Channel: Photovoltaic glass
Trosifol: reliable protection for solar cells

2010-09-01 | Photovoltaic glass

Façade-integrated photovoltaics or “Buildingintegrated photovoltaics” (BIPV) making use of thinfilm technology facilitate the efficient use of the building envelope, enabling it to generate electricity. However, very few solar modules can make do without reliable and lasting protection from external influences, particularly when attached to façades. Polyvinyl butyral (PVB), a film that has been better known until now for its use in laminated safety glass, is now attracting attention.

Trosifol: reliable protection for solar cells
PVB FILMS FOR SOLAR MODULES
The market segment for solar modules integrated in façades or used as solar glass roof elements is steadily growing. Its market share is currently less than one per cent of module installations, as many systems are still very costly and building connection technology is still underdeveloped and not sufficiently standardized. P On PV modules, the solar cells have to be protected from external influences.
Encapsulation consisting of transparent plastics is making a huge contribution here to the durability of photovoltaic modules and to long-term power generation from sunlight. This applies particularly to building façades. With BIPV (Building-integrated photovoltaics) systems, it is not only possible to generate electricity and reduce CO2, but also to (at least partly) refinance the façade by feeding the electricity into the grid.
These building-integrated PV systems are becoming increasingly attractive and efficient.They represent a good combination of efficient surface use and aesthetics. A big help here has been the further development of PV modules making use of thinfilm technology. Of great importance here is polyvinyl butyral (PVB), a film that has so far been better known for its use in laminated safety glass. A fine example is the New York Stillwell Avenue subway station, which has the world’s largest integrated PV installation with thin-film modules, equipped with Trosifol PVB films. The first manufacturer worldwide to develop a special PVB ...


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Article taken from Glass-Technology International bi-monthly magazine (6 issues per year)
Year: 2010 number: 5
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