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670W BC PV Panel Ultra-High Power TOPCon BC Bifacial Double Glass Solar Module

  • Enter the mega-watt era with the UE670B-66HBD, our flagship ultra-high power solar module. - 
  • Engineered with cutting-edge 182*210mm TOPCon Back Contact (BC) cells and a 132 half-cell (66×2) architecture, it pushes maximum power to an astonishing 670W with a 24.8% module efficiency.  - 
  • Combined with an industry-leading 75±5% bifaciality ratio, this giant module is purpose-built for utility-scale mega-projects, delivering unparalleled Balance of System (BOS) savings, optimized logistics, and the lowest possible Levelized Cost of Energy (LCOE). - 

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📖 Product Details

The 132 Half-Cell Giant for Utility-Scale Dominance
The UE670B-66HBD BC PV Panel is the ultimate tool for EPCs and developers looking to maximize ROI on massive tracts of land. By utilizing 132 (66×2) large-format 182*210mm cells, we have expanded the module dimension to 2382×1134×30mm, unlocking a colossal 670W output. Fewer modules mean faster installation, less racking, and dramatically reduced labor costs on site.

Unprecedented 75% Bifacial Gain
Featuring an upgraded dual-glass structure with a 75±5% bifaciality ratio, this module outperforms standard bifacial panels. When mounted on trackers or elevated structures over highly reflective surfaces (albedo), the rear side captures more scattered light, pushing the effective power output up to 732W (BNPI).

Built for Extreme Environments
Constructed with dual 2.0mm semi-tempered glass, IP68-rated junction boxes, and a robust anodized aluminum frame, this module is highly resistant to PID, salt mist, and ammonia. The double-glass design inherently prevents micro-cracks during transportation and installation, ensuring a 30-year operational lifespan in the world's harshest climates.

💡 Core Selling Points

  • 👑 Absolute Flagship Power: A staggering 670W maximum output drastically reduces the number of modules, combiner boxes, and DC cabling required per MW.
  • 💎 Top-Tier 24.8% Efficiency: Harness the power of 182*210mm large-format BC cells for maximum energy density in vast utility-scale arrays.
  • ☀️ Unmatched 75% Bifaciality: An upgraded 75±5% bifacial ratio means significantly higher rear-side power generation (up to 732W under BNPI conditions), maximizing yield on reflective grounds like sand, snow, or tracker systems.
  • 🌗 Superior Shading Tolerance: The advanced Back Contact (BC) technology eliminates front gridlines, ensuring exceptional performance even in harsh, partially shaded environments.
  • 🛡️ Robust Mega-Structure: Built with dual 2.0mm semi-tempered glass and an anodized aluminum frame (32.5kg), passing 25mm hailstone tests at 23m/s and bearing heavy static loads (Front 5400Pa / Back 2400Pa).
  • 🚢 Optimized Mega-Logistics: High-density packaging allows 720 pcs per 40' HC container, significantly slashing ocean freight costs per watt compared to conventional panels.
  • ⏳ 30-Year Bankability: Backed by a 15-year materials warranty and a 30-year power warranty (First year 99.00%, ≤0.38% annual degradation).

📊 Technical Specifications

1. Electrical Parameters (STC* & BNPI*)

STC: Irradiance 1000W/m², Cell temperature 25℃, AM1.5. Power tolerance: ±3%
BNPI: Front 1000W/m², Rear 135W/m², Ambient 25℃, AM1.5

Parameter650W655W660W665W670W
Pmax (STC / BNPI)650W / 710W655W / 716W660W / 721W665W / 727W670W / 732W
Module Efficiency24.10%24.20%24.40%24.60%24.80%
Voc (STC / BNPI)49.40V / 49.52V49.55V / 49.68V49.70V / 49.83V49.85V / 49.99V50.00V / 50.15V
Isc (STC / BNPI)16.65A / 18.14A16.73A / 18.24A16.80A / 18.31A16.88A / 18.40A16.95A / 18.49A
Vmp (STC / BNPI)41.23V / 41.21V41.32V / 41.32V41.41V / 41.39V41.50V / 41.50V41.59V / 41.57V
Imp (STC / BNPI)15.77A / 17.23A15.86A / 17.33A15.94A / 17.42A16.03A / 17.52A16.11A / 17.62A

2. Electrical Performance under Different Back-side Power Gains

Example based on the 670W module

Power Gain5%10%
Maximum Power (Pmax)704 W737 W
Open Circuit Voltage (Voc)50.00 V50.00 V
Short Circuit Current (Isc)17.80 A18.65 A
Voltage at Max Power (Vmp)41.59 V41.59 V
Current at Max Power (Imp)16.92 A17.72 A

3. Mechanical & Operating Characteristics

ParameterSpecification
Cell Type & SizeTOPCon BC, 182 * 210 mm
No. of Cells132 (66×2)
Dimension2382 × 1134 × 30 mm
Weight32.5 kg ±3%
Front / Back Glass2.0mm high-transparency / 2.0mm semi-tempered glass
FrameAnodized aluminum alloy
Junction Box / DiodeIP68 / 3
Output Cables4mm², (+)300mm, (-)200mm, or Customized
Maximum Static LoadFront 5400Pa / Back 2400Pa
Maximum System Voltage1500V DC (IEC)
Maximum Series Fuse30A
Bifaciality Ratio75±5%
Fire Rating / SafetyClass C (IEC) / Class II
Packaging36 pcs/pallet, 720 pcs/40' HC

4. Temperature Characteristics & Certifications

ParameterSpecification
Operating Module Temperature-40℃ to +70℃
Nominal Operating Temperature (NMOT)43±2℃
Temperature Coefficient of Pmax-0.26%/℃
Temperature Coefficient of Voc-0.22%/℃
Temperature Coefficient of Isc+0.05%/℃
CertificationsIEC 61215, IEC 61730, UL 61730, ISO9001:2015, ISO14001:2015, ISO45001:2018, IEC62941

FAQS

Q :

Why is the 670W module the best choice for utility-scale projects?

A :

The UE670B-66HBD is designed to lower your Levelized Cost of Energy (LCOE) to the absolute minimum. With a massive 670W output and 24.8% efficiency, you need fewer modules per MW. This directly reduces costs for mounting structures, DC cabling, labor, and land usage. Furthermore, the optimized packaging (720 pcs per 40' HC) significantly cuts down on logistics and freight costs.

Q :

What are the installation considerations for a 2.38-meter-long module?

A :

While its 32.5kg weight is manageable for two installers, its length (2382mm) requires standard large-format handling equipment. We strongly recommend using three horizontal mounting rails or high-quality trackers designed for large-format modules to ensure optimal wind and snow load distribution (up to 5400Pa front load).

Q :

How does the upgraded 75% bifaciality ratio benefit my project?

A :

The 75±5% bifaciality ratio means the rear side of the module can generate up to 75% of the power produced by the front side under standard conditions. When installed on trackers or over high-albedo ground (like snow or white gravel), this can result in an additional 5% to 25% power gain, significantly boosting your total energy yield and project IRR.