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BYD 590W Solar Panel (NLBK-36)

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BYD 590W Solar Panel (NLBK-36)

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SKU PES-SPS-SOL-1950

OEM Authorized Dealer Full OEM Warranty

$180.00 USD

~~$0.01~~ $180.00 USD

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Sold by the pallet (10) — PowerLink & trade: request 10+

Sold by the pallet (10) PowerLink Network & trade customers can request 10+ →$0.31/W

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SKU: PES-SPS-SOL-1950
Unit price: $0.31/W

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BYD 590W Solar Panel (NLBK-36) $180.00

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What is your return policy?

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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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.

How long will it take to receive my order?

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.

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?

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.

BYD NLBK-36 590W N-Type TOPCon Bifacial Monocrystalline Solar Panel

Model NLBK-36 590 | N-Type TOPCon | 144 Half-Cell Monocrystalline | Bifacial | 1500V System Voltage

590 W

Max Power Output

22.84%

Module Efficiency

144

N-Type TOPCon

Product Overview

The BYD NLBK-36 590W N-Type TOPCon bifacial monocrystalline solar panel is engineered for high performance in demanding commercial and utility projects. This advanced module uses N-type TOPCon cell technology to deliver outstanding efficiency and reliable power output over its long lifetime. With a rated maximum power of 590 Wp and module efficiency up to 22.84%, it allows more energy generation from limited roof or ground space. The bifacial design captures light from both the front and rear surfaces, increasing yield on suitable sites. A robust anodized aluminium frame, 2 mm tempered glass, and IP68 junction box construction support long-term durability in harsh outdoor conditions. The module is designed for 1500 V systems, which suits large arrays and optimized BOS costs. A 12-year product warranty and 30-year performance warranty with an 87.4% power level at year 30 provide strong long-term assurance. This panel is produced by BYD Company Limited in China, a globally recognized clean energy manufacturer.

Key Benefits

High power density for limited space: With up to 590 Wp and 22.84% efficiency, this module delivers strong power from a compact footprint. Fewer panels are needed for a given system size, which can reduce mounting and wiring costs.

Bifacial energy gain: The bifacial construction allows power generation from reflected and diffuse light at the rear side. On bright, reflective surfaces, this can significantly raise total energy yield over the system lifetime.

Long-term performance stability: An annual degradation rate of about 0.42% supports 87.4% power output at year 30. This stable performance helps project owners forecast production and revenue more accurately.

Robust, utility-scale ready design: The panel supports a maximum system voltage of 1500 V, ideal for large commercial fields and utility plants. Its anodized aluminium frame, 2 mm glass, and IP68 junction box are engineered for harsh site conditions.

Backed by trusted warranties: BYD provides a 12-year product warranty and a 30-year performance warranty. The extended coverage gives installers and asset owners confidence in long-term reliability and bankability.

How It Works

This BYD NLBK-36 590W solar panel converts sunlight into clean DC electricity using advanced N-type TOPCon monocrystalline cells. When sunlight hits the front glass, photons are absorbed by the silicon cells and generate electron flow. Because the panel is bifacial, the rear side can also collect light reflected from the ground or nearby surfaces, which increases total energy capture. The generated DC current flows through the three-diode IP68 junction box and exits via 4 mm² solar cables to the string wiring. Connected modules form a string that feeds a solar inverter, where DC is transformed into usable AC power. Carefully engineered temperature coefficients help maintain efficient operation in hot climates. The aluminium frame and tempered glass protect the cells and laminated layers while the system operates in varied outdoor conditions.

N-Type TOPCon monocrystalline cells: The panel uses N-type monocrystalline cells with TOPCon technology to boost efficiency and reduce degradation. These cells maintain performance better under light-induced degradation effects than conventional P-type cells, supporting strong long-term yields.

Bifacial light harvesting: Glass and encapsulation materials allow both front and rear surfaces to participate in energy capture. Light reflected from bright ground coverings, rooftops, or surrounding structures reaches the back side, creating additional current and energy production.

Optimized electrical output and protection: At standard test conditions, the panel delivers 45.04 V at maximum power and 13.1 A of current. Bypass diodes in the junction box help reduce power loss during partial shading, while the 1500 V rating supports long strings in larger arrays.

