The Trinasolar 515W Vertex S+ Dual Glass N-type i-TOPCon is a high-power solar panel for commercial and premium residential projects where every square meter of roof must perform at its maximum. Built on the NEG18R.28 platform, it delivers up to 515W with a module efficiency of 23.2%, ideal for achieving more kWp on limited roof areas and reducing BOS cost per watt.
Thanks to its low voltage and high current design (Vmpp 33.9 V, Impp 15.20 A), the panel works excellently with modern 1500 V strings and powerful inverters. The low temperature coefficient of -0.29%/°C, an NOCT of about 43°C and strong performance at low irradiance ensure stable yields throughout the year.
The panel features a dual-glass, monofacial design with 1.6 mm front and rear tempered glass, a 30 mm black anodized frame and 108 N-type i-TOPCon cells. With dimensions of 1961 × 1134 × 30 mm and a weight of 23.5 kg, it stays under 2 meters in length for easy mounting while offering very high power density. Tested loads up to 5,400 Pa snow and 2,400 Pa wind make it suitable for exposed locations.
The dual-glass construction reduces the risk of micro-cracks and damage during installation and contributes to a long service life. Trinasolar backs this up with a 25-year product warranty and 30-year power warranty, with only 1% degradation in the first year and 0.4% per year until year 30 (minimum 87.4% guaranteed power after 30 years).
For installers, this is an excellent choice for C&I roofs, metal roof structures and design-oriented residential installations where maximum yield and low LCOE are key.
Trina = TSM-515NEG18R.28
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