Technical FAQs 4

What is the transmittance of PV glass?

The transmittance of PV glass, which is the ratio of the light transmitted through it to the incident light varies with different PV coverage rates (area proportion of photovoltaic cells) and different materials of PV modules.

How does glass transmittance affect the power generation efficiency?

This will in turn influence the PV module temperature and thus the power generation efficiency . The glass transmittance acts as an important factor affecting both the thermo-optical properties of the STPV unit itself and the overall performance of the combined system (STPV-DSF).

Why is glass transmittance important in STPV-DSF?

The glass transmittance acts as an important factor affecting both the thermo-optical properties of the STPV unit itself and the overall performance of the combined system (STPV-DSF). Chow et al. reported a solar cell transmittance in the range of 45%-55% could achieve the best electricity saving in Hong Kong.

Does glass transmittance affect Ti?

It can be inferred that less heat was transferred to indoor space as the heat extracted by natural ventilation caused lower Ti. While the decrease of glass transmittance showed limited impact on Ti among the three DSF cells. No significant temperature differences were found during night time affected by glass transmittance variations.

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Double glass module light transmittance

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