Middle of its segment, short guarantee
The Becquer BEC-HJT | 690-715 W-HD series is designed for maximum energy yield from the same installation area - where every square meter counts. A key advantage is the HJT (heterojunction) technology, which combines excellent performance at high temperatures with high parameter stability over time. This allows the modules to help minimize actual energy production losses in the summer, which directly translates into the profitability of the investment.
The W-HD variant stands out due to its construction focused on durability and environmental resistance - this is a solution for demanding locations such as large-scale rooftops, industrial installations, and PV farms. Another advantage is the glass-glass construction, which improves resistance to environmental factors and supports the long-term stability of the module.
The series is suitable for investors who expect high surface efficiency and predictable performance over many years, as well as for projects where greater tolerance to heat and high reliability during the installation's lifespan are important.
Ranking
Signals from the data
Commercial, utility-scale and hot-climate.
Owners who want a long output guarantee.
Bottom 7% of the HJT 650-700 W segment, against a median of 30 yrs. Ranked 9,798th in the whole database.
HJT technology delivers a temperature coefficient of approximately -0.26%/°C, compared to -0.31%/°C for TOPCon and -0.35%/°C for PERC. In practice, on a rooftop heated to 70°C, this translates to roughly 1–2% higher energy yield during summer months versus TOPCon modules of identical rated power.
The series achieves up to 23.0% module efficiency, placing it on par with direct peer comparables such as the DAS Solar DAS-DH132NC (23.0%) and the BECSA BEC-HJT (23.0%). The 715 Wp variant reduces the module count per MW, lowering BoS (Balance of System) costs in utility-scale installations.
Glass-glass HJT achieves bifaciality of up to approximately 95%, while glass-glass TOPCon modules typically reach 80–90%. In installations with high-albedo ground surfaces (white TPO membrane, gravel, snow), this results in measurably higher rear-side energy yield compared to TOPCon-based competitors.
The W-HD dual-glass variant improves resistance to moisture ingress, mechanical loading from snow and hail, and minimizes delamination risk — particularly critical in commercial rooftop installations and utility-scale PV farms operating for 25+ years under harsh environmental conditions.
The manufacturer provides a 25-year warranty covering both the product and linear power degradation — a standard consistent with best-in-class offerings in the utility-scale segment. The long-term performance stability of HJT stems from the absence of LID (Light Induced Degradation) inherent to P-type cells.
Becquer does not appear on BNEF's bankable manufacturers list (Q1 2026). In projects financed by banks or infrastructure funds, the absence of this status may complicate debt financing or require additional credit enhancements; some insurers also exclude non-Tier-1 manufacturers from performance insurance policies.
HJT accounted for approximately 8% of global module production in 2025, versus ~65% for TOPCon. The smaller base of certified installers and service technicians experienced with this technology may extend warranty response times and increase the cost of service interventions, particularly in markets outside the main deployment regions.
- At 22.2% efficiency, this panel is on par with typical HJT 650-700W modules
- Power density of 222.1 W/m² matches the HJT 650-700W median
- At -0.25%/°C, hot weather performance is typical for HJT 650-700W panels
- At 37.5 kg, weight matches the HJT 650-700W median
- 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces
Specifications
Datasheet charts
Measured curves published by Becquer in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 690 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.
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