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SEG Solar SEG-475-BTB-BG

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SEG Solar SEG-475-BTB-BG

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SKU PES-SPS-SOL-16387

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$180.00 USD

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SKU: PES-SPS-SOL-16387
Min purchase: 10 pcs

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Unlimited lifetime support, always available.

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SEG Solar SEG-475-BTB-BG $180.00

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Returns are accepted within 30 days of delivery and require an RMA number. Returns of non-defective items carry a 40% restocking fee per our Refund Policy; defective, damaged-in-transit, or mis-shipped items are exempt. Special-order items are final sale.

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All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

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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.

SEG Solar SEG-475-BTB-BG 475W N-Type TOPCon Bifacial Solar Panel

Model SEG-475-BTB-BG | N-Type TOPCon | 120 Half-Cell | Bifacial | 1500V System Voltage

475 W

Max Power Output

22.17 %

Module Efficiency

120 Cells

N-Type TOPCon

Product Overview

The SEG Solar SEG-475-BTB-BG 475W N-Type TOPCon bifacial solar panel is engineered for high efficiency, long life, and reliable performance in demanding conditions. This premium module uses advanced N-Type TOPCon cell technology with a bifacial design to capture energy from both the front and rear sides. Power output up to 475 watts is delivered while module efficiency reaches up to 22.17 percent under standard test conditions. This makes the panel an ideal choice for residential rooftops, commercial arrays, and utility scale projects where space is valuable. The double glass construction and robust anodized aluminum frame provide excellent mechanical strength and long term durability. Temperature coefficients are optimized to support stable performance in hot climates and cold environments alike. With a 30 year linear power warranty and a 15 year product warranty, dependable energy production and bankable returns are supported over the full system lifetime. This SEG Solar 475W module helps reduce energy costs and supports lower carbon footprints while maintaining high quality and safety standards.

Key Benefits

High power density in compact footprint: Up to 475 watts of output is delivered from a 1909 x 1134 mm module, so more energy is produced from limited roof or ground space.

Advanced N-Type TOPCon cell technology: N-Type cells with TOPCon architecture reduce degradation, enhance low light performance, and support higher efficiency over the panel lifetime.

Bifacial design for extra yield: Energy is harvested from both sides of the module, increasing total system yield when installed over reflective surfaces or bright ground coverings.

Robust double glass construction: 2 mm anti reflection coated front glass and low iron rear glass improve durability and weather resistance while supporting long term optical performance.

Long term peace of mind: A 15 year product warranty and a 30 year linear power warranty with 87.4 percent end of life output help secure project returns and lower levelized energy cost.

Excellent thermal performance: Low power temperature coefficient of -0.30 percent per degree Celsius supports better performance in hot climates and on high irradiance sites.

How It Works

This SEG Solar bifacial TOPCon module converts sunlight into clean DC electricity using advanced N-Type monocrystalline cells. Each cell is designed to minimize electron recombination, so more of the captured light is turned into usable power. The front side of the panel receives direct sunlight while the rear side harvests reflected light from the surrounding environment. This bifacial effect can increase total energy generation compared to a standard monofacial module. The half cell layout reduces resistive losses and helps mitigate the impact of partial shading on output. Double glass construction protects the cells from moisture, mechanical stress, and environmental pollutants. The generated DC current flows through the integrated junction box and MC4 compatible connectors to the system inverter. The inverter converts DC power into AC power for homes, businesses, or grid export. Stable performance is maintained over a broad temperature range thanks to optimized temperature coefficients and high quality materials. Over the lifetime of the system, this design supports reliable daily production and strong project economics.

N-Type TOPCon cell conversion: Photons strike the N-Type monocrystalline TOPCon cells and free electrons are generated within the silicon structure. These electrons are guided by the cell’s passivated contacts and busbars, producing a stable DC current with reduced internal losses over time.

Bifacial energy capture: The front glass absorbs direct solar irradiance while the rear glass collects light reflected from roofs, ground, or nearby surfaces. This rear side contribution increases daily yield, especially on light colored or high albedo surfaces, boosting the overall system performance ratio.

System integration and output: Current from the half cell strings is combined in the IP68 junction box, which uses three bypass diodes to improve behavior under partial shading. MC4 compatible connectors link the module to string cabling, which is then routed to an inverter that converts DC to AC power for on site consumption or export.

