Space saver, no clear weak spot
The Vertex N TSM-NEG19RC.20 is built around n-type cells and Trina Solar's patented i-TOPCon technology, pairing high unit power with low long-term degradation. The series relies on n-type TOPCon cells and a bifacial design, allowing the panel to capture extra energy from light reflected onto its rear side, which meaningfully boosts the energy yield of an installation, especially on bright roof surfaces or ground-mount systems. The 210 mm cell platform combined with a half-cut cell layout reduces resistive losses and improves resilience to partial shading. A key advantage is the low-voltage design, which enables longer strings without exceeding inverter voltage limits, cutting down the number of required installation components and lowering BoS costs. This translates directly into a reduced LCOE for the overall investment. The panel suits both large-scale solar farms and commercial projects where maximizing power output per available surface area matters, along with a predictable, long-term power warranty. It's a solid choice for investors seeking high performance while keeping operating costs low over many years of system operation.
Ranking
Signals from the data
Utility-scale, commercial and shaded-installations.
Top 16% of the TOPCon 600-650 W segment, against a median of 227.7.
Top 17% of the TOPCon 600-650 W segment, against a median of 22.80%.
- At 23.3% efficiency, this panel is on par with typical TOPCon 600-650W modules
- 233.2 W/m² power density - 5.5 W/m² more than TOPCon 600-650W median (227.7 W/m²), more power per roof area
- Temperature coefficient of -0.29%/°C matches the TOPCon 600-650W median
- Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface
- Ranked #1057 out of 14129 panels for efficiency in the database
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
Found 1144 panels of the same or similar size to this one, within ±10 mm. See them here Found 1150 panels of the same or similar size to this one, within ±25 mm. See them here Found 1261 panels of the same or similar size to this one, within ±50 mm. See them here Found 1942 panels of the same or similar size to this one, within ±100 mm. See them here
About the Vertex N TSM-NEG19RC.20 series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.