CW Enerji CWT620-156TN10
CW Enerji CWT620-156TN10
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CW Enerji CWT620-156TN10

CW Enerji CWT620-156TN10

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Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

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Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

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You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

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Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

CW Enerji CWT620-156TN10 620W N-Type TOPCon Monocrystalline Solar Panel

Model CWT620-156TN10 | N-Type TOPCon | 156 Half-Cell Monocrystalline | Monofacial | 1500V System Voltage

620 Wp
Max Power Output
22.18%
Module Efficiency
156 Cells
N-Type TOPCon

Product Overview

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.

Key Benefits

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.

How It Works

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.

Technical Specifications

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 & Compliance

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.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

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Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Be Smart, Buy From an Authorized Dealer

When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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