EGing PV 685
EGing PV 685
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EGing PV 685

EGing PV 685

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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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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.

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

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

685 Wp
Max Power Output
22.05%
Module Efficiency
132
N-Type TOPCon

Product Overview

The EGing EG-685NT66-HU/BF-DG 685W N-Type TOPCon bifacial solar panel delivers high performance for large scale and commercial solar projects. This advanced module uses N-Type TOPCon cells and bifacial glass construction to harvest energy from both sides of the panel. Rated up to 685 Wp with module efficiency reaching 22.05%, it supports powerful arrays in limited roof or ground space. The Aurora Pro Series design offers low degradation and strong temperature behavior for long term output. A positive power tolerance from 0 to +3% helps ensure reliable nameplate performance in real conditions. The panel is engineered with 132 N type monocrystalline cells, a durable anodized aluminum frame, and IP68 junction box protection. With a maximum system voltage of 1500 V and robust 30 A series fuse rating, it integrates seamlessly into modern high voltage strings. This EGing PV 685 module is an excellent choice where high yield, reliability, and long lifecycle value are essential. Its bifacial design further increases energy yield when installed above reflective surfaces or light colored roofs.

Key Benefits

Ultra high power density: Up to 685 Wp output and efficiency up to 22.05% reduce required array area. Higher power density allows more generation on constrained roofs or sites.

Bifacial energy gain: Bifacial glass construction captures light from the front and rear surfaces. This design can increase total energy yield, especially over reflective ground or light decks.

Low degradation performance: An annual degradation rate of only 0.42% supports long term power stability. After 30 years, at least 87.4% of initial output is warranted under the linear power warranty.

Strong temperature behavior: A temperature coefficient of Pmax at -0.3% per °C helps sustain output on hot days. Better temperature response means more real world energy in warm climates and summer peaks.

Robust build and safety: Anodized aluminum frame, 2 mm glass, and IP68 junction box ensure durable operation. MC4 compatible connectors, 4 mm2 cables, and 1500 V rating support safe high voltage systems.

Trusted Tier 1 manufacturer: EGing PV has operated since 1998 as a BloombergNEF Tier 1 global producer. Strict in house testing and TUV and VDE certified labs enhance product reliability and consistency.

How It Works

This EGing TOPCon bifacial module converts sunlight into electricity using advanced N type monocrystalline cells. Each of the 132 cells sits between layers of glass and encapsulant to maximize light capture and durability. When sunlight hits the front surface, photons excite electrons in the semiconductor material and create direct current power. The bifacial rear surface also absorbs reflected and diffuse light from the ground or nearby surfaces. Busbars and multi busbar design guide the produced current through low resistance pathways to the junction box. From there, MC4 connectors deliver the DC power to inverters, which convert it into usable AC electricity. The module is optimized to maintain performance under low light, high temperatures, and long operating lifetimes. Carefully managed degradation and a linear performance warranty provide predictable long term energy generation.

N-Type TOPCon cell technology: The panel uses N type TOPCon cells that offer lower degradation than standard P type cells. These cells have improved passivation and contact structures that reduce recombination losses. As a result, more of the captured sunlight is converted into electricity across the life of the panel.

Multi busbar and bifacial design: Multi busbar cell design shortens current paths and lowers series resistance within each cell. This layout improves current collection and reduces power loss at interconnections. The bifacial glass glass structure lets light enter from both sides to boost energy harvest. Rear side gain can significantly increase annual output on bright or reflective surfaces.

System integration and protection: The module connects into 1500 V DC strings with 30 A series fuse protection for safety. An IP68 junction box shields internal connections from dust and water ingress in harsh sites. Temperature coefficients are carefully controlled so power loss stays modest as cell temperature rises. Combined with precise factory testing, this ensures dependable output across diverse climates and seasons.

Technical Specifications

Manufacturer / Brand EGing Photovoltaic Technology Co., Ltd. (China)
Model Number EG-685NT66-HU/BF-DG
Technology Aurora Pro Series N-Type TOPCon, bifacial glass glass module
Power Range 660 Wp to 685 Wp
Maximum Power at STC (Pmax) 685 Wp (front side rating)
Module Efficiency Range 21.24% to 22.05% (front side)
Voltage at Pmax (Vmpp) 39.85 V (685 Wp) / 37.3 V (520 Wp entry)
Current at Pmax (Impp) 17.19 A (685 Wp) / 13.95 A (520 Wp entry)
Open Circuit Voltage (Voc) 47.64 V (max bin) / 45 V reference value
Short Circuit Current (Isc) 18.22 A (max bin) / 14.68 A reference value
Power Tolerance 0 to +3% positive power tolerance
Total Degradation Rate 0.42% per year (linear performance assumption)
Nominal Operating Cell Temperature (NOCT) 44 ± 2 °C (typical operating condition)
Operating Temperature Range -40 °C to +85 °C
Temperature Coefficient of Pmax -0.30% per °C
Temperature Coefficient of Voc -0.25% per °C
Temperature Coefficient of Isc +0.04% per °C
Maximum System Voltage 1500 V DC (IEC)
Series Fuse Rating 30 A maximum series fuse
Bifacial Output (10% rear gain) Up to 753 Wp equivalent, module efficiency up to 24.24%
Cell Type and Count 132 N-type monocrystalline TOPCon cells, 210 x 105 mm
Panel Dimensions (H x W x D) 2384 x 1303 x 35 mm
Weight 38.3 kg
Glass Thickness and Type 2.0 mm tempered glass, bifacial glass glass structure
Frame Material Anodized aluminum alloy frame with mounting and drainage holes
Junction Box Protection IP68 junction box, factory fitted
Cable and Connector Type 4 mm² cables, MC4 compatible connectors, +300 mm / -300 mm length in portrait

Certifications & Compliance

Certifications: CNAS approved in house PV lab with TUV and VDE certified testing. EGing PV is listed as a BloombergNEF Tier 1 global manufacturer for bankable quality.
Inverter Compatibility: Designed for modern 1500 V string and central inverters in commercial, industrial, and utility projects. MC4 compatible connectors support broad inverter and optimizer platforms.
Environmental: Bifacial glass glass construction and IP68 junction box support demanding outdoor environments. Suitable for a wide temperature range from -40 °C to +85 °C under standard installation rules.
Warranty: 12 year product warranty covers materials and manufacturing quality. Linear power warranty guarantees 90% of initial output at 10 years and 87.4% at 30 years, supported by a low 0.42% annual degradation rate.

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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