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Status Report BIPV 2020
A practical handbook for
Solar buildings’ stakeholders
Scan the QR code to download the 
BIPV Status Report 2020 or connect 
to solarchitecture.ch for more info
BIPV Status Report Word Cloud
Agenda
 Lesson learned in 40 years of evolution
Paolo Corti, SUPSI
 Market and value chain: risks and opportunities
Philippe Macé, Becquerel Institute
 Cost evaluation of BIPV: cost breakdown and extra cost
Elina Bosch, Becquerel Institute
 Which perspective for BIPV?
Pierluigi Bonomo, SUPSI
 Q&A Session
Lesson learned
in 40 years of
evolution
Paolo Corti
Researcher, Innovative Building Skin Team
Swiss BIPV Competence Centre
Wohnanlage Richter. e‐periodica.ch
Library P. Fabra. Roberts and 
Guariento
MFH in Männedorf. Solaxess
Mercado Bejar. Onyx Solar
EXPO 2020 Dubai. Sunovation CP Pregassona. Alsolis
The house becomes
a solar collector
Wohnhaus Solaris, Zurich. HBF Architects
Sergio Los, architect and thinker
Rural House Galley. CSEM
Adaptation & balance:
new & tradition
Product and mounting system database
The challenge now is to support the
BIPV market growth
Town Hall, Freiburg. Ingenhoven Architects
Market & value
chain: risks and
opportunities
Philippe Macé
Head of Business Intelligence at Becquerel 
Institute
Grosspeter Tower, Basel. NICE Solar
 High variety of BIPV applications are
possible.
 For each of these applications, multiple
BIPV products exist on the market,
with their own specifications.
 In the segment of residential buildings,
cold roofs are the most common BIPV
installations.
 In the segment of commercial
buildings, façade BIPV systems are
much more common, as well as BIPV
skylights.
The BIPV market
is heterogeneous
4
1
2
3
Cold roof 
Ventilated façade
External integrated devices (louvers, balustrades,…)
1
2
3
3
6
5
4
5
6
Skylight
Prefabricated system
Curtain wall
Source: SUPSI
The BIPV market
peaked about 10
years ago
71
186
417
1’200
2’171
637 679
496
363
154 160 136
210
0
500
1’000
1’500
2’000
2’500
2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
MW 
 Historical BIPV market grew
significantly from 2008 to 2011.
 This can be explained by generous
support schemes for BIPV.
 BUT the definition of BIPV applied in
those years is incomparable to today’s
definition.
 The modification and/or disappearance
of these incentives caused the BIPV
market to sharply slow down.
Historical annual BIPV market in Europe
Source: Becquerel Institute
Perspectives for the
European BIPV market
are favourable
347
483
726
0
100
200
300
400
500
600
700
800
2021 2022 2023
MW
 The BIPV market should keep on
growing, potentially reaching 500
MWp by 2022.
 Main markets: France, Netherlands,
Switzerland, United Kingdom.
 All BIPV segments are expected to
grow.
 In particular, the residential
segment is expected to lead the
market, via BIPV roofing solutions.
Projected annual BIPV market in Europe (in MWp)
Source: Becquerel Institute
The BIPV market could
soon represent a business
opportunity of >1B€
725
960
1369
0
200
400
600
800
1000
1200
1400
1600
2021 2022 2023
Million €
 In 2021, the BIPV market should
represent a total value of more
than 600 M€ at least.
 It could pass the 1 B€ threshold in
2022, and the 1,5 B€ by 2023.
 This steady BIPV market growth
should be led by cost reductions,
increased customization
possibilities, and a pressure to
improve buildings’ sustainability.
Value of the projected annual BIPV market in 
Europe (in €)
Source: Becquerel Institute
Stakeholders’ overview
 There is no market-pull: usual
actors of the construction sector
have only a low interest in BIPV
adoption.
 Policymakers also have a
tremendous influence on the
adoption of BIPV, but only have a
medium interest.
 Difference in both interest and
influence between building
occupants and building owners,
which can hinder the process.
 New actors with both skills in
construction and PV have a strong
influence as they could bridge the
knowledge gaps.
