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Model CWT555-108TNB12 | N-Type TOPCon | 108 Half-Cell Monocrystalline | Bifacial | 1500V System Voltage
The CW Enerji CWT555-108TNB12 solar panel delivers 555 watts of high-efficiency power in a compact bifacial design. This N-type TOPCon monocrystalline module is engineered for demanding residential, commercial, and industrial projects that require strong performance and long-term reliability. With module efficiency up to 21.68 percent, it helps maximize energy yield from limited roof or ground space. The bifacial construction allows energy generation from both the front and rear sides, enhancing output where reflective surfaces are available. A robust double-glass structure and IP68 junction box support long field life, even in harsh environments with dust, salt, or ammonia exposure. Backed by long product and performance warranties, this panel is designed to deliver stable returns over decades of operation.
High power density for limited space: The 555 Wp output and up to 21.68 percent efficiency allow more energy from each square meter, reducing the number of modules required on constrained roofs or ground arrays.
Bifacial generation for higher yields: Bifacial N-type TOPCon cells can harvest light from the rear side, increasing energy production on reflective surfaces such as light gravel, concrete, or white membrane roofs.
Reliable performance in low light: Outstanding low irradiation performance helps maintain strong output during cloudy mornings, evenings, and hazy conditions, supporting more stable daily energy generation.
Durable construction for harsh climates: The module withstands wind loads up to 2400 Pa and snow loads up to 5400 Pa, while double glass and robust framing support long service life in challenging weather zones.
Long-term value with slow degradation: A low annual degradation rate of around 0.42 percent helps maintain 93.4 percent performance at year twelve and 87.4 percent at year thirty, protecting long-term energy yields.
Positive power tolerance for dependable output: A power tolerance of 0 to +5 W ensures that every shipped module meets or exceeds its rated power, supporting accurate system design and performance expectations.
This CW Enerji CWT555-108TNB12 solar panel converts sunlight into usable DC electricity using advanced N-type TOPCon monocrystalline cells. When the front and rear surfaces are exposed to light, photons strike the silicon cells and release electrons, generating electrical current that flows through the module’s busbars. The resulting DC power is routed through the IP68 junction box and cables to an inverter, where it is converted into AC electricity suitable for homes, businesses, or commercial facilities. The bifacial design allows both faces of the panel to participate in energy generation, improving total yield in well-designed systems. Temperature-optimized cell technology and a low temperature coefficient help maintain performance as the module heats up in real-world operation. Over time, a carefully engineered degradation profile and robust encapsulation support consistent output across the full warranty period.
N-Type TOPCon cell technology: N-type TOPCon cells use high-purity silicon and a passivated contact structure to reduce recombination losses and improve efficiency. This design supports strong performance at high irradiance and helps maintain efficiency at elevated temperatures, contributing to greater annual energy production.
Bifacial double-glass construction: The panel uses a bifacial double-glass structure that exposes both the front and rear cell surfaces to incoming light. Direct sunlight is captured on the front side, while reflected and diffuse light from the ground or roof surface is harvested by the rear side, increasing overall system yield when installation conditions are suitable.
Power delivery and system integration: Generated DC electricity flows through 18-busbar cell interconnections to the junction box, which offers IP68 protection for secure outdoor operation. From there, wiring connects the module strings to a compatible string or central inverter, where DC power is converted to AC for on-site consumption or export to the grid as defined by the system design.
| Module Type | Monocrystalline N-Type TOPCon Bifacial Double-Glass Panel |
| Model Number | CWT555-108TNB12 |
| Peak Power (Pmax) | 555 Wp |
| Power Range (Series) | 555 Wp to 575 Wp depending on model variant |
| Module Efficiency Range | 21.68% to 22.46% across the 108TNB12 series |
| Voltage at Maximum Power (Vmpp) | 32.4 V |
| Current at Maximum Power (Impp) | 17.13 A |
| Open Circuit Voltage (Voc) | 37.6 V |
| Short Circuit Current (Isc) | 18.22 A |
| Power Tolerance | 0 ~ +5 W |
| Maximum System Voltage | 1500 V DC |
| Maximum Series Fuse Rating | 35 A |
| Operating Temperature Range | -40°C to +85°C |
| Temperature Coefficient of Pmax | -0.32% / °C |
| Temperature Coefficient of Voc | -0.26% / °C |
| Temperature Coefficient of Isc | +0.04% / °C |
| Cell Type and Size | N-Type TOPCon monocrystalline, 210 × 105 mm |
| Number of Cells | 108 cells (6 × 18 layout) |
| Panel Dimensions (H × W × D) | 1965 × 1303 × 35 mm |
| Weight | 28.5 kg |
| Front Glass and Coating | Anti-reflection, self-cleaning coated glass for reduced soiling |
| Junction Box Protection Class | IP68 rated junction box |
| Max Wind / Snow Load | 2400 Pa wind load, 5400 Pa snow load |
| Rear-Side Power Gain Potential | Up to 25% extra power depending on installation conditions |
| Seller / Manufacturer | CW Enerji Mühendislik Ticaret ve Sanayi A.Ş, Turkey |
Certifications: IEC 61215, IEC 61730-1, IEC 61730-2, IEC 62804 (PID), IEC 61701 (Salt Mist), IEC 62716 (Ammonia), ISO 9001:2015, ISO 14001:2015, ISO 45001:2018.
Inverter Compatibility: Designed for use with modern grid-tied and hybrid inverters that accept 1500 V DC strings and high-current N-type modules. Always confirm exact string sizing and voltage limits with the selected inverter datasheet before installation.
Environmental: Double-glass construction and corrosion-resistant materials support reliable performance in coastal, agricultural, industrial, and high-humidity locations when installed according to manufacturer guidelines.
Warranty: 12-year product warranty and linear performance warranty with 93.4% output at year 12 and 87.4% output at year 30, based on a total annual degradation rate of approximately 0.42 percent.
● Available | Contact us for lead time and pricing
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