIPV performance.

• To define the main routes for the development of appropriate qualification approach and procedures to support BIPV market introduction with better defined framework.

• To develop performance-based testing for BIPV products, with a focus on electrical and energy performance under non-conventional scenarios, mechanical performance and fire safety.

• Indoor and outdoor performance validation

31.10.2019

STATE OF THE ART IN BIPV STANDARDIZATION.

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SUPSI, TECNALIA, CSTB.

PV requirements

EN 50583-1: 2016Photovoltaics in buildings - Part 1: BIPV modules

EN 50583-2 : 2016Photovoltaics in buildings - Part 2: BIPV systems

BIPV requirements

CPR 305/2011 for other building requirements.

PV module

PV plant E.g. hEN, ETA, EAD, local norms for materials (e.g. glass standards),

components (e.g. curtain wall façade), different requirements (e.g. g-value,

mechanical safety)

Other BIPV standards

under development(e.g. IEC PT 63092, ISO 18178, etc.)

Ongoing

Task 15 IEA PVPS

S.T. «C»

Real conditions

Building requirements

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MISSING GAPS RELATED TO BIPV PERFORMANCE

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SUPSI, TECNALIA, CSTB.

Reference:P. Bonomo, F. Parolini, F. Frontini, E. Saretta, M. Caccivio, G. Bellenda, M. Machado, S. Boddaert, PERFORMANCE ASSESSMENT OF BIPV SYSTEMS: FROM CURRENT NORMATIVE FRAMEWORK TO NEXT DEVELOPMENTS,

EUPVSEC 2019

31.10.2019

MISSING GAPS RELATED TO BIPV QUALITY

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SUPSI, TECNALIA, CSTB.

Reference:P. Bonomo, F. Parolini, F. Frontini, E. Saretta, M. Caccivio, G. Bellenda, M. Machado, S. Boddaert, PERFORMANCE ASSESSMENT

OF BIPV SYSTEMS: FROM CURRENT NORMATIVE FRAMEWORK TO NEXT DEVELOPMENTS, EUPVSEC 2019

Missing gaps at different levels: At different technological levels (component, system, building) At different normative levels (international, EU, national, local) At different standardization bodies level (IEC, ISO, CENELEC, CEN, etc…) At process stage level (design, manufacturing, installation, O&M) At requirements level (fire, mechanical, electrical, etc.) At approach level (pass/fail in PV…vs….PBA in Building sector)

How can we improve and impact this field? 1. Clarify the framework (Task 15 IEA PVPS) 2. Support stakeholders making available effective reference

procedures for the market (WP5 BIPVBOOST)

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1. BIPV STANDARDIZATION FRAMEWORK

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TASK 15 IEA PVPSSupported by

Swiss Federal Office of Energy

Reports available at:http://www.iea-pvps.org

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2. FROM MISSING GAPS TO A NEW APPROACH

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Key-points

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PERFORMANCE-BASED APPROACH

PERFORMANCE-BASED QUALIFICATION

As a matter of principle, performance based procedures do notprescribe the value of the characteristics, nor the criteria fordeciding on the suitability of a particular product, but provide themeans to assess them.

Prescriptions (threshold) VS Performance request (approach)

Resistance > 2’400 Pa VS Resistance > Actions

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EXAMPLE OF LIMIT STATES CLASSIFICATION

DEFINITION OF BIPV LIMIT STATES TO DESCRIBE BIPV BEHAVIOR

Limit states design

Serviceability / Operating limit state (SLS)

Ultimate limit state (ULS)

Safeguard limit state (SfLS)

BIPV under the actions can change the behavior but whenaction ends it returns to the previous point without damageand it maintains the same functionality

BIPV under the actions can break itself but it must maintainsecurity for people and things.Following the event it does not maintain the initialfunctionality.

BIPV collapses when exceed ultimate limit state.There is not more safety

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TOWARDS A PERFORMANCE-BASED QUALIFICATION

Single test procedures

TEST PROCEDURES

TOWARDS

Standard test condition Operative conditions

Combined test procedures

Operative conditions Post-failure conditions

SfLSSLS

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FOCUS ON BIPVBOOST PRODUCTS

Building skin cladding

Technologicalsystem

Building typology

ARCHETYPE

CLUSTER

CLASSIFICATION B: WP1- Archetypes

1 Semi-Transparent insulated glazing

Technological system Curtain wall, SkylightCladding Glazed, Transparent, Insulated

2 Semi-Transparent laminated glazing

Technological system

Double skin, Canopy, Railing, Louvre

Cladding Glazed, Transparent, Laminated

3 Opaque glazed element

Technological system

Rainscreen façade, Spandrel , Cold roof, Railing , Louvre

Cladding Glazed, Opaque, Laminated

4 Opaque no-glazed element

Technological system

Rainscreen façade,Cold roof, Railing, Louvre

Cladding No glazed, Opaque

5 Opaque prefab element

Technological system Prefab roofs or facadesCladding Multifunctional, Opaque

FROM PV MODULE…TO BIPV PRODUCT FAMILIES

31.10.2019

Deliverable D5.1-M12D5.1 Report on standardization, performance risks and identification of related gaps for a performance-based qualification in BIPV

Paper EUPVSEC 2019P. Bonomo et al, PERFORMANCE ASSESSMENT OF BIPV SYSTEMS: FROM CURRENT NORMATIVE FRAMEWORK TO NEXT DEVELOPMENTS

Article PV MagazineP. Bonomo, F. Frontini, Why isn’t there more BIPV? Roadmap for implementing a cost-effective solar construction sector in Europe

RESULTS WWW.BIPVBOOST.EU

22 https://www.pv-magazine.com/2019/09/28/the-weekend-read-establishing-a-cost-effective-bipv-sector-in-europe/

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POTENTIALS AND EXPECTED FOLLOW-UP

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FOLLOW UP

Market Impact

COST IMPACT

Normative impact

StandardizationImplementation

Task 15 IEA PVPSEnabling Framework for the Acceleration

of BIPV

31.10.2019

CONSLUSIONS: ROADMAP OF NEXT STEPS

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BIPVBOOST WP5 (2020-2022): Testing procedures definition- M24 (Sept, 20) Testing procedures final validation –M36 (Sept, 21) Test of project product families–M36 (Sept, 21)

TASK 15 IEA PVPS 2.0 (2020-2024) Pre-normative international research on BIPV

characterization methods

BIPVBOOST WP6 (2020-2022) Development of a BIM-based software design platform Development of simulation models for BIPV

Project Partners

Project Coordinator

www.bipvboost.eu

Project Partner

This project has received funding from the European Union‘s Horizon 2020 researchand innovation programme under grant agreement No 817991. The sole responsibilityfor the content of this publication lies with the authors. It does not necessarily reflectthe opinion of the European Commission. The European Commission is notresponsible for any use that may be made of the information contained therein.

Thank you

Jose Maria Vega de Seoane TECNALIASimon BoddaertCSTB

Dr. Jose Maria Vega de SeoaneTECNALIAjosemaria.vega@tecnalia.comwww.tecnalia.com

#BIPVBOOST BIPV GROUP