S-Energy SL65-78BGJ-580S
S-Energy SL65-78BGJ-580S
truck
In Stock

Get yours today!

truck
9+ sold

In the last 7 days

truck
Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

SKU  PES-SPS-SOL-16304

S-Energy SL65-78BGJ-580S

S-Energy SL65-78BGJ-580S

OEM Authorized Dealer BABA Compliant Full OEM Warranty 7-10 Business Day Delivery

Secure Payment Methods

Visa Mastercard PayPal American Express Discover
truck
In Stock

Get yours today!

truck
9+ sold

In the last 7 days

truck
Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

In High Demand! Order Now To Secure Your Items

form icon
Request a Free Quote
Support Agent

Got Questions? We’re Here to Help!

Our support team is ready to assist you with product guidance, order details, or any questions you might have.
phone Mon-Fri 10am-6pm EST
View full details

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

What is your return policy?

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.

What’s covered by your return policy?

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.

S-Energy SL65-78BGJ-580S 580W Bifacial Monocrystalline Solar Panel

Model SL65-78BGJ-580S | Monocrystalline Bifacial | 156 Cells (6x26 Matrix) Half-Cut | Bifacial | 1500V System Voltage

580 W
Max Power Output
20.7%
Module Efficiency
156
Monocrystalline Cells

Product Overview

The S-Energy SL65-78BGJ-580S 580W bifacial monocrystalline solar panel is designed for projects that demand high output, durability, and long term reliability. This module uses advanced bifacial technology to capture light from both sides, helping increase total energy yield on rooftops, carports, and ground mount systems. With a module efficiency of 20.7%, the panel delivers strong performance even where installation space is limited. The monocrystalline half-cut cells support efficient power generation while keeping electrical losses low across the 156 cell layout.

Rated at 580W under standard test conditions, this module suits commercial, industrial, and utility arrays seeking high density power. The maximum system voltage of 1500V allows longer strings, which can reduce balance of system costs and simplify design. A robust anodized aluminium frame, 3.2mm tempered glass with anti reflection coating, and a transparent backsheet are combined to withstand demanding site conditions. Backed by a 12 year product warranty and a 25 year performance warranty, this panel is engineered to deliver stable output with just 0.6% annual degradation.

Key Benefits

High 580W power class: The 580W rated output helps reduce the number of panels required per project, saving space and hardware.

Bifacial energy gain: Rear side generation captures reflected light from surfaces like white roofs, concrete, or snow for higher yields.

Optimized monocrystalline design: High efficiency monocrystalline cells, combined with half cut architecture, limit losses and support stable power production.

Robust mechanical strength: Snow load of 5,400Pa and wind load of 2,400Pa support reliable operation in harsh climates and exposed sites.

Long term warranty coverage: A 12 year product warranty and 25 year performance warranty provide strong assurance on long life operation.

Flexible system integration: 1500V system voltage, MC4 compatible connectors, and 4mm² cables simplify design and installation across many inverters.

How It Works

This S-Energy SL65-78BGJ-580S bifacial monocrystalline solar panel converts sunlight into DC electricity using high efficiency silicon cells. Photons strike the front and rear surfaces of the bifacial cells, releasing electrons that flow through the circuit to your inverter. The rated maximum power of 580W is achieved at 45.2V and 12.84A under standard test conditions. When mounted above reflective ground or bright roofing, the rear side also receives usable irradiance. That extra light increases the effective energy yield beyond the front side rating.

The panel operates reliably within a temperature range from -40°C to 85°C, with a nominal operating cell temperature of 45±2°C. As cell temperature rises, output is reduced by the specified temperature coefficients, which are -0.35% per °C for Pmax and -0.27% per °C for Voc. Correct string sizing and inverter matching help maintain safe operating conditions and maximize harvest. Integrated junction boxes, bypass diodes, and MC4 compatible connectors support efficient current flow and reduce mismatch losses in shaded or uneven conditions.

Front side power generation: The front surface uses 156 bifacial monocrystalline cells sized 182 x 91mm to capture direct sunlight efficiently. Under 1,000W/m² irradiance at 25°C cell temperature, the module delivers 580W at 45.2V and 12.84A for strong base production.

Rear side bifacial gain: The transparent backsheet allows light to reach the rear cell surfaces, generating additional current. Depending on site albedo and mounting height, total power can increase beyond the front side rating, improving kWh per installed watt.

System integration and protection: The panel connects into strings up to 1500V using MC4 type connectors and 4mm² cables. Bypass diodes in the IP68 junction box help protect cells from hot spots and maintain output when partial shading occurs across the array.

Technical Specifications

Brand / Manufacturer S-Energy Co., Ltd. (Korea)
Model Number SL65-78BGJ-580S
Cell Technology Bifacial monocrystalline silicon
Cell Size 182 × 91 mm
Number of Cells 156 cells (6 × 26 matrix)
Module Type Bifacial monocrystalline solar module
Power Range (Series) 580W / 585W / 590W / 595W / 600W
Maximum Power (Pmax) 580 Wp (front side, STC)
Panel Efficiency 20.7%
Voltage at Maximum Power (Vmpp) 45.2 V
Current at Maximum Power (Impp) 12.84 A
Open Circuit Voltage (Voc) 53.5 V
Short Circuit Current (Isc) 13.6 A
Power Tolerance 0 ~ +1% (0 ~ +5W per series data)
Nominal Operating Cell Temperature (NOCT) 45 ± 2 °C
Operating Temperature Range -40 °C to +85 °C
Temperature Coefficient of Pmax -0.35 % / °C
Temperature Coefficient of Voc -0.27 % / °C
Temperature Coefficient of Isc +0.04 % / °C
Maximum System Voltage 1500 V DC
Maximum Series Fuse Rating 30 A
Panel Dimensions (H × W × D) 2465 × 1134 × 40 mm
Panel Weight 31 kg
Front Glass 3.2 mm tempered glass with anti reflection coating
Backsheet Type Transparent backsheet (mesh)
Frame Material Anodized aluminium, silver
Junction Box IP68, with 3 bypass diodes
Connector Type MC4 compatible
Cable Cross Section 4 mm² (approx. 12 AWG)
Cable Length Positive 1000 mm / negative 500 mm
Mechanical Load Rating Snow load 5,400 Pa / wind load 2,400 Pa

Certifications & Compliance

Certifications: KS C 8561 crystalline silicon photovoltaic module; ISO 9001 quality management; ISO 14001 environmental management; ISO 45001 occupational health and safety.
Inverter Compatibility: Suitable for modern string and central inverters supporting 1500V DC systems and bifacial module operation.
Environmental: Designed for outdoor use with IP68 junction box, high strength glass, and materials tested for high temperature and humidity resistance.
Warranty: 12 year product warranty against defects in materials and workmanship; 25 year linear performance warranty with 85% output retained and approximately 0.6% annual degradation.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

//www.portlandiaelectric.supply/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb12.gif

Prepare for Anything

From hurricanes to blackouts, reliable solar power ensures you're able to keep your home & family safe no matter what comes your way.

//www.portlandiaelectric.supply/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb12.gif

Solar Power Made Easy

Making one-click solar solutions simple since 2018. Whether you’re powering a cabin, charging devices, or backing up your home.

//www.portlandiaelectric.supply/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb12.gif

Secure Your Independence

Say goodbye to reliance on the energy companies. Enjoy the same freedom that 50,000+ customers have with their own solar power system.

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.

Get a Complimentary Solar Proposal Today!

$150 Value - Free Offer (Limited Time Only!) No Strings Attached. Totally Free. Takes Less than 2 Minutes.