High-performance, curved photovoltaic facade
Modern renovation of a building
Old building in need of renovation
The Marburg Medical Care Center has an enormous power consumption due to the use of special diagnostic equipment. Therefore, in the course of modernizing the existing building, a power-generating photovoltaic façade was used to produce sustainable energy. Architect Hagen Plaehn cleverly transformed the multi-story building into a modern yet functional, sustainable structure. Photos: © Christian Quast, Sonneninititative e.V.
Special architecture with seamless building-integrated photovoltaics
The photovoltaic façade consists of individually manufactured, frameless glass-glass modules SUNOVATION eFORM color. In order to meet the special features of the existing building, modules and substructure are custom-made. The glazed facade rounding of the building, as well as the rest of the facade, is equipped with active photovoltaic modules. For this purpose, curved glass-glass modules of 2 to 3 m² each were manufactured in five different heights and a radius of 2.5 meter.
Key technical data
BIPV facade |
317 m² |
Glass-glass-modules |
SUNOVATION eFORM color HPB 161 pcs. |
|
28 different geometries & sizes |
Electrical power |
55 kWp nom. |
Construktion
The black photovoltaic facade is designed as a ventilated curtain wall. SG frames are attached to the back of the glass-glass modules for easy hooking into the substructure. For the curved glass-glass modules, precisely fitting curved SG frames were manufactured and glued to the curved elements. The result is an actively power-generating edgeless rounded photovoltaic facade. This construction method is made possible by the special production process SCET (SUNOVATION Cell Embedding Technology). Here, the module composite is produced by means of a cold filling process, which enables stress-free embedding of the photovoltaic cells in curved glass.
Roofing of a railroad station with transparent glass-glass-modules
Sustainable energy production in Vienna
Transparent canopy with integrated photovoltaics
The newly built canopy at Matzleinsdorfer Platz in Vienna is equipped with building-integrated glass-glass modules mady by the German manufacturer SUNOVATION. The expert for building-integrated photovoltaics produced 163 transparent photovoltaic modules in 24 individual shapes and sizes and individually adapted the transparency level within the modules. The multifunctional photovoltaic canopy aesthetically provides protection while generating electricity at the point of consumption.
Customized photovoltaic canopy
The 467 m² building-integrated photovoltaic canopy of the railroad station visually consists of two elements. Narrower areas are covered by cantilevered wing roofs, the wider areas by a construction with integrated photovoltaic skylights. For visual reasons and to increase the energy yield, the modules of the cantilevered roof structure are equipped with bifacial PV cells. The PV cells of the skylight modules were individually arranged: An adjusted spacing of the cells in the areas visible from below visually creates the illusion of a module limited to this space. In the area of the staircase, the cell spacing and thus the degree of transparency were increased in favor of a higher incidence of light. The glass structure of the modules was configured according to static and external requirements at the project site - the overhead glazing is made of laminated safety glass, is walkable and easy to clean.
Key technical data
BIPV roof |
467 m² |
Glass-glass-modules |
SUNOVATION eFORM clear 163 pcs. |
|
24 different sizes & geometries |
Electrical power |
59 kWp nom. |
Atrium roofing with integrated photovoltaics
Insulated BIPV glazing of a federal research institute
Power-generating 2-fold insulated glazing
Transparent glass-glass modules SUNOVATION eFORM clear installed in the new building of the Federal Research Institute in Dossenheim. The transparent photovoltaic modules in two sizes were designed as 2-fold insulated glazing and cover the atrium in the center of the building. The atrium is the architectural heart of the building designed by hotz + architekten. It connects different parts of the building and is flooded with light through round ceiling openings that provide a view of the translucent BIPV roofing. Photos: © Atelier Altenkirch
Individual degree of transparency with maximum performance
The 420 m² building-integrated solar roof is configured with a transparency level of 50%. Due to its high-performance crystalline solar cells, the BIPV system achieves an installed power of 39 kWp despite this high degree of transparency, SUNOVATION's special silicone encapsulation process (SCET - SUNOVATION Cell Embedding Technology) enables the direct integration of diodes and electrical connections into the module composite to maximize PV performance. This allows power losses due to partial shading to be reduced and module surfaces to be used more efficiently. As with all transparent modules made by SUNOVATION, the edge connector „Connect 7“ was used for an invisible electrical interconnection of the glass-glass modules. Visually, the modules are completed by a discreet edge printing.
