GBP Launches Ultra-Lightweight 355W Solar Panel for Low-Load Roofs
- 2026/03/13
- News
GBP has announced the launch of its latest innovation in solar technology: the GBP355T-88N, an ultra-lightweight solar panel engineered specifically for structures with weight restrictions.
Unlocking solar potential for older buildings previously deemed unsuitable
Weighing just 9.3 kg (approximately 5.6kg/m²), the new panel is roughly half the weight of standard modules. This dramatic reduction in mass allows for installation on low-load roofs—such as those found on factories, warehouses, and older buildings—that previously could not support conventional solar systems without expensive structural upgrades. Despite its slim profile, the panel boasts an impressive 21.3% conversion efficiency, thanks to its advanced N-type TOPCon half-cell technology. This ensures that even with a lighter footprint, energy output remains high.
Engineered for durability and cost savings
The GBP355T-88N features reinforced 1.6mm tempered glass, providing the rigidity needed to withstand environmental stress and prevent warping over time. By eliminating the need for roof reinforcement in most cases, the panel significantly reduces both upfront costs and project timelines.
This solution is designed to address key challenges in global markets:
・Weak roof structures in older European and U.S. buildings: The ultra-lightweight design (9.3 kg, about half the weight of a standard panel) eliminates the need for costly structural reinforcement.
・Limited roof space: 21.3% high-efficiency TOPCon technology maximizes energy output, ideal for commercial and industrial rooftops.
・High upfront costs and long project timelines: No reinforcement required, enabling faster deployment and lower initial investment, perfect for retrofits and rapid-install projects.

Key Specifications
■ Model: GBP355T-88N
■ Dimensions: 2138 x 780 x 5 mm
■ Weight: 9.3 kg
■ Max Output: 355W
■ Efficiency: 21.3%
■ Cover Glass: 1.6mm tempered glass
■ Cell Type: N-type TOPCon half-cell
■ Certifications: IEC61730, IEC61215
■ Warranty: 10-year product warranty, 20-year performance guarantee
This solution is ideal for commercial buildings with metal roofs, historical structures with load concerns, and projects requiring rapid, non-invasive installation. To learn more about how the GBP355T-88N can be tailored to meet the specific load requirements and project goals of your infrastructure, we invite you to contact our team for a detailed consultation.