Technical Specifications

Module Type	SEG-475-BTB-BG
Manufacturer	SEG Solar Inc., United States
Cell Technology	N-Type TOPCon monocrystalline, half cell
Cell Size	182 x 91 mm cells (120 pcs)
Module Power Range	465 Wp to 480 Wp (series range)
Maximum Power (Pmax) – Front (STC)	475 Wp
Power Tolerance	0 to +3 %
Module Efficiency (front, STC)	Up to 21.94 % to 22.17 % depending on configuration
Voltage at Maximum Power (Vmpp) – Front	35.8 V (front, 475 Wp rating)
Current at Maximum Power (Impp) – Front	13.27 A (front, 475 Wp rating)
Open Circuit Voltage (Voc) – Front	43.0 V
Short Circuit Current (Isc) – Front	13.94 A
Nominal Operating Cell Temperature (NOCT)	45 ± 2 °C
Operating Temperature Range	-40 °C to +85 °C
Temperature Coefficient of Pmax	-0.30 % / °C
Temperature Coefficient of Voc	-0.25 % / °C
Temperature Coefficient of Isc	+0.046 % / °C
Maximum System Voltage	1500 V DC
Series Fuse Rating	30 A
Module Dimensions (H x W x D)	1909 x 1134 x 30 mm
Weight	27.3 kg
Front Glass	2.0 mm AR coated semi tempered glass
Back Glass	Low iron glass, bifacial design
Frame Material	Anodized aluminium alloy frame
Junction Box	IP68 rated junction box with 3 bypass diodes
Connector Type	MC4 compatible connectors
Cable Type and Length	12 AWG PV wire, 1200 mm leads
Mechanical Load Rating (Front)	5400 Pa / 113 psf*
Mechanical Load Rating (Rear)	2400 Pa / 50 psf*
Total Degradation after 30 Years	87.4 % of initial power guaranteed after 30 years

*Refer to SEG Solar installation manual for full load conditions and mounting guidance.

Certifications & Compliance

Certifications: IEC 61215:2016, IEC 61730:2016, UL 1703, UL 61730, CEC listing, IEC 62804 PID resistance, IEC 61701 salt mist, IEC 62716 ammonia resistance, IEC 60068 dust and sand, IEC 61215 hailstone tests, Fire Type 2 (UL 61730).
Inverter Compatibility: Compatible with most modern string and central inverters designed for up to 1500 V DC systems, with MPPT voltage windows that align with the module’s Vmpp range.
Environmental: Designed and manufactured under ISO 9001 quality management, ISO 14001 environmental management, and ISO 45001 occupational health and safety standards for consistent, responsible production.
Warranty: 15 year product warranty covering materials and workmanship, plus a 30 year linear power output warranty with maximum 0.42 percent annual degradation and at least 87.4 percent of initial power guaranteed in year 30.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

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.

How does your Lifetime Customer Support work?

SEG Solar SEG-475-BTB-BG 475W N-Type TOPCon Bifacial Solar Panel

Model SEG-475-BTB-BG | N-Type TOPCon | 120 Half-Cell | Bifacial | 1500V System Voltage

475 W

Max Power Output

22.17 %

Module Efficiency

120 Cells

N-Type TOPCon

Product Overview

Key Benefits

High power density in compact footprint: Up to 475 watts of output is delivered from a 1909 x 1134 mm module, so more energy is produced from limited roof or ground space.

Advanced N-Type TOPCon cell technology: N-Type cells with TOPCon architecture reduce degradation, enhance low light performance, and support higher efficiency over the panel lifetime.

Bifacial design for extra yield: Energy is harvested from both sides of the module, increasing total system yield when installed over reflective surfaces or bright ground coverings.

Robust double glass construction: 2 mm anti reflection coated front glass and low iron rear glass improve durability and weather resistance while supporting long term optical performance.

Long term peace of mind: A 15 year product warranty and a 30 year linear power warranty with 87.4 percent end of life output help secure project returns and lower levelized energy cost.

Excellent thermal performance: Low power temperature coefficient of -0.30 percent per degree Celsius supports better performance in hot climates and on high irradiance sites.

How It Works

Technical Specifications

Module Type	SEG-475-BTB-BG
Manufacturer	SEG Solar Inc., United States
Cell Technology	N-Type TOPCon monocrystalline, half cell
Cell Size	182 x 91 mm cells (120 pcs)
Module Power Range	465 Wp to 480 Wp (series range)
Maximum Power (Pmax) – Front (STC)	475 Wp
Power Tolerance	0 to +3 %
Module Efficiency (front, STC)	Up to 21.94 % to 22.17 % depending on configuration
Voltage at Maximum Power (Vmpp) – Front	35.8 V (front, 475 Wp rating)
Current at Maximum Power (Impp) – Front	13.27 A (front, 475 Wp rating)
Open Circuit Voltage (Voc) – Front	43.0 V
Short Circuit Current (Isc) – Front	13.94 A
Nominal Operating Cell Temperature (NOCT)	45 ± 2 °C
Operating Temperature Range	-40 °C to +85 °C
Temperature Coefficient of Pmax	-0.30 % / °C
Temperature Coefficient of Voc	-0.25 % / °C
Temperature Coefficient of Isc	+0.046 % / °C
Maximum System Voltage	1500 V DC
Series Fuse Rating	30 A
Module Dimensions (H x W x D)	1909 x 1134 x 30 mm
Weight	27.3 kg
Front Glass	2.0 mm AR coated semi tempered glass
Back Glass	Low iron glass, bifacial design
Frame Material	Anodized aluminium alloy frame
Junction Box	IP68 rated junction box with 3 bypass diodes
Connector Type	MC4 compatible connectors
Cable Type and Length	12 AWG PV wire, 1200 mm leads
Mechanical Load Rating (Front)	5400 Pa / 113 psf*
Mechanical Load Rating (Rear)	2400 Pa / 50 psf*
Total Degradation after 30 Years	87.4 % of initial power guaranteed after 30 years

*Refer to SEG Solar installation manual for full load conditions and mounting guidance.

Certifications & Compliance

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.