Key technical data
BIPV roof |
420 m² |
Glass-glass-modules |
SUNOVATION eFORM clear ISO 152 pcs. |
|
2 different sizes |
Electrical power |
39 kWp nom. |
Construction
The building integrated glass-glass modules are designed as 2-fold insulated glazing with laminated safety glass. They are installed horizontally in an add-on construction for glass roofs. The use of stepped glass with an asymmetrical glass structure resulted in a visually appealing flush construction with maximum light incidence. The insulating glass modules can be entered for cleaning purposes and are particularly easy to clean due to a flush installation.
Art Museum GES-2 with transparent Building Integrated Photovoltaics
Sustainable architecture at its best
Customized glass-glass-modules
The former power station located in the center of moskow was restored according to a design by the renowned architect Renzo Piano Building Workshops and transformed into an imposing "cathedral of light". In the process, the historic appearance of the building was taken up and modernized according to the principles of sustainable architecture. 4,578 pieces of building-integrated photovoltaic modules in 212 different geometries were installed. Photos: © Michel Denancé
Exclusive design
An exclusive 5,421 m² glass roof made of building-integrated photovoltaics with an installed capacity of ~ 500 kWp replaces the original glass roof. Renzo Piano chose semi-transparent glass-glass modules from Sunovation, which were individually manufactured according to his designs. He opted for a degree of transparency of ~ 20% as well as an individual design of the PV cells. Their appearance was refined in shape and color by imprints in shades of gray and white on different glass layers.
Key technical data
BIPV Roof |
5,421 m² |
Glass-glass-modules |
SUNOVATION eFORM 4,578 pcs. |
|
212 different geometries & sizes |
Electrical power |
503 kWp nom. |
Construction
The Crystalline high-performance glass-glass modules are fixed in specially manufactured stainless steel brackets. These were attached to the substructure via an axis, allowing the photovotaic roofing to be opened. Despite the very high snow loads at the project site in Moscow, some elements span > 2 m. Statically, these dimensions only were feasible due to the specially adapted glass structure from SUNOVATION
Sustainability Pavilion - Dubai Expo
Unique roof construction with customised BIPV modules
Energy generating roof and Shading
One of the largest BIPV solar roofs in the world was designed by Grimshaw Architects for the EXPO in Dubai and completed in early 2020.
The glass roof, which covers an area of over 8,000 m², consists of individual, trapezoidal solar modules that produce massive amounts of energy and at the same time shade and cool the extensive exhibition rooms inside. In addition, the 18 large solar trees in the exhibition area highlight the theme of regenerative energy.
Key technical data
BIPV Canopy & 18 Solar Trees |
12,620 m² |
Photovoltaic glass-glass-modules |
SUNOVATION eFORM clear VSG trapezoid - 5,080 pcs. |
|
332 different geometries & sizes |
Electrical power |
2.1 MWp nom. |
Construction
The trapezoidal glass elements were preinstalled in element frames in structural glazing design. Electrical cabling is invisibly installed within the profiles, starting from the edge connections at the glass edge of the glass-glass modules. The solar trees are partially equipped with bifacial cells.
EXPO Site
The UAE Sustainability Pavilion is one of the main theme buildings of the EXPO and will subsequently, permanently be used as an exhibition and museum building.
Mobility Station with photovoltaic facade
Glass-glass-modules in large format
Multifunctional mobility station
This multifunctional building designed by slb_architekten und ingenieure is all about sustainability, e-mobility and cycling. It serves as a monitored bicycle parking garage and offers accompanying products and services on these topics. The design of this unique mobility station was selected in the national competition "Climate protection through cycling".
