Application in the system side, the thin film solar cells also have distinct characteristics. Compared with crystalline silicon solar cells, amorphous silicon thin film solar cell applications in BIPV has more advantages. On the appearance of the product, the amorphous silicon thin film batteries to achieve even light, inside and outside as well as the effect of relatively easy to meet the requirements of architectural aesthetics.
To product performance, the amorphous silicon thin film solar cell weak light is good, by the wind, rain, snow and other weather small number of days of annual power generation of about 320 days, at generation time of up to 13 hours; the same time, non- crystalline silicon thin film solar cell temperature coefficient is small, the impact is also affected by temperature changes little.
To system stability, since the amorphous silicon thin film solar cell of the special structure makes the shadow less affected by the power, thus enhancing the adaptability to the environment of the battery, which is the city in tall buildings is particularly important to implement BIPV .
To the diversification of products, the amorphous silicon thin film solar cells also have advantages: first, the solar cell can be processed into a laser dot, Gyrosigma like other to achieve different light effects; followed according to point density, cloth sparsity pattern to adjust the light transmittance; again, amorphous silicon solar cell can adjust the cell color; In addition, the chip can also be made of amorphous silicon photovoltaic cells shutters, adapted by adjusting the angle of incidence in different latitudes of the sun, thereby provide battery conversion rate.
Thin film solar cells in a special type – flexible thin film solar BIPV applications also find their way. Solar energy technology, according to manager Zhai Jin Xu Zuo introduction, usually, crystalline silicon components of the weight per square meter of 13 to 15 kilograms per square meter while the flexible battery pack weighs only 3.4 kg, which for reducing the building’s load requirements are very favorable.
In addition, BIPV applications, the most need is not a building “trouble” in the PV cells. Zuo Xu Zhai said flexible thin film battery in addition to light weight, flexible features, the biggest advantage is a direct bonding in building materials, is very conducive to the building of the water, that other types of batteries are not available .