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Model CWT620-156TN10 | N-Type TOPCon | 156 Half-Cell Monocrystalline | Monofacial | 1500V System Voltage
The CW Enerji CWT620-156TN10 solar panel combines advanced N-type TOPCon technology with a high 620 Wp output for utility, commercial, and large rooftop projects. This high efficiency monocrystalline module delivers up to 22.18% panel efficiency, helping designers achieve more power from limited roof or ground space. It is part of CW Enerji’s 156TN10 series, which ranges from 615 to 635 Wp, offering consistent performance across the portfolio. The module is engineered for long term reliability with optimized degradation rates and strong mechanical strength. A 1500 V system rating allows efficient string design in large scale installations. With robust construction, high conversion efficiency, and durable self cleaning glass, the CWT620-156TN10 provides a bankable option for modern high power solar arrays.
High power density for space constrained projects: With a maximum power of 620 Wp and 22.18% efficiency, this panel delivers substantial output from a compact 2465x1134 mm footprint. System designers can reduce the number of modules required per array while keeping energy yield high.
Advanced N-type TOPCon cell technology: The module uses N-type TOPCon monocrystalline cells with 16 busbars, designed to reduce recombination losses and improve energy production. This modern cell structure supports better performance and more stable output over the module lifetime.
Excellent durability in harsh conditions: Wind loads up to 2400 Pa and snow loads up to 5400 Pa can be handled by the reinforced frame and glass. The IP68 junction box and certified resistance to PID, salt mist, and ammonia support reliable operation in demanding environments.
Stable long term performance: The linear performance warranty ensures 94.6% output at 12 years and 87.4% at 30 years, with a low total degradation rate of around 0.42% per year. This predictable performance simplifies financial modeling and long term yield planning.
Optimized for modern 1500 V systems: A maximum system voltage of 1500 V and a 25 A series fuse rating allow flexible string design and reduced balance of system costs. The module integrates smoothly with contemporary central and string inverters used in large installations.
The CW Enerji CWT620-156TN10 solar panel converts sunlight into usable DC power through its high efficiency N-type TOPCon monocrystalline cells. Each of the 156 cells consists of a finely engineered semiconductor structure that releases electrons when exposed to sunlight. These electrons flow through a dense 16 busbar grid, which reduces electrical losses and increases current collection. Under standard test conditions, the module delivers 620 Wp at a maximum power voltage of 45.93 V and a current of 13.5 A. When connected in series and parallel strings, multiple panels feed a DC bus that is then converted to AC by a compatible inverter. The anti reflection, self cleaning glass improves light transmission, while a robust backsheet and frame shield internal components from moisture and mechanical stress. Temperature coefficients are optimized so that power loss remains limited as operating temperatures increase in real world conditions.
N-Type TOPCon cell absorption and charge generation: N-type TOPCon cells are built with a tunneling oxide and passivated contact structure on the rear side. This structure helps carriers move efficiently while reducing surface recombination losses. When photons strike the 182x91 mm cells, electron hole pairs form within the silicon lattice. The internal electric field then separates these charges and drives electrons toward the front contacts, creating a stable direct current flow.
Current collection through 16 busbars and low resistance layout: Each cell uses 16 fine busbars that shorten the distance carriers travel before collection. This dense grid design lowers resistive losses and improves shade tolerance at the cell level. The interconnected cells are wired in series to reach operating voltages around 45.93 V at maximum power and 55.34 V open circuit. The module design balances current and voltage to maximize real world energy yield across different irradiance levels.
System integration, protection, and long term stability: The panel outputs DC power through an IP68 rated junction box and factory installed cables, which simplify connection to inverters and combiners. A maximum system voltage of 1500 V allows longer strings, reducing cable runs and BOS components. The glass with anti reflection coating supports self cleaning, which keeps more light reaching the cells and stabilizes performance over time. Combined with controlled temperature coefficients for Pmax, Voc, and Isc, the design maintains a predictable power curve over its 30 year performance warranty period.
| Brand | CW Enerji Mühendislik Ticaret ve Sanayi A.Ş |
| Country of Origin | Turkey |
| Model Number | CWT620-156TN10 |
| Cell Technology | N-type TOPCon monocrystalline, 16 busbars |
| Cell Size | 182 × 91 mm |
| Number of Cells | 156 (26 × 6 configuration) |
| Module Type | Monofacial monocrystalline module |
| Power Range for Series | 615 ~ 635 Wp (156TN10 family) |
| Maximum Power (Pmax) | 620 Wp |
| Module Efficiency | 22.18 % |
| Power Tolerance | 0 ~ +5 W positive tolerance |
| Voltage at Maximum Power (Vmpp) | 45.93 V |
| Current at Maximum Power (Impp) | 13.5 A |
| Open Circuit Voltage (Voc) | 55.34 V |
| Short Circuit Current (Isc) | 14.22 A |
| Maximum System Voltage | 1500 V DC (Class II) |
| Maximum Series Fuse Rating | 25 A |
| Operating Temperature Range | -40 ~ +85 °C |
| Temperature Coefficient of Pmax | -0.30 % / °C |
| Temperature Coefficient of Voc | -0.26 % / °C |
| Temperature Coefficient of Isc | +0.04 % / °C |
| Total Annual Degradation Rate | Approx. 0.42 % per year (linear performance) |
| Front Glass Type | Self cleaning, anti reflection coated glass |
| Junction Box Protection Class | IP68 rated junction box |
| Panel Dimensions (H × W × D) | 2465 × 1134 × 35 mm |
| Weight | 31.1 kg |
| Maximum Wind Load | 2400 Pa |
| Maximum Snow Load | 5400 Pa |
Certifications: IEC 61215, IEC 61730-1, IEC 61730-2, IEC 62804 (PID resistance), IEC 61701 (salt mist corrosion), IEC 62716 (ammonia corrosion), ISO 9001:2015, ISO 14001:2015, ISO 45001:2018.
Inverter Compatibility: Designed for 1500 V DC systems and compatible with most modern string and central inverters that support high power N-type TOPCon modules.
Environmental: Suitable for coastal, agricultural, and industrial sites due to certified resistance to salt mist, ammonia, and potential induced degradation.
Warranty: 12 year product warranty and 30 year linear performance warranty, with 94.6% output guaranteed at year 12 and 87.4% at year 30 under standard conditions.
● Available | Contact us for lead time and pricing
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