INTEREST OF STAKEHOLDERS
LOW
HIGH
MEDIUM
LOW HIGH
Grid operators
Maintenance
Recycling companies
Facility managers
General contractors
Architects
Project investors
Policymakers
(BI)PV 
manufacturers & 
suppliers
INFLUENCE OF STAKEHOLDERS
Construction 
companies
Building occupants
BIPV system 
installers
Building owner
Experts on both PV 
and construction 
aspects
Influence‐Interest stakeholders’ matrix relative to 
the adoption of BIPV in a project
The value proposition 
of BIPV can seem 
blurry, especially due 
to the cost gap with 
conventional PV and 
construction 
materials
Lack of knowledge & 
resistance to change 
within the building 
sector, creating 
difficulties to 
collaborate
Lack of standardized 
product qualification 
procedures
Other investment 
strategies can be 
more cost‐efficient to 
reach nZEB 
requirements
Key remaining challenges & weaknesses
How to solve it?
Education, e.g. through guidelines
Digital tools
How to solve it?
Detailed project’s cost
competitiveness assessment
Strengthening of nZEB regulation
How to solve it?
New procedures
How to solve it?
Detailed project’s cost
competitiveness assessment
 Design technical systems that favour an easy reparability
and replaceability of components
 Think modular and prefabricated to reduce costs
 Develop standards combining both electrical and
construction features
 Consider BIPV as early as possible in the development
process
 Support digitization of procedures
How to boost the BIPV market?
Cost evaluation
of BIPV: cost
breakdown and
extra cost
Elina Bosch
Business Analyst at Becquerel Institute
Copenhagen Inter. School. C.F. Moller Architects
What is competitiveness for BIPV?
 Construction component
 Construction system
 Electricity generating unit
 Investment
 On average, BIPV roof components are
more expensive than conventional roof
construction elements
 In many cases, the cheapest BIPV
products can come at a lower cost
than high-end conventional
construction materials (e.g. slate tiles)
Cost evaluation of
BIPV: as a roof
construction
component
Tailor‐made BIPV module – Average component cost
In‐roof mounted conventional PV module – Average 
component cost
Solar tile – Average component cost
Conventional roof construction components –
Component cost range
Low‐end 
concrete tiles
High‐end metal 
sheets
Cost evaluation of
BIPV: as a facade
construction
component
 On average, BIPV facade components
are more expensive than conventional
facade construction elements
 Yet, the cheapest BIPV products can
come at a lower cost than high-end
conventional construction materials
(e.g. stone)
a‐Si‐based curtain wall – Average component cost
c‐Si‐based curtain wall – Average component cost
CIGS‐based ventilated facade – Average component 
cost
Conventional facade construction components –
Component cost range
a‐Si‐based ventilated facade – Average component 
cost
c‐Si‐based ventilated facade – Average component 
cost
Low‐end 
fibrocement
High‐end 
stone
Cost evaluation of
BIPV: as a roof
construction
system
 Most conventional roofing solutions
can be challenged by BIPV solutions.
 In particular, the BIPV solutions based
on “in-roof mounting systems” can be
very competitive
 Tailor-made BIPV solutions are more
expensive but can provide the
advantage of a better aesthetical
integration, and possibly additional
building-related functionalities.
CIGS on metal sheet ‐ Average system cost
Tailor‐made BIPV system – Average system cost
In‐roof mounted conventional PV system – Average 
system cost
Solar tile – Average system cost
Conventional roof construction system – System cost 
range
Low‐end 
metal sheets
High‐end 
fibrocement
Cost evaluation of
BIPV: as a facade
construction
system
 BIPV façade systems can be
competitive with some conventional
systems, in particular high-end
systems.
