BIPV – Building-Integrated Photovoltaics

BIPV are solar panels designed to replace conventional building materials in parts such as the roof, skylights, facades and windows.

The key difference between this technology and traditional solar PV is that panels are built into the building rather than being tacked-on. This means there’s more of a relationship between aesthetics and functionality.

Specification Of See-through BIPV Solar Module

Semi Transparent
BIPV Solar Module

Large-Size Semi-Transparent Module ASP-LAM 3
	ASP-LAM 3-T40-164	ASP-LAM 3-T20-218
Nominal (Pm)	164W	218W
Open Circuit Voltage (Voc)	122.5V	122.5V
Short Circuit (Isc)	1.89A	2.52A
Voltage at Max. Power (Vm)	98.0V	98.0V
Current at Max. Power (Im)	1.68A	2.23A
Transparency	40%	20%
Module Dimension	L1200W1800D18mm
Weight	40.3kg/m2
Power Temperature Coefficient	-0.214%/oC
Voltage Temperature Coefficient	-0.321%/oC
Current Temperature Coefficient	0.060%/oC
Power Output	25 years power output guarentee for 90% of nominal output during first 10 years and 80% over 25 years
Material and Workmanship	10 years
Test Conditions	STC: 1000W/m2,AM1.5,25oC

Comparison Of Crystaline Silicon VS Cadmium Telluride

Cadmium telluride thin film modules more suitable for BIPV compared to crystalline silicon modules.
Have controllable transmittance technology, cell substrates with relatively low cost
Background colors, sizes and battery modules can be customized, considering of the architectural functions and aesthetics effects

The appearance of CdTe semi-transparent module is beautiful and atmospheric. Does not influence the exernal viewing.

The crystalline silicon double-glass module has a serious blocking effect on light and location, which easily causes visual fatigue.

Reference

The skyline with CdTe BIPV modles on the lobby of Lenovo headquater Beijing.

CdTe Photovoltaic Lighting Roof of Tianjin Nursing Home

Demo BIPV project at Binjiang Shuangchuang Base of State Grid