Sustainable charging stations
The translucent facade consists of a combination of large-format facade glasses and glass-glass modules in a frosted glass look. XL solar glass modules with a height of > 5 m and an area of up to 6.7 m² each were individually manufactured in various sizes and geometries. The cell layout is adapted to the structure of the building. The electricity generated is used to supply e-bike charging stations and lighting for the mobility station.
Key technical data
BIPV facade |
221 m² |
Photovoltaic glass-glass-modules |
SUNOVATION eFORM clear - 44 Stk. |
|
33 different geometries & sizes |
Electrical power |
25 kWp nom. |
Construction
The large-format glass-glass modules are vertical linearly supported. Its weight is intercepted by steel consoles. With the use of edge connections on the glass edges of the modules, the electrical cabling is completely concealed in the mounting profiles.
Funding
This project has been funded by the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU - in German) as part of the national climate protection initiative.
Insulated BIPV facade & roof
Custom-designed glass-glass-modules
Modern office building
Sustainable working in a modern office building with a pleasant atmosphere. The facade of the central entrance area as well as the atrium were equipped with translucent, individually adapted solar glass modules. The individually manufactured glass-glass modules are integrated into the building envelope and serve as roofing, shading and energy supplier. Since the modules are designed as double insulating glazing, they have excellent thermal properties. At the same time, their transparency ensures sufficient light to pass through for a light-flooded interior.
Key technical data
BIPV facade & roof |
320 m² |
Glass-glass-modules |
SUNOVATION eFORM clear ISO 149 pcs. |
|
36 different geometries & sizes |
Electrical power |
33 kWp nom. |
Construction
The multifunctional glass elements were installed in a standard post and rail system. The electrical cabling is invisibly installed within the profiles.
Black BIPV facade
Modern energy generating facade
Elegant look
A frameless photovoltaic facade has been adapted individually to an existing building. The result is an elegant, power-generating facade that is not recognizable as such at first glance. 399 glass elements in 15 different sizes and geometries were optimally integrated into the existing building structure. The use of integrated diodes optimizes the yield of this BIPV facade.
Key technical data
BIPV facade |
370 m² |
Glass-glass-modules |
SUNOVATION eFORM color black - 399 pcs. |
|
15 different geometries & sizes |
Electrical power |
41 kWp nom. |
Annual energy yield |
25 MWh |
Construction
The substructure for this back-ventilated curtain facade has been anchored in the concrete walls with retaining brackets and combined with a structural glazing design. The facade elements have been attached to the retaining profiles with 2-component-silicone and were individually mounted on 4 points in so-called bolt slides.
Design roofing of an underground parking entrance
Light-flooded and sustainable
Integrative design solution
The private client of this special underground parking entrance was looking for a bright and sustainable solution for the roofing of his entrance that blends into the surroundings harmoniously and at the same time satisfies his desire for a special design solution beyond standard ideas.
Distinctive shadowing
For an ideal integration into the surrounding nature a green substructure was provided for this underground parking entrance. Matching semi-transparent glass-glass modules with emerald green design cells were created for this purpose. Viewed from above they perfectly embed themselves into the overall picture. The entire design-potential, however, is only visible inside the entrance – the distinctive and impressive play of the modules' shadowing is created in the sunshine.
Key technical data
Photovoltaic canopy elements |
SUNOVATION eFORM Crystal – 18 pcs. – with laminated safety glass
Level of transparency: 55 %, PV laying: 45 %
PV cells 6 inch polycrystalline, emerald green
|
Construction
The photovoltaic roofing elements are linearly supported on a customary roof construction of aluminum profiles.
Multifunctional building envelope in corporate color
Blue glass facade with LED elements
Innovation and sustainability
The company Omicron was looking for an innovative and sustainable facade in the colors of their logo. With this in mind, a very elegant glass facade with „blue“ as the main color was designed, in which highly efficient solar cells were embedded. The technical affinity and innovative strength of the company are reflected in the integrated LED glass elements in corporate colors.