 Average façade system costs are based
on a wider range of costs due to the
variety of projects’ characteristics (size,
complexity, type and thickness of the
modules). a‐Si‐based curtain wall – Average system cost
c‐Si‐based curtain wall – Average system cost
CIGS‐based ventilated facade – Average system cost
Conventional facade construction system – System cost 
range
a‐Si‐based ventilated facade – Average system cost
c‐Si‐based ventilated facade – Average system cost
Low‐end 
metal
High‐end 
insulated 
glass
Total cost and revenue of ownership
approach
This approach allows to determine whether an investment in a BIPV system is
attractive or not, compared to investing in a competing conventional building
envelope solution
REVENUES
* Initial investment
Extra cost of BIPV compared
to a conventional
construction solution
* Operation and
maintenance costs
* Savings on the
electricity bill for self-
consumed electricity
* Excess electricity fed-
back to the grid
COSTS
Competitiveness
[€/m²] ;
When positive, it indicates that it is worth investing the
extra costs associated to the BIPV system since they will
be compensated by the extra revenues
Total end user cost Extra cost
Installation & 
development
Mounting
structure
BoS
Module
Offset 
construction 
material cost
€/m²
Extra cost
Fixed cost
Determining the
extra cost
 Allows to take into account the
multifunctionality of BIPV
 Allows to compare easily and rapidly
the competitiveness of BIPV compared
to a conventional construction system
Typical residential rooftop
‐ Installed BIPV capacity : 6‐8 kWp 
‐ Surface covered by the system : 50 m²
‐ Annual self‐consumption rate : 30%
BIPV tiles
In‐roof mounted conventional PV system
Roofing BIPV solutions in the residential
segment are globally already competitive.
Generated electricity largely covers the
marginal extra cost due to BIPV and even
generates revenues of more than 200€
per installed square meter of BIPV (over
the entire lifetime of the system), in the
case of an “in-roof mounting system”.
Competitiveness of
residential BIPV
roof solutions
CIGS ventilated facade
c‐Si ventilated facade
Typical commercial facade:
‐ Installed BIPV capacity : 36‐41 kWp 
‐ Surface covered by the system : 270 m²
‐ Annual self‐consumption rate : 90%
Compared with BIPV systems on roofs:
 non-optimal irradiation conditions on the
façade
 substantially higher than average end user
costs
The Netherlands & France:
 Quite low compensable retail electricity
prices
 Less optimal irradiation than in southern
European countries
Italy:
 High irradiation
 Relatively high retail electricity prices.
Switzerland:
 BIPV specific direct incentives
 Relatively generous feed-in premium.
Competitiveness of
commercial BIPV
facade solutions
Dr. Pierluigi Bonomo
Head of Innovative Building Skin Team
Swiss BIPV Competence Centre
Which
perspective for
BIPV?
Photo: LVMH
Many perspectives
Kingsgate House, Chealsea. Photo: Pierluigi Bonomo
 Architecture
 Product Technology
 Manufacturing
 Regulatory framework
 Digital process
 Cost Competitiveness
 Knowledge/Awareness
“Solar cells are like the leaves 
in autumn…”
Architect
“Solar cells are permanently 
shaded”
Electric Engineer
Technology and
manufacturing
Top: TISO. Photo: SUPSI. Bottom: BIPV facade under construction in Lugano. Photo: Pierluigi Bonomo
 Integrated design and
manufacturing
 Construction and
electric joint innovation
 Flexibility & automation
in production line
 Systems evolution for
building skin
 Market readiness and
successful products
“BIPV refers to systems and 
concepts in which the 
photovoltaic element takes, 
in addition to the function of 
producing electricity, the role 
of a building element”
1982
2021
 PRODUCT:
multifunctional, cost-
competitive solutions
 QUALITY: streamline the
qualification and testing
process for products
 PROCESS: BIM-based
digital collaboration
“bringing down the cost of 
multifunctional building‐
integrated photovoltaic 
(BIPV) systems”
www.bipvboost.eu
Photo: Onyx Solar
Research,
demonstration &
market
 Green Deal &
Renovation Wave
 Renewable Energy
Directive (REDII)
 Energy Efficiency
Directive (EED)
 Energy Performance of
Buildings Directive
(EPBD)
 Construction Products
Regulation (CPR)
Source: EnerBIM 
“just as with climate 
change, the pandemic 
underlines that no matter 
how much we are part of 
the cause, we can be part 
of the solution”
F. Timmermans
Policies, towards a
EU framework for
BIPV
 Thanks to the
interdisciplinary initiative,
solar progressed from
satellites to buildings
 A co-creation platform of
architects, engineers,
industries and designers is
already on ground
 BIPV calls for a collective
effort to imagine and build
a future that is sustainable
Source: EnerBIM 
“I want NextGeneration 
EU to kickstart a 
renovation wave ... But 
this is not just an 
environmental or 
economic project: it needs 
to be a new cultural 
project for Europe”
Ursula Von der Leyen
https://europa.eu/new‐european‐bauhaus/about‐initiative_en
BIPV,
interdisciplinary
movement
Which perspective?