Technical Specifications

Brand	BYD Company Limited
Model	NLBK-36 590
Cell Technology	Monocrystalline N-Type TOPCon
Cell Count and Type	144 half-cut cells
Technology Type	Bifacial module
Power Range	570 – 600 Wp
Maximum Power (Pmax) – Primary Rating	590 Wp
Voltage at Maximum Power (Vmpp) – 590 Wp	45.04 V
Current at Maximum Power (Impp) – 590 Wp	13.1 A
Open Circuit Voltage (Voc) – 590 Wp	53.92 V
Short Circuit Current (Isc) – 590 Wp	13.56 A
Alternative Maximum Power (Pmax) Rating	446 Wp
Voltage at Maximum Power (Vmpp) – 446 Wp	42.8 V
Current at Maximum Power (Impp) – 446 Wp	10.42 A
Open Circuit Voltage (Voc) – 446 Wp	50.9 V
Short Circuit Current (Isc) – 446 Wp	10.94 A
Module Efficiency Range	22.07 – 23.23 %
Typical Operating Module Temperature (NMOT)	45 ± 2 °C
Operating Temperature Range	-40 to +85 °C
Temperature Coefficient of Pmax	-0.278 %/°C
Temperature Coefficient of Voc	-0.239 %/°C
Temperature Coefficient of Isc	0.044 %/°C
Maximum System Voltage (DC)	1500 V
Series Fuse Rating	30 A
Power Tolerance	0 to +0.85 %
Degradation and Power Retention	30-year power guarantee to 87.4 % of original output
Panel Dimensions (H × W × D)	2278 × 1134 × 30 mm
Panel Weight	32 kg
Front Glass Thickness	2 mm
Frame Material and Type	Anodized aluminium frame
Junction Box Protection Class	IP68 rated junction box
Number of Bypass Diodes	3 diodes
Cable Cross-Section	4 mm² solar cable
Country of Manufacture	China

Certifications & Compliance

Certifications: Designed to meet international IEC standards for safety and performance commonly required for utility and commercial projects. Specific certificates can be confirmed on request.
Inverter Compatibility: Compatible with most modern grid-tied string and central inverters designed for 1500 V DC systems. Always follow the inverter manufacturer’s string sizing guidelines.
Environmental: Engineered for outdoor use with an operating range from -40 to +85 °C and IP68 junction box protection for reliable performance in challenging climates.
Warranty: 12-year limited product warranty and 30-year linear power warranty with output guaranteed at 87.4% of the initial rated power at year 30, subject to BYD warranty terms.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and project-specific 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?

BYD NLBK-36 590W N-Type TOPCon Bifacial Monocrystalline Solar Panel

Model NLBK-36 590 | N-Type TOPCon | 144 Half-Cell Monocrystalline | Bifacial | 1500V System Voltage

590 W

Max Power Output

22.84%

Module Efficiency

144

N-Type TOPCon

Product Overview

Key Benefits

How It Works

Technical Specifications

Brand	BYD Company Limited
Model	NLBK-36 590
Cell Technology	Monocrystalline N-Type TOPCon
Cell Count and Type	144 half-cut cells
Technology Type	Bifacial module
Power Range	570 – 600 Wp
Maximum Power (Pmax) – Primary Rating	590 Wp
Voltage at Maximum Power (Vmpp) – 590 Wp	45.04 V
Current at Maximum Power (Impp) – 590 Wp	13.1 A
Open Circuit Voltage (Voc) – 590 Wp	53.92 V
Short Circuit Current (Isc) – 590 Wp	13.56 A
Alternative Maximum Power (Pmax) Rating	446 Wp
Voltage at Maximum Power (Vmpp) – 446 Wp	42.8 V
Current at Maximum Power (Impp) – 446 Wp	10.42 A
Open Circuit Voltage (Voc) – 446 Wp	50.9 V
Short Circuit Current (Isc) – 446 Wp	10.94 A
Module Efficiency Range	22.07 – 23.23 %
Typical Operating Module Temperature (NMOT)	45 ± 2 °C
Operating Temperature Range	-40 to +85 °C
Temperature Coefficient of Pmax	-0.278 %/°C
Temperature Coefficient of Voc	-0.239 %/°C
Temperature Coefficient of Isc	0.044 %/°C
Maximum System Voltage (DC)	1500 V
Series Fuse Rating	30 A
Power Tolerance	0 to +0.85 %
Degradation and Power Retention	30-year power guarantee to 87.4 % of original output
Panel Dimensions (H × W × D)	2278 × 1134 × 30 mm
Panel Weight	32 kg
Front Glass Thickness	2 mm
Frame Material and Type	Anodized aluminium frame
Junction Box Protection Class	IP68 rated junction box
Number of Bypass Diodes	3 diodes
Cable Cross-Section	4 mm² solar cable
Country of Manufacture	China

Certifications & Compliance

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and project-specific 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.