Implementation
This multifunctional facade consists of 510 glass-glass elements and 90 LED glass elements, which are specifically authorized for a vertical assembly in facades. All elements are individual, customer-specific designs, which optimally integrate into the building structure in terms of geometry, size and structure. One particular highlight is the specially programmed LED play of corporate colors, which has been attached by means of LED stripes that are attached to the rear side. This spectacularly sets the facade in the limelight during night. The production and installation took approx. 6 months.
Key technical data
Electricity generating curtain facade |
780 m² |
Photovoltaic facade elements |
SUNOVATION eFORM Color Blue – 510 pcs. |
LED glass elements |
SUNOVATION ledFORM Color Blue, Red & Yellow – 90 pcs. |
Nominal electrical power |
92 kWp |
Calculated annual energy yield |
66.000 kWh/year |
Facade construction
The substructure consists of approx. 1,000 extruded profiles and more than 1,200 retaining brackets, which have been anchored in the wooden wall. The glass elements have been attached to the retaining brackets in structural glazing with 2-component-silicone and were individually mounted on 4 points in so-called bolt slides.
Curved facade elements
Adaptive design to achieve maximum integration
Futuristic Design
The new office building designed by the Architekturwerkstatt Vallentin was implemented according to the passive-plus-energy house standard. It excels through its futuristic design and the combination of down-to-earth and innovative materials. One remarkable design element are the striking, individually designed photovoltaic facade elements, which have been attached to the railings of the floating corridor.
Sophisticated details
One particular feature of the semi transparent BIPV modules is the finishing of the rear side of the modules by means of selective screen-print. By imitating the front cell optics, the module surface visible from the inside ideally integrates itself into the design concept. The highlight, however, are the two curved photovoltaic elements on the curved structure of the triangular shaped atrium. The approximately 3m² large glass-glass modules are bent in a radius of approximately 3.5m. By means of their adaptive design, they perfectly harmonize with the building line and optimally blend into the overall design.
Key technical data
Photovoltaic facade elements |
84 m² SUNOVATION eFORM Crystal – 26 pcs. – each 3,25m² SUNOVATION eFORM Arc – 2 pcs. – 3m² - bend radius 3,5 m
All elements have a rear cover of the PV cells with screen print decor
|
Construction
The large-scale photovoltaic glass elements were installed into a custom-made metal frame construction. Thanks to the space saving positioning of the electrical connections on the edge of the glass, the connecting cables could be installed invisibly in the frame construction. The electric cabling of the PV facade glass was installed horizontally within the frame construction.
Exclusive gas station roofing
Transparent and roof-integrated
Gas station of the future
The initiator of this project, an ecologically committed operator of a major gas station chain, aimed to transfer the subject of environmental consciousness into the market for fossil energy. The assignment here was to design an exclusive, design-oriented roofing solution with integrated photovoltaic.
Transparence, protection and communication
Project-specifically manufactured glass-glass elements have been installed as an integrated roof on different stations. Due to the transparent appearance of the solar modules, open, light-flooded, yet protected areas have been created to place the design element of photovoltaic into center stage. The ideas „renewable energy“ and „climate protection“ have been integrated and communicated into the world of gas stations in an intelligent way.
Key technical data
Photovoltaic roofing elements |
700 m² SUNOVATION eFORM Crystal – 258 pcs. |
Nominal electrical power |
62 kWp |
Calculated annual energy yield |
45.000 kWh/year |
Construction
A customary roofing system made of aluminum profiles, in which the photovoltaic glass elements are embedded, has been installed on the steel construction. The installation does not differ from the conventional installation of flat glass elements. The electrical wiring/cabling is located in the fold of the aluminum profiles. The entire installation was carried out by Rudolstädter Systembau, a metal construction company with great experience in the field of gas stations. The planning of the electrical wiring of the PV glass elements was carried out by SUNOVATION.
Black design facade
Elegant appearance with added value
Homogenous and straight
The building developer of this special object had a precious, homogenous looking glass facade with the special something in his mind. The focus of the conceptual planning was the uniform black appearance of the facade that serves to accentuate the clear lines of the building.
