Thermal efficiency of solar glass

What is multi-functional heat insulation solar glass (HISG)?

To promote and respond to the concept of BIPVs, this study developed a type of multi-functional heat insulation solar glass (HISG) that differs from traditional transparent PV modules, providing functions such as heat insulation and self-cleaning in addition to power generation.

How does energy saving glazing work?

Heat always flows towards the cold. Therefore, window glass without a low-e coating will absorb the heat from your home and radiate it onto the colder outside surface, where it is lost. Low-e glass has a special coating which is a poor radiator of heat and does not allow heat to be transferred to the outside.

What is the efficiency of solar cells?

However, the PV efficiency of these cells tends to be lower, with amorphous solar cells at 14.0%, CdTe solar cells at 22.1%, dye-sensitised solar cells at 13.0% and organic solar cells at 18.2% (NREL, 2022). Shukla et al. (2017) reviewed the existing Building Integrated Photovoltaics (BIPV) and STPV technologies in the market.

Which glazing technology has the best thermal insulation?

Among these glazing technologies, the vacuum glazing-based technologies, such as triple vacuum glazing (Manz et al., 2006) and vacuum glazing with low-e coating (Fang et al., 2007) tend to possess the best thermal insulation property (lowest U -value, e.g. less than 1 W/m 2 K).