Gain Solar promoted its lineup of solar tiles for different types of roof installations
The company also showcased its ‘Black Brick’ and ‘Colored Glaze’ series BIPV modules, suitable for replacing diverse building facades
All the displayed BIPV products offer more than 30 years of lifespan, in line with a building’s expected service life
During Intersolar Europe 2025, Gain Solar, a sister company of Yingli Group, primarily focused on developing building-integrated photovoltaic (BIPV) modules, showcased its latest offerings.
According to the company’s press release, the products displayed at the event mimic diverse building construction materials, such as roof tiles, black stones, and colored facades. Inferring from their datasheets, we have briefly described these showcases below.
Product Description
Similar to traditional curved roof tiles, the company developed its T-max Tile_S Series solar tile product. Built with 6 full cells, the company says these solar tiles can each deliver up to 35 W of power with an efficiency of up to 15%. However, the datasheets do not disclose the size or the technology of the cells used. Sized at 586 × 400 mm and laminated with curved 3.2 mm front and rear glass, the tile weighs 5 kg. The company says that its full black appearance and bent shape can integrate with building architecture featuring traditional roof tiles. Its installation method is the same as that of traditional roof tiles.
Gain Solar’s roof tile lineup consists of T-max Tile_A Series, T-max Tile_O Series, and T-max Tile_L Series.
Available in black, red, and gray colors, the ‘A Series’ is equipped with 24 M10 half cells. Users can choose a suitable color for the solar tile to match the building’s architecture; however, their power and efficiency levels vary. According to the datasheet, the black variant offers a maximum power output of 90 W and an efficiency not exceeding 18.9%. The red and gray colored counterpart boasts a power output of up to 75 W and 78 W, with rated efficiencies of 15.8% and 16.4%, respectively. With dimensions of 1,260 × 480 mm, it features 3.2 mm tempered glass on both the front and rear. It uses EVA film on both the front and rear sides of the cell matrix. Weighing 8.5 kg, these solar tiles can support roofs with a buckle design or positioning overlap of consecutive tiles, added the company.
Offering similar color variants to former models, the ‘O Series’ has 2 different sizes – 630 × 480 mm and 1,260 × 480 mm. Featuring 10 M10 half cells, the smaller tile offers a power output of up to 38 W, 31 W, and 32 W, for the black, red, and gray variants, respectively. The corresponding maximum efficiencies are 17.3%, 14.1%, and 14.5%. In contrast, the larger tiles in the same respective colors, equipped with 24 M10 half cells, have a rated power output of up to 90 W, 75 W, and 78 W, and efficiencies of up to 18.9%, 15.8%, and 16.4%. According to the datasheet, the smaller tiles, built with 3.2 mm front and rear tempered glass, weigh 7.5 kg, while the bigger ones weigh 15.5 kg.
The ‘L Series’, sized at 1,340 × 420 mm, consists of 18 M10 half-cells. The rated maximum power output for black, red, and gray colors is 65 W, 56 W, and 58 W, respectively. Respective efficiencies are 17.8%, 15.6%, and 16.1%. The cross-sectional view of the solar tile shows the 3.2 mm tempered front glass + EVA + cell + EVA + backplane + bottom bracket from the air side to the building side. It weighs 6 kg. The company stated that this tile is suited for low-load-bearing capacity roof installations.
Performance vs. Building Materials
According to Gain Solar, all the abovementioned solar tiles offer a lifespan of more than 30 years, matching those of building materials. Waterproofing characteristics are a major requirement for roof tiles. The company claims that the curved S series solar tile is designed for double waterproofing, while the O and L series have a triple waterproof structure. The datasheet, however, does not contain these details for the A series.
In terms of fire resilience, all these solar tiles have a Class A fireproofing grade. In addition, they have a maximum front and back side static load of 5,400 Pa and 2,400 Pa, respectively. During hailstorm events, all these solar tiles can endure 25 mm diameter hailstones at 23 m/s, without failure.
Apart from solar tiles, the company also promoted its ‘Black Brick’ series BIPV product that imitates a marble texture. The company says that it replaces traditional stone for building façades. This product is available in multiple texture patterns, thanks to optical nano-coating technology. However, Gain Solar did not disclose much about this technology. Designed in 2 different sizes – 1,200 × 600 mm and 1,780 × 1,180 mm – it is laminated with a front 6 mm tempered glass and a rear PVB baseplate. According to the datasheet, the smaller model weighs 24 kg, while the larger one weighs 70 kg.
Also on display at the event was the ‘Colored Glaze’ series BIPV module, which has application in traditional building curtain wall or as a façade decoration.