Glass-glass modules instead of thin-film
Initially planned with thin-film modules, this facade was realized with glass-glass modules. These do not only offer the requested homogenous dark surface, but due to the crystalline solar cells also generate a higher yield. On top of that came the adaptability of the facade elements to the special requirements of the specific architecture of the building. For this project a total of 330 photovoltaic and décor facade elements with approx. 20 different dimensions were individually produced and installed.
Key technical data
Electricity generating curtain facade |
210 m² |
Photovoltaic facade elements |
SUNOVATION eFORM Color anthracite – 195 pcs. |
Décor facade elements |
SUNOVATION FORM Color anthracite – 135 pcs. |
Nominal electrical power |
16 kWp |
Calculated annual energy yield |
8.600 kWh/year |
Facade construction
The substructure for this back-ventilated curtain facade has been anchored in the concrete walls with retaining brackets and combined with a structural glazing design. The facade elements have been attached to the retaining profiles with 2-component-silicone and were individually mounted on 4 points in so-called bolt slides.
Multi-functional facade of an office building
Insulating glazing with additional benefit
Straight and rich in contrast
The building developer of this project is a specialist for building envelopes and planned a solution which meets his ideas for the design. The goal was to design an insulating glazing with integrated photovoltaic, which adequately picks up the straight, design-oriented style of the metal facade.
Building envelope with additional value
The special character of this insulating glazing with integrated photovoltaic reveals itself to the viewer particularly in the inside of the building. There the visible solar cells are responsible for the specific shadow play and hint at the idea of subject sustainability. By means of the partial shading an overheating of the interior space is avoided. The 2-fold insulating glass ensures the necessary thermal insulation, while the monocrystalline high-performance cells create electrical power.
Key technical data
Photovoltaic facade elements |
SUNOVATION eFORM Crystal ISO - approx. 2500 x 1500 mm
2-fold insulating glass Ug = 1.2 W/m²K
Level of transparency: 40 % ;PV laying 60%
Structure: 10 mm photovoltaic glass module, 14 mm SZR-Argon, 6 mm float glass
|
Construction
The multifunctional glass elements were installed in a customary post-and-beam facade system, which in addition includes the electric cabling of the elements.
Industry facade of a different kind
Glass-glass modules with integrated LED lighting
Modern industrial building
The simple industrial facade was supposed to innovatively represent sustainability. A unique solution was developed to add value to the industrial building in a modest but effective way.
Spectacular distant effect
During the day this glass facade is impressive due to its photovoltaic cells. However, the integrated LED lighting is the highlight of the construction. At night the facade is illuminated with bright light and thus impresses with a spectacular distant effect.
Key technical data
Photovoltaic facade elements |
170 m² SUNOVATION eFORM Crystal with satined glass – 112 pcs.
Photovoltaic cell: monocrystalline, 5 inch
equipped with RGB-LED-tape, 307 lm
|
Construction
The fixing of the industrial facade stands out because of its simplicity. The glass elements were attached to the curtain construction made of aluminum profiles with point clamps. The LED lighting was installed on the profiles on the bottom side.
LEED platinum certified gas station
Gas station with integrated photovoltaics
LEED platinum certified gas-station
The official gas station of EXPO 2020 in Dubai is the first LEED Platinum certified gas station in the world. It is equipped with custom-made glass-glass modules from SUNOVATION. 210 SUNOVATION eFORM clear modules are designed in rectangular and polygonal glass shapes for perfect integration.
Unique Design
Inspired by the UAE National tree, the carbon-fibre canopy is shaped like a ghaf tree. The architecturally distinctive construction is complemented by an energy-generating e-tree. Located on the Dubai EXPO2020 site, the structure embodies the themes sustainability, technology and renewable energy in a contemporary context.
Key technical data
BIPV roofing |
476 m² |
Glass-glass-modules |
SUNOVATION eFORM clear - 210 pcs. |
|
3 different geometries & sizes |
Electrical power |
74 kWp nom. |
Construction
The ghaf tree shaped canopy is made of ETFE Cushion. High performance BIPV modules which ensure an above average energy output, are installed in a composite structure with integrated LED lighting.