“Architecture depends on its time.
Technology and architecture are so
closely related. Our real hope is that
someday the one will be the
expression of the other”.
L. Mies van der Rohe, 1950
BIPV Matchmaking Event
Invitation
The H2020 PV Impact project is organizing its 5th matchmaking
event, aiming to foster interactions between PV research and industry
stakeholders and facilitate the development of new innovative and
collaborative projects with the construction sector.
https://pvimpact.eu/matchmaking‐events/Online‐Matchmaking‐Event‐Building‐
Integrated‐PV‐BIPV/
Q&A Session
Scan the QR code to download the 
BIPV Status Report 2020 or connect 
to solarchitecture.ch for more info

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2020 status report building integrated photovoltaics BIPV

  • 1. Status Report BIPV 2020 A practical handbook for Solar buildings’ stakeholders Scan the QR code to download the  BIPV Status Report 2020 or connect  to solarchitecture.ch for more info
  • 3. Agenda  Lesson learned in 40 years of evolution Paolo Corti, SUPSI  Market and value chain: risks and opportunities Philippe Macé, Becquerel Institute  Cost evaluation of BIPV: cost breakdown and extra cost Elina Bosch, Becquerel Institute  Which perspective for BIPV? Pierluigi Bonomo, SUPSI  Q&A Session
  • 4. Lesson learned in 40 years of evolution Paolo Corti Researcher, Innovative Building Skin Team Swiss BIPV Competence Centre Wohnanlage Richter. e‐periodica.ch Library P. Fabra. Roberts and  Guariento MFH in Männedorf. Solaxess Mercado Bejar. Onyx Solar EXPO 2020 Dubai. Sunovation CP Pregassona. Alsolis
  • 5. The house becomes a solar collector Wohnhaus Solaris, Zurich. HBF Architects Sergio Los, architect and thinker
  • 7. Product and mounting system database
  • 8. The challenge now is to support the BIPV market growth Town Hall, Freiburg. Ingenhoven Architects
  • 9. Market & value chain: risks and opportunities Philippe Macé Head of Business Intelligence at Becquerel  Institute Grosspeter Tower, Basel. NICE Solar
  • 10.  High variety of BIPV applications are possible.  For each of these applications, multiple BIPV products exist on the market, with their own specifications.  In the segment of residential buildings, cold roofs are the most common BIPV installations.  In the segment of commercial buildings, façade BIPV systems are much more common, as well as BIPV skylights. The BIPV market is heterogeneous 4 1 2 3 Cold roof  Ventilated façade External integrated devices (louvers, balustrades,…) 1 2 3 3 6 5 4 5 6 Skylight Prefabricated system Curtain wall Source: SUPSI
  • 11. The BIPV market peaked about 10 years ago 71 186 417 1’200 2’171 637 679 496 363 154 160 136 210 0 500 1’000 1’500 2’000 2’500 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 MW   Historical BIPV market grew significantly from 2008 to 2011.  This can be explained by generous support schemes for BIPV.  BUT the definition of BIPV applied in those years is incomparable to today’s definition.  The modification and/or disappearance of these incentives caused the BIPV market to sharply slow down. Historical annual BIPV market in Europe Source: Becquerel Institute
  • 12. Perspectives for the European BIPV market are favourable 347 483 726 0 100 200 300 400 500 600 700 800 2021 2022 2023 MW  The BIPV market should keep on growing, potentially reaching 500 MWp by 2022.  Main markets: France, Netherlands, Switzerland, United Kingdom.  All BIPV segments are expected to grow.  In particular, the residential segment is expected to lead the market, via BIPV roofing solutions. Projected annual BIPV market in Europe (in MWp) Source: Becquerel Institute
  • 13. The BIPV market could soon represent a business opportunity of >1B€ 725 960 1369 0 200 400 600 800 1000 1200 1400 1600 2021 2022 2023 Million €  In 2021, the BIPV market should represent a total value of more than 600 M€ at least.  It could pass the 1 B€ threshold in 2022, and the 1,5 B€ by 2023.  This steady BIPV market growth should be led by cost reductions, increased customization possibilities, and a pressure to improve buildings’ sustainability. Value of the projected annual BIPV market in  Europe (in €) Source: Becquerel Institute
  • 14. Stakeholders’ overview  There is no market-pull: usual actors of the construction sector have only a low interest in BIPV adoption.  Policymakers also have a tremendous influence on the adoption of BIPV, but only have a medium interest.  Difference in both interest and influence between building occupants and building owners, which can hinder the process.  New actors with both skills in construction and PV have a strong influence as they could bridge the knowledge gaps. INTEREST OF STAKEHOLDERS LOW HIGH MEDIUM LOW HIGH Grid operators Maintenance Recycling companies Facility managers General contractors Architects Project investors Policymakers (BI)PV  manufacturers &  suppliers INFLUENCE OF STAKEHOLDERS Construction  companies Building occupants BIPV system  installers Building owner Experts on both PV  and construction  aspects Influence‐Interest stakeholders’ matrix relative to  the adoption of BIPV in a project
  • 16.  Design technical systems that favour an easy reparability and replaceability of components  Think modular and prefabricated to reduce costs  Develop standards combining both electrical and construction features  Consider BIPV as early as possible in the development process  Support digitization of procedures How to boost the BIPV market?
