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HJT Series — Heterojunction High-Bifaciality Modules
3 Models available · Solar PV Modules
Heterojunction (HJT) technology layers amorphous silicon onto a crystalline wafer for the highest bifaciality and a very low temperature coefficient, ideal for floating, desert and high-albedo installations.
Model Number Breakdown
- Highest bifacial factor
- Very low temperature coefficient
- Excellent low-light response
- Long degradation-resistant life
Specifications Range
All specifications and dimensions can be customized upon request
| Key parameters | Model Range |
|---|---|
| Rated Power | 600–700 Wp |
| Efficiency | 22.5–23 % |
| Cell Type | Heterojunction (HJT) |
| Wafer Size | 210mm |
| Max System Voltage | 1500 V |
| Bifaciality | 85 % |
| Warranty | 30 years |
| Standard | IEC 61215, IEC 61730 |
⚙How It Works
Heterojunction (HJT) cells fuse a crystalline silicon wafer with ultra-thin amorphous silicon layers, forming passivated contacts on both faces without the high-temperature steps of PERC or TOPCon. The result is the highest open-circuit voltage and bifaciality in the range, plus an excellent low-temperature-coefficient and low-light response. HJT is the platform of choice where every extra watt-per-square-metre counts.
▦Structure & Composition
The HJT module uses an n-type wafer with intrinsic and doped amorphous-silicon stacks on front and rear, a transparent conductive oxide (TCO) electrode and a symmetric double-glass, double-foil construction. Because both faces are active, the bifacial factor approaches 95 %, and the low-temperature process keeps the wafer strong, reducing micro-crack risk during handling and transport.
Model Range
| Model | Rated Power | Efficiency | Cell Type | Max System Voltage | Standard | Reference Price |
|---|---|---|---|---|---|---|
| QD-600H-132 | 600 Wp | 22.5 % | Heterojunction (HJT) | 1500 V | IEC 61215, IEC 61730 | … |
| QD-650H-132 | 650 Wp | 23.0 % | Heterojunction (HJT) | 1500 V | IEC 61215, IEC 61730 | … |
| QD-700H-132 | 700 Wp | 23.0 % | Heterojunction (HJT) | 1500 V | IEC 61215, IEC 61730 | … |
Applications
Selection Guide
- Premium residential, floating solar, desert and high-albedo sites where maximum energy density is worth the premium.
- Choose HJT when the array is space-constrained and every square metre must produce at its maximum.
- Exploit the near-95 % bifaciality with high, reflective mounting for the best return.
Frequently Asked Questions
What makes HJT cells special?
Amorphous-silicon passivated contacts on both sides give the highest open-circuit voltage, bifaciality and low-light performance, at a higher price point.
Why is HJT good for floating or desert plants?
Its low temperature coefficient and strong low-light response keep yield high in extreme heat and diffuse light, and the double-glass build resists humidity and sand abrasion.
Is HJT worth the premium?
In space-constrained or high-value sites the extra generation per square metre typically recovers the premium within the plant's early years.
Instant Selection & Quote Calculator
Select your specifications to get an estimated price instantly.
| Base price (interpolation) | $48 |
| × Product factor | ×1.0000 |
| × Country factor | ×1.0000 |
| × Copper-linked factor | ×1.0000 |
| + Options / accessories | $0 |
Complete equipment — no winding copper linkage
Reference prices are for estimation only and do not constitute a formal offer.
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