RenewSys is a globally renowned and India’s largest PV Encapsulant and Backsheet manufacturer. With manufacturing capacity of 7 GW of Encapsulants and 4 GW of Backsheets, the company has shipped more than 24 GW of components worldwide to date.
Pioneering Innovations in the PV Components Market
RenewSys has a history of being a trailblazer in PV Encapsulant and Backsheet manufacturing. We are the first to introduce key PV components in the Indian market, including Transparent Backsheet.
RenewSys PRESERV 1 TF Transparent Backsheet
RenewSys’ PRESERV 1 300 TF Transparent Backsheet, manufactured on state-of-the-art European production lines, is one of the most durable Transparent Backsheets in the international PV market.
At RenewSys’ Backsheet manufacturing facility in Bengaluru, each Backsheet roll undergoes automatic inspection at every stage using a high-resolution camera inspection system and is cured in a strictly controlled environment to ensure the highest quality. RenewSys Bengaluru houses India’s first NABL-accredited laboratory, equipped with the latest machines to test everything from raw materials to finished goods, ensuring best-in-class performance.
View technical datasheet of PRESERV 1 300 TF here.
Advantages of Transparent Backsheet in Bifacial PV Modules
Transparent Backsheet is used as an alternative to Glass in Bifacial PV modules and offers with many advantages, such as:
Lightweight
PV modules with Transparent Backsheets are approximately 17% lighter than double-glass or glass-glass modules. This reduced weight offers benefits such as lower transportation costs, reduced risk of breakage during transit, decreased labor expenses, savings in balance of system (BOS) costs, improved efficiency in handling and installation, and a lower environmental impact.
Enhanced impact resistance
Glass-Transparent Backsheet modules use a 3.2 mm-thick tempered glass on the front, delivering superior impact strength and durability in comparison to the 2 mm–2.1 mm thick heat-treated glass typically used in Glass-Glass modules.
Anti-UV properties
The glass used in PV modules generally has a UV transmittance of 40%-50%. Transparent backsheet, on the other hand, has a much lower UV transmittance (<5%). As a result, it blocks a substantial portion of UV radiation, improving the module's long-term reliability and performance.
Ease of cleaning
The outermost layer of the transparent backsheet features a PVF (Polyvinyl Flouride) film, which is stain-resistant. The backsheet also has hydrophobic properties, encouraging water droplets to easily roll off, carrying away dirt and dust in the process. This helps minimize dirt and dust accumulation on the backsheet surface and ensures minimal impact on energy generation.
Lower operating temperature
Unlike glass, the transparent backsheet facilitates heat dissipation from the module's rear, leading to a lower operating temperature. This, in turn, contributes to the higher power generation.
Increased daily yield per watt
Due to their lower operating temperatures, Glass-Transparent Backsheet modules can generate more electricity, particularly on sunny days when they do not heat up as much as Glass-Glass modules during operation.
Saline corrosion resistance
Glass is susceptible to corrosion in alkaline environments, often leading to white spots or a hazy look. In contrast, transparent backsheet material is designed to endure such conditions without degradation or the formation of white spots.
Data & Image credits
RenewSys R&D