S-Energy SL65-78BGJ-590S
S-Energy SL65-78BGJ-590S
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SKU  PES-SPS-SOL-16306

S-Energy SL65-78BGJ-590S

S-Energy SL65-78BGJ-590S

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In Stock

Get yours today!

truck
9+ sold

In the last 7 days

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Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

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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-590S 590W Bifacial Monocrystalline Solar Panel

Model SL65-78BGJ-590S | Monocrystalline Bifacial | 156 Half-Cut Cells, 182 x 91 mm | Bifacial | 1500V System Voltage

590 W
Max Power Output
21.1%
Module Efficiency
156
Monocrystalline Cells

Product Overview

The S-Energy SL65-78BGJ-590S bifacial monocrystalline solar panel delivers high power density for utility and commercial sites. This 590W module combines advanced bifacial cell technology with a robust 156 cell layout for reliable long term output. With module efficiency up to 21.1 percent, it is designed to maximize energy yield where roof or ground space is limited. The panel uses 182 x 91 millimeter monocrystalline cells to provide stable performance under varied irradiance conditions. A maximum system voltage of 1500 volts supports modern high voltage string designs and reduces balance of system costs. Its durable anodized aluminium frame and tempered glass front layer ensure strength under heavy snow and high wind loads. The bifacial construction enables additional backside generation when installed over reflective surfaces. Backed by a 12 year product warranty and a 25 year performance warranty, this solar panel is built for long term energy production.

Key Benefits

High power density: A nominal power rating of 590 watts enables more installed capacity using fewer modules on each project.

Bifacial energy gain: Bifacial cell architecture captures light from both sides to increase annual energy yield when installed over bright surfaces.

Strong mechanical design: A tempered glass front and anodized aluminium frame support high snow and wind loads for demanding climates.

Reliable long term performance: A 25 year linear power warranty and low annual degradation safeguard long term energy production for investors and owners.

Flexible system design: The 1500 volt system rating and MC4 compatible connectors simplify string sizing and integration with modern inverters.

How It Works

This S-Energy bifacial monocrystalline solar panel converts sunlight into DC electricity using high efficiency crystalline cells. Light strikes the 182 x 91 millimeter cells on the front side, generating current through the photovoltaic effect within the silicon lattice. The bifacial structure also allows reflected light from the ground or roof to reach the rear side of the cells. This additional light boosts energy yield under suitable mounting conditions with reflective surfaces. The generated direct current flows through the busbars and interconnections toward the junction box. From there, power is delivered along 4 square millimeter DC cables to an inverter for conversion to AC electricity. Once converted, the AC power can be used on site or fed into the grid according to system design. All components operate within a -40 to 85 degree Celsius range to support reliable outdoor deployment.

Front side energy capture: The front glass uses an anti reflection coating to allow more sunlight to reach the monocrystalline cells. The cells then convert this light into electrical current with high efficiency across the 590 watt rated surface.

Rear side bifacial gain: The panel features a transparent rear structure that exposes the backside of the cells. Reflected and diffuse light from the environment hits this rear surface, providing extra generation and improving overall energy yield.

Power delivery and system integration: Current from the bifacial cells is collected by an IP68 junction box with multiple bypass diodes. Standard MC4 compatible connectors and rated cabling then connect the module safely into high voltage strings up to 1500 volts.

Technical Specifications

Brand S-Energy Co., Ltd.
Model Number SL65-78BGJ-590S
Cell Technology Monocrystalline bifacial solar cells
Cell Size 182 x 91 mm
Cell Count and Layout 156 cells, 6 x 26 matrix
Module Type Bifacial monocrystalline PV module
Nominal Power Output (Pmax) 590 Wp front side, STC conditions
Power Range Series 580 Wp to 600 Wp module family
Module Efficiency 21.1% for 590 Wp rating
Voltage at Maximum Power (Vmpp) 45.7 V
Current at Maximum Power (Impp) 12.90 A
Open Circuit Voltage (Voc) 53.9 V
Short Circuit Current (Isc) 13.66 A
Power Tolerance 0 to +1%
Rear Side Power Gain (Example) Approx. 620 Wp at BSTC for 590 Wp type
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
Module Dimensions (H x W x D) 2465 x 1134 x 40 mm
Weight 31 kg
Front Glass Type 3.2 mm tempered glass with anti reflection coating
Rear Material Transparent backsheet mesh design
Frame Material and Color Silver anodized aluminium frame
Junction Box Protection Rating IP68 with 3 bypass diodes
Cable Specification 12 AWG, 4 mm², cable length +1000 mm / -500 mm
Connector Type MC4 compatible connectors

Certifications & Compliance

Certifications: KS C 8561 crystalline silicon photovoltaic module, ISO 9001 Quality Management System, ISO 14001 Environmental Management System, ISO 45001 Occupational Health and Safety Management System.
Inverter Compatibility: Suitable for most modern 1500 V string and central inverters using standard MC4 compatible connections and appropriate voltage design.
Environmental: Designed and tested for outdoor use with -40 to 85 °C temperature range and high resistance to potential induced degradation under 85 °C, 85% relative humidity at up to -1500 V DC.
Warranty: 12 year limited product warranty and 25 year linear performance warranty with 85% rated power guaranteed at year 25, supported by a low annual degradation rate of approximately 0.6%.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

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-590S 590W Bifacial Monocrystalline Solar Panel

Model SL65-78BGJ-590S | Monocrystalline Bifacial | 156 Half-Cut Cells, 182 x 91 mm | Bifacial | 1500V System Voltage

590 W
Max Power Output
21.1%
Module Efficiency
156
Monocrystalline Cells

Product Overview

The S-Energy SL65-78BGJ-590S bifacial monocrystalline solar panel delivers high power density for utility and commercial sites. This 590W module combines advanced bifacial cell technology with a robust 156 cell layout for reliable long term output. With module efficiency up to 21.1 percent, it is designed to maximize energy yield where roof or ground space is limited. The panel uses 182 x 91 millimeter monocrystalline cells to provide stable performance under varied irradiance conditions. A maximum system voltage of 1500 volts supports modern high voltage string designs and reduces balance of system costs. Its durable anodized aluminium frame and tempered glass front layer ensure strength under heavy snow and high wind loads. The bifacial construction enables additional backside generation when installed over reflective surfaces. Backed by a 12 year product warranty and a 25 year performance warranty, this solar panel is built for long term energy production.

Key Benefits

High power density: A nominal power rating of 590 watts enables more installed capacity using fewer modules on each project.

Bifacial energy gain: Bifacial cell architecture captures light from both sides to increase annual energy yield when installed over bright surfaces.

Strong mechanical design: A tempered glass front and anodized aluminium frame support high snow and wind loads for demanding climates.

Reliable long term performance: A 25 year linear power warranty and low annual degradation safeguard long term energy production for investors and owners.

Flexible system design: The 1500 volt system rating and MC4 compatible connectors simplify string sizing and integration with modern inverters.

How It Works

This S-Energy bifacial monocrystalline solar panel converts sunlight into DC electricity using high efficiency crystalline cells. Light strikes the 182 x 91 millimeter cells on the front side, generating current through the photovoltaic effect within the silicon lattice. The bifacial structure also allows reflected light from the ground or roof to reach the rear side of the cells. This additional light boosts energy yield under suitable mounting conditions with reflective surfaces. The generated direct current flows through the busbars and interconnections toward the junction box. From there, power is delivered along 4 square millimeter DC cables to an inverter for conversion to AC electricity. Once converted, the AC power can be used on site or fed into the grid according to system design. All components operate within a -40 to 85 degree Celsius range to support reliable outdoor deployment.

Front side energy capture: The front glass uses an anti reflection coating to allow more sunlight to reach the monocrystalline cells. The cells then convert this light into electrical current with high efficiency across the 590 watt rated surface.

Rear side bifacial gain: The panel features a transparent rear structure that exposes the backside of the cells. Reflected and diffuse light from the environment hits this rear surface, providing extra generation and improving overall energy yield.

Power delivery and system integration: Current from the bifacial cells is collected by an IP68 junction box with multiple bypass diodes. Standard MC4 compatible connectors and rated cabling then connect the module safely into high voltage strings up to 1500 volts.

Technical Specifications

Brand S-Energy Co., Ltd.
Model Number SL65-78BGJ-590S
Cell Technology Monocrystalline bifacial solar cells
Cell Size 182 x 91 mm
Cell Count and Layout 156 cells, 6 x 26 matrix
Module Type Bifacial monocrystalline PV module
Nominal Power Output (Pmax) 590 Wp front side, STC conditions
Power Range Series 580 Wp to 600 Wp module family
Module Efficiency 21.1% for 590 Wp rating
Voltage at Maximum Power (Vmpp) 45.7 V
Current at Maximum Power (Impp) 12.90 A
Open Circuit Voltage (Voc) 53.9 V
Short Circuit Current (Isc) 13.66 A
Power Tolerance 0 to +1%
Rear Side Power Gain (Example) Approx. 620 Wp at BSTC for 590 Wp type
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
Module Dimensions (H x W x D) 2465 x 1134 x 40 mm
Weight 31 kg
Front Glass Type 3.2 mm tempered glass with anti reflection coating
Rear Material Transparent backsheet mesh design
Frame Material and Color Silver anodized aluminium frame
Junction Box Protection Rating IP68 with 3 bypass diodes
Cable Specification 12 AWG, 4 mm², cable length +1000 mm / -500 mm
Connector Type MC4 compatible connectors

Certifications & Compliance

Certifications: KS C 8561 crystalline silicon photovoltaic module, ISO 9001 Quality Management System, ISO 14001 Environmental Management System, ISO 45001 Occupational Health and Safety Management System.
Inverter Compatibility: Suitable for most modern 1500 V string and central inverters using standard MC4 compatible connections and appropriate voltage design.
Environmental: Designed and tested for outdoor use with -40 to 85 °C temperature range and high resistance to potential induced degradation under 85 °C, 85% relative humidity at up to -1500 V DC.
Warranty: 12 year limited product warranty and 25 year linear performance warranty with 85% rated power guaranteed at year 25, supported by a low annual degradation rate of approximately 0.6%.

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.

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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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