S-Energy SL65-78BGJ-595S
S-Energy SL65-78BGJ-595S
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SKU  PES-SPS-SOL-16307

S-Energy SL65-78BGJ-595S

S-Energy SL65-78BGJ-595S

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In Stock

Get yours today!

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9+ sold

In the last 7 days

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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-595S 595W Bifacial Monocrystalline Solar Panel

Model SL65-78BGJ-595S | Monocrystalline Bifacial | 156 Half-Cell 182×91 mm | Bifacial | 1500V System Voltage

595 W
Max Power Output
21.3%
Module Efficiency
156
Monocrystalline Cells

Product Overview

The S-Energy SL65-78BGJ-595S bifacial monocrystalline solar panel delivers 595 watts of high-efficiency power for modern commercial and utility projects. This advanced module uses 156 bifacial monocrystalline cells and achieