Bifacial double-glass module gain

Does a glass/glass bifacial module have more optical gain?

Incorporating both, the IR reflective coating and the white reflective coating-3, into the half-cut cell module with 3mm cell-gap and 5mm string-gap, the optimized glass/glass bifacial module has about 4% more optical gain, as compared to a standard glass/glass bifacial module without any coating (Fig. 14). Fig. 12.

Do bifacial modules increase energy yield?

Overall, the bifacial gain ranges from 5 % to 23 % across all the modelled cases and rooftop reflectivity. This highlights the considerable potential for energy yield enhancement offered by bifacial modules. The mounting components cause a reduction in the bifacial gain potential ranging from 1 to 2 %.

Do bifacial PV systems reduce bifacial gain?

For a bifacial PV system with mounting components and 75 % reflective rooftop, a reduction in the bifacial gain of 0.9 % and 0.8 % for modules with individual optimization and modules configured in two parallel strings is observed, respectively.

Do mounting components affect bifacial gain?

The mounting components cause a reduction in the bifacial gain potential ranging from 1 to 2 %. This suggests that the mounting components result in shading on the back of the module, potentially causing a mismatch in current within a single module.

How much bifacial gain can a monofacial module achieve?

Under ideal conditions, bifacial modules can achieve a 25% bifacial gain over conventional modules. The avoided annual CO 2 emission relative to installation capacity varies between 0.58 to 0.64 Mg/kWp for monofacial and 0.68 to 0.74 Mg/kWp for bifacial.

How is bifacial energy gain determined?

The energy gain of a bifacial module over a monofacial module is determined by elevation above the mounting surface, albedo, solar path, nonuniformity of back irradiance, diffuse fraction, and tilt angle.