Light for its output, no clear weak spot
The JT SLk(B) 715-755W series comprises advanced bifacial modules built on HJT technology combined with n-type cells, engineered to maximize energy yield in large-scale commercial and industrial installations. The design, based on 132 monocrystalline half-cut cells and multi-busbar interconnection, reduces resistive losses and improves current uniformity, resulting in stable performance even under partial shading. Thanks to bifacial energy generation, the panels capture additional power from reflected irradiance reaching the rear side of the module, making them especially attractive for ground-mount solar farms on high-albedo surfaces and elevated racking systems. The use of glass on both sides increases mechanical durability and extends module lifespan while limiting LID and PID degradation. A very low power temperature coefficient allows the series to maintain high efficiency even on hot days, when conventional panels lose output. This solution is aimed at investors and developers of utility-scale projects who expect low LCOE, predictable power degradation over a 30-year span, and structural resistance to high snow and wind loads. The JT SLk(B) series thus combines performance, durability, and mounting flexibility in a single product.
Ranking
Signals from the data
Utility-scale and hot-climate.
Top 6% of the HJT 700-750 W segment, against a median of 53.6. Ranked 4,268th in the whole database.
The Pmax temperature coefficient is -0.24%/°C, better than the typical -0.34% to -0.38%/°C seen in PERC cells. This translates into lower power losses on hot days and higher annual energy yield in high-irradiance climates.
The manufacturer specifies a bifaciality factor of 90%, a competitive result versus peers such as AOX-132G12HC (24.2% efficiency), enabling extra rear-side energy gain in ground-mounted installations on high-albedo surfaces.
A 30-year power warranty and 15-year product warranty match the premium standard for the HJT segment, giving investors predictable long-term power degradation and lower LCOE risk.
Dual-glass design combined with 132 monocrystalline half-cut cells reduces LID and PID degradation and improves mechanical strength, important for high snow and wind load conditions in utility-scale installations.
The 23-24.3% efficiency range sits in the upper half of comparable models (Gamko 24.14%, SunEvo 24.1%, Ocean Solar 24.2%), confirming the series' position as a high-end product in the 715-755W segment.
The JT SLk(B) 715-755W series, launched in 2022, has been discontinued. This means limited availability of replacement modules for future project stages and potential servicing challenges within the 15-year product warranty period.
- Efficiency of 23.0% matches the HJT 700-750W median
- At 230.2 W/m² power density, roof space requirements are typical for HJT 700-750W panels
- At -0.24%/°C, hot weather performance is typical for HJT 700-750W panels
- 36.4 kg weight - 1.9 kg lighter than HJT 700-750W median (38.3 kg), reducing installation effort
- Bifacial design (90% factor) captures reflected light - adds 4-14% yield on ground-mount or white roof
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.
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