  • 17. Cost evaluation of BIPV: cost breakdown and extra cost Elina Bosch Business Analyst at Becquerel Institute Copenhagen Inter. School. C.F. Moller Architects
  • 18. What is competitiveness for BIPV?  Construction component  Construction system  Electricity generating unit  Investment
  • 19.  On average, BIPV roof components are more expensive than conventional roof construction elements  In many cases, the cheapest BIPV products can come at a lower cost than high-end conventional construction materials (e.g. slate tiles) Cost evaluation of BIPV: as a roof construction component Tailor‐made BIPV module – Average component cost In‐roof mounted conventional PV module – Average  component cost Solar tile – Average component cost Conventional roof construction components – Component cost range Low‐end  concrete tiles High‐end metal  sheets
  • 20. Cost evaluation of BIPV: as a facade construction component  On average, BIPV facade components are more expensive than conventional facade construction elements  Yet, the cheapest BIPV products can come at a lower cost than high-end conventional construction materials (e.g. stone) a‐Si‐based curtain wall – Average component cost c‐Si‐based curtain wall – Average component cost CIGS‐based ventilated facade – Average component  cost Conventional facade construction components – Component cost range a‐Si‐based ventilated facade – Average component  cost c‐Si‐based ventilated facade – Average component  cost Low‐end  fibrocement High‐end  stone
  • 21. Cost evaluation of BIPV: as a roof construction system  Most conventional roofing solutions can be challenged by BIPV solutions.  In particular, the BIPV solutions based on “in-roof mounting systems” can be very competitive  Tailor-made BIPV solutions are more expensive but can provide the advantage of a better aesthetical integration, and possibly additional building-related functionalities. CIGS on metal sheet ‐ Average system cost Tailor‐made BIPV system – Average system cost In‐roof mounted conventional PV system – Average  system cost Solar tile – Average system cost Conventional roof construction system – System cost  range Low‐end  metal sheets High‐end  fibrocement
  • 22. Cost evaluation of BIPV: as a facade construction system  BIPV façade systems can be competitive with some conventional systems, in particular high-end systems.  Average façade system costs are based on a wider range of costs due to the variety of projects’ characteristics (size, complexity, type and thickness of the modules). a‐Si‐based curtain wall – Average system cost c‐Si‐based curtain wall – Average system cost CIGS‐based ventilated facade – Average system cost Conventional facade construction system – System cost  range a‐Si‐based ventilated facade – Average system cost c‐Si‐based ventilated facade – Average system cost Low‐end  metal High‐end  insulated  glass
  • 23. Total cost and revenue of ownership approach This approach allows to determine whether an investment in a BIPV system is attractive or not, compared to investing in a competing conventional building envelope solution REVENUES * Initial investment Extra cost of BIPV compared to a conventional construction solution * Operation and maintenance costs * Savings on the electricity bill for self- consumed electricity * Excess electricity fed- back to the grid COSTS Competitiveness [€/m²] ; When positive, it indicates that it is worth investing the extra costs associated to the BIPV system since they will be compensated by the extra revenues
  • 24. Total end user cost Extra cost Installation &  development Mounting structure BoS Module Offset  construction  material cost €/m² Extra cost Fixed cost Determining the extra cost  Allows to take into account the multifunctionality of BIPV  Allows to compare easily and rapidly the competitiveness of BIPV compared to a conventional construction system
