FAQ's on BIPV

Building Integrated Photovoltaics (BIPV) refers to the integration of solar modules into the building envelope, such as roofs, facades or railings. In contrast to conventional PV systems, BIPV modules replace building materials and fulfill a dual function: electricity generation and structural protection. In this way, BIPV improves not only the energy efficiency but also the aesthetics and sustainability of buildings.

BIPV offers several advantages:

• Aesthetics: By integrating into the building envelope, BIPV blends harmoniously into the architectural design.
• Space saving: Since BIPV modules replace conventional building materials, additional space on the roof or facade is saved.
• Dual function: BIPV modules provide both weather protection and energy generation.
• Sustainability: BIPV helps to reduce a building's environmental footprint by utilizing renewable energy.

There are various types of building-integrated photovoltaic (BIPV) modules, including:

• Roof tiles & modules: Replace conventional roof tiles or are integrated directly into the roof.
• Facade modules: Solar modules that are installed as cladding or in glass facades.
• Window modules: Partially transparent PV glasses that serve as windows or skylights.
• Sun protection systems: PV lamellae, blinds or canopies that generate electricity and provide shade.
• Special solutions: customized PV elements, e.g. for balconies, noise barriers or pergolas.

BIPV modules combine aesthetics with functionality and enable the efficient use of building surfaces for energy generation.

The installation of BIPV modules requires careful planning and collaboration between architects, civil engineers and PV specialists. Since BIPV modules are an integral part of the building envelope, they must meet both the aesthetic and functional requirements of the building. This includes taking into account the building's waterproofing, thermal insulation and structural integrity.

The orientation and inclination of BIPV modules have a significant influence on their energy generation. Modules that face south and have an optimal inclination (about 30-35 degrees in Central Europe) achieve the highest energy yield. Facade modules, on the other hand, usually have a lower inclination, but can also be efficient through vertical integration in buildings with high solar radiation.

3S Swiss Solar Solutions Ltd offers a wide range of BIPV products, including:

• 3S Solar Roof: A modular solar roof system that replaces conventional roof tiles and allows for seamless integration of PV modules.
• 3S Solar Facades: Aesthetic solar facade solutions that are available in different colors and designs, both generating energy and enhancing the building.
• 3S Solar Balustrade: An innovative solution for balconies in which the balustrade serves as a solar module. It combines safety and aesthetic design with the function of generating solar power. The modules are active on both sides and can generate additional energy through reflections from facades.
• Customized solutions: Tailor-made BIPV solutions that are specifically adapted to the needs and design of the respective construction project.

The energy efficiency of BIPV modules depends on various factors, including the type of PV material used (e.g. monocrystalline, polycrystalline, thin-film), the orientation and inclination of the modules, and local climatic conditions. Modern BIPV modules offer comparable efficiency values to conventional PV modules. For example, the modules from 3S Swiss Solar Solutions AG offer high efficiency and are designed to meet the specific requirements of BIPV projects.

The initial costs for BIPV modules can be higher than for conventional building materials. However, the long-term advantages should be taken into account, such as energy savings, lower electricity costs and possible subsidies. Furthermore, BIPV modules replace other building materials, which can relativize the overall costs of the construction project. 3S Swiss Solar Solutions AG products offer a good price-performance ratio and high quality.

Many countries have programs and subsidies in place to promote the use of renewable energies, including BIPV. These may include grants, tax incentives or feed-in tariffs. It is advisable to contact local authorities or energy agencies for information on specific funding opportunities.

BIPV modules are designed to have a long service life, comparable to conventional PV modules. They usually offer a lifespan of 25 years or more. Products from 3S Swiss Solar Solutions AG are characterized by their robustness and durability and are specially designed for long-term use in the building envelope.

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The maintenance of BIPV modules is relatively low. However, it is important to carry out regular inspections to ensure that the modules are clean and free from damage. Cleaning can usually be done by rain, but in areas with little rainfall or high pollution, manual cleaning may be necessary. Maintenance contracts with specialized companies can help ensure optimal module performance.

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Yes, BIPV modules can be integrated into both new and existing buildings. However, when retrofitting an existing building, careful planning is required to ensure that the modules fit into the existing structure both aesthetically and functionally. Products such as the 3S solar system from 3S Swiss Solar Solutions AG offer flexible solutions that are suitable for both new buildings and renovations.

When planning a BIPV project, the following points should be considered:

• Architectural integration: the modules must aesthetically match the design of the building.
• Technical specifications: selection of the right modules based on efficiency, performance and local climatic conditions.
• Regulatory requirements: compliance with local building codes and standards.
• Economic viability: cost-benefit analysis and consideration of funding opportunities.
• Collaboration: Close collaboration between architects, construction engineers and PV specialists to ensure optimal integration.

Yes, the integration of BIPV in facades brings specific challenges, such as:

• Ventilation: Ensuring sufficient ventilation behind the facade to avoid overheating.
• Protection against the weather: Ensuring the building is sealed and protected against water infiltration.
• Load-bearing capacity: Taking into account the additional load of the PV modules and adapting the building structure.
• Aesthetics: harmonious integration of the modules into the architectural design of the facade. 3S Swiss Solar Solutions AG products, such as 3S solar facades, have been specially developed to meet these challenges and ensure optimal integration.

Choosing the right specialist partner is crucial for the success of your BIPV project. Our specialist partner network offers you everything from a single source – from the initial consultation, feasibility study and area optimization to professional implementation. Use our specialist partner map to search for a specialist partner in your region and find the right expert for your project. Visit our specialist partner map and start your BIPV project with the best specialists at your side!

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Yes, BIPV modules are largely made of glass, aluminum and silicon, which are recyclable materials. Specialized recycling programs for end-of-life PV modules are available. For more information, please click here: Recycling of BIPV modules.