Efficiency leader, no clear weak spot
The Yingli LF650M10N-66H/BF series redefines performance standards through the use of N-type TOPCon cells, which minimize energy losses and offer significantly better resistance to the LID phenomenon compared to traditional solutions. A key distinguishing feature of these modules is bifacial technology, enabling efficient light absorption from both sides of the panel, which, combined with the glass-glass construction, drastically increases the total annual energy yield. This solution perfectly meets the needs of investors implementing utility-scale solar farms and demanding commercial projects where maximizing power from the available area is crucial. Thanks to the use of large M10 wafers and an optimized number of busbars, these panels perform excellently in high-temperature conditions, offering more stable operating characteristics than older generation modules. By choosing this model, the user gains higher efficiency in low-light conditions, which is a significant advantage at Polish latitudes. This design effectively addresses the problem of long-term power degradation, ensuring the security and profitability of the investment for decades. It is a proposition for professionals seeking uncompromising durability and the highest power density, which clearly sets this series apart from standard products currently available on the market.
Ranking
Signals from the data
Small roofs that need every watt and roofs where every square metre counts.
Top 2% of the N-type 600-650 W segment, against a median of 22.77%. Ranked 378th in the whole database.
Top 2% of the N-type 600-650 W segment, against a median of 227.7. Ranked 383rd in the whole database.
- 23.9% module efficiency - 1.1pp better than the N-type 600-650W median of 22.8%
- Power density of 238.8 W/m² packs 11.1 W/m² more into the same footprint vs N-type 600-650W median (227.7 W/m²)
- Temperature coefficient of -0.29%/°C matches the N-type 600-650W median
- #378 for efficiency, #2220 for temperature performance out of 14129 panels
Specifications
Datasheet charts
Measured curves published by Yingli in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 645 Wp appear here. The rest cover the whole series.
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 LF650M10N-66H/BF series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.