  • 25. Typical residential rooftop ‐ Installed BIPV capacity : 6‐8 kWp  ‐ Surface covered by the system : 50 m² ‐ Annual self‐consumption rate : 30% BIPV tiles In‐roof mounted conventional PV system Roofing BIPV solutions in the residential segment are globally already competitive. Generated electricity largely covers the marginal extra cost due to BIPV and even generates revenues of more than 200€ per installed square meter of BIPV (over the entire lifetime of the system), in the case of an “in-roof mounting system”. Competitiveness of residential BIPV roof solutions
  • 26. CIGS ventilated facade c‐Si ventilated facade Typical commercial facade: ‐ Installed BIPV capacity : 36‐41 kWp  ‐ Surface covered by the system : 270 m² ‐ Annual self‐consumption rate : 90% Compared with BIPV systems on roofs:  non-optimal irradiation conditions on the façade  substantially higher than average end user costs The Netherlands & France:  Quite low compensable retail electricity prices  Less optimal irradiation than in southern European countries Italy:  High irradiation  Relatively high retail electricity prices. Switzerland:  BIPV specific direct incentives  Relatively generous feed-in premium. Competitiveness of commercial BIPV facade solutions
  • 28. Many perspectives Kingsgate House, Chealsea. Photo: Pierluigi Bonomo  Architecture  Product Technology  Manufacturing  Regulatory framework  Digital process  Cost Competitiveness  Knowledge/Awareness “Solar cells are like the leaves  in autumn…” Architect “Solar cells are permanently  shaded” Electric Engineer
  • 29. Technology and manufacturing Top: TISO. Photo: SUPSI. Bottom: BIPV facade under construction in Lugano. Photo: Pierluigi Bonomo  Integrated design and manufacturing  Construction and electric joint innovation  Flexibility & automation in production line  Systems evolution for building skin  Market readiness and successful products “BIPV refers to systems and  concepts in which the  photovoltaic element takes,  in addition to the function of  producing electricity, the role  of a building element” 1982 2021
  • 30.  PRODUCT: multifunctional, cost- competitive solutions  QUALITY: streamline the qualification and testing process for products  PROCESS: BIM-based digital collaboration “bringing down the cost of  multifunctional building‐ integrated photovoltaic  (BIPV) systems” www.bipvboost.eu Photo: Onyx Solar Research, demonstration & market
  • 31.  Green Deal & Renovation Wave  Renewable Energy Directive (REDII)  Energy Efficiency Directive (EED)  Energy Performance of Buildings Directive (EPBD)  Construction Products Regulation (CPR) Source: EnerBIM  “just as with climate  change, the pandemic  underlines that no matter  how much we are part of  the cause, we can be part  of the solution” F. Timmermans Policies, towards a EU framework for BIPV
  • 32.  Thanks to the interdisciplinary initiative, solar progressed from satellites to buildings  A co-creation platform of architects, engineers, industries and designers is already on ground  BIPV calls for a collective effort to imagine and build a future that is sustainable Source: EnerBIM  “I want NextGeneration  EU to kickstart a  renovation wave ... But  this is not just an  environmental or  economic project: it needs  to be a new cultural  project for Europe” Ursula Von der Leyen https://europa.eu/new‐european‐bauhaus/about‐initiative_en BIPV, interdisciplinary movement
  • 33. Which perspective? “Architecture depends on its time. Technology and architecture are so closely related. Our real hope is that someday the one will be the expression of the other”. L. Mies van der Rohe, 1950
  • 34. BIPV Matchmaking Event Invitation The H2020 PV Impact project is organizing its 5th matchmaking event, aiming to foster interactions between PV research and industry stakeholders and facilitate the development of new innovative and collaborative projects with the construction sector. https://pvimpact.eu/matchmaking‐events/Online‐Matchmaking‐Event‐Building‐ Integrated‐PV‐BIPV/