EGing PV 675
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EGing PV 675

EGing PV 675

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EGing EG-685NT66-HU/BF-DG 675W N-Type TOPCon Bifacial Solar Panel

Model EG-685NT66-HU/BF-DG | N-Type TOPCon | 132 Half-Cell N-Type Mono | Bifacial | 1500V System Voltage

675 Wp
Max Power Output
21.72 %
Module Efficiency
132
N-Type TOPCon

Product Overview

The EGing EG-685NT66-HU/BF-DG 675W N-Type TOPCon bifacial solar panel is engineered for high output commercial and utility projects where every square meter matters. This advanced module combines N-Type TOPCon cell technology, bifacial generation and a 132 half-cell layout to deliver strong performance in a compact footprint. With a maximum power rating of 675 Wp and module efficiency up to 21.72 %, it is ideal for space constrained rooftops and high yield ground mounts. Power is maintained through a low total degradation rate of 0.42 % per year, supported by a 30 year linear power warranty. Robust construction with 2 mm glass, an anodized aluminium frame and IP68 junction box ensures durability in harsh climates. This panel is designed by EGing Photovoltaic Technology Co., Ltd. in China, a Tier 1 manufacturer focused on long term reliability and stable energy yield.

Key Benefits

High power density: Each module delivers up to 675 Wp, allowing more installed capacity on the same structure. This helps reduce balance of system costs per watt and simplifies array design for large projects.

Advanced N-Type TOPCon cells: N-Type TOPCon technology offers lower degradation and better temperature behaviour than conventional P-type cells. Stable long term generation is supported even under high irradiance and hot conditions.

Bifacial energy gain: The bifacial design captures light from the front and rear sides for higher total yield. Backside power gain increases kWh output without increasing module footprint or support structure count.

Proven durability and protection: An IP68 junction box, anodized aluminium frame and 2 mm glass support long field lifetimes. The module is rated for 1500 V systems with a 30 A series fuse rating for design flexibility and enhanced safety.

Long term warranty coverage: A 12 year product warranty is combined with a 30 year linear power warranty. Power output is guaranteed at 90 % after 10 years and 87.4 % after 30 years, aligned with a low annual degradation rate of 0.42 %.

How It Works

This N-Type TOPCon bifacial solar panel converts sunlight into DC electricity using advanced mono crystalline cells connected in a 132 half cell layout. Front side irradiance is captured by the main active surface while rear side cells use reflected and diffuse light from the ground or roof. Multi busbar cell design reduces electrical resistance and improves current collection, resulting in higher power at the same irradiance level. The module operates efficiently across a wide temperature range, supported by a temperature coefficient of -0.3 % per degree Celsius for Pmax. When connected to a compatible string or central inverter, the module’s DC power is combined and converted to AC for site consumption or grid export. Over its lifetime, degradation is tightly controlled, so energy yield remains strong even in the later years of operation.

N-Type TOPCon cell architecture: N-Type TOPCon cells feature a passivated contact structure that reduces recombination losses. This design allows higher efficiency and better performance under high irradiance and elevated module temperatures. Because N-Type cells are less prone to light induced degradation, output remains more stable during the first years of operation and beyond.

Bifacial generation from front and rear: The glass and cell layout allow light to reach both surfaces of the module. Direct sunlight is captured on the front, while reflected light from bright surfaces increases rear side current. This bifacial gain can raise total energy yield compared with monofacial modules, especially on high albedo surfaces like concrete, white roofs or light gravel.

Optimised electrical performance and safety: At standard test conditions, the module delivers 675 Wp with a Vmpp of 39.43 V and Impp of 17.12 A. The open circuit voltage is 47.22 V and short circuit current reaches 18.14 A, enabling efficient string design in 1500 V systems. A 30 A series fuse rating supports reliable protection coordination with upstream devices.

Thermal behaviour and operating range: The module is designed to operate between -40 °C and 85 °C for global deployment. A temperature coefficient of Voc at -0.25 % per degree Celsius and Isc at 0.04 % per degree Celsius keeps performance predictable. Typical nominal operating cell temperature is around 44 ± 2 °C, supporting stable daily output under field conditions.

Technical Specifications

Manufacturer EGing Photovoltaic Technology Co., Ltd.
Country of Origin China
Model Number EG-685NT66-HU/BF-DG
Technology N-Type TOPCon bifacial mono crystalline
Power Range 660 Wp to 685 Wp
Nominal Maximum Power (Pmax) 675 Wp at STC
Module Efficiency Range 21.24 % to 22.05 %
Module Efficiency at 675 Wp 21.72 %
Power Tolerance 0 ~ +3 % positive tolerance
Voltage at Maximum Power (Vmpp) 39.43 V
Current at Maximum Power (Impp) 17.12 A
Open Circuit Voltage (Voc) 47.22 V
Short Circuit Current (Isc) 18.14 A
Backside Bifacial Gain (example at 10 %) Up to 742 Wp equivalent at 10 % rear gain for 675 W front rating
Maximum System Voltage 1500 V DC
Series Fuse Rating 30 A
Nominal Operating Cell Temperature (NOCT) 44 ± 2 °C
Operating Temperature Range -40 °C to 85 °C
Temperature Coefficient of Pmax -0.3 % / °C
Temperature Coefficient of Voc -0.25 % / °C
Temperature Coefficient of Isc +0.04 % / °C
Cell Type and Size N-Type mono crystalline, 210 mm x 105 mm cells
Number of Cells 132 half cells
Module Dimensions (H x W x D) 2384 mm x 1303 mm x 35 mm
Module Weight 38.3 kg
Glass Thickness 2.0 mm
Frame Type Anodized aluminium alloy frame
Junction Box Protection Rating IP68 rated junction box
Connector Type MC4 compatible connectors
Cable Cross Section 4 mm² solar cable
Cable Length (Portrait) +300 mm / -300 mm

Certifications & Compliance

Certifications: In-house PV lab testing, CNAS approved, TUV and VDE certified manufacturing and performance standards.
Inverter Compatibility: Designed for 1500 V DC systems and compatible with most leading string and central inverters that accept high current bifacial modules.
Environmental: Suitable for harsh outdoor environments with IP68 junction box, corrosion resistant anodized aluminium frame and glass designed for heavy loads and hail impact.
Warranty: 12 year product warranty plus 30 year linear power warranty, guaranteeing 90 % of rated output at 10 years and 87.4 % at 30 years with a typical annual degradation rate of 0.42 %.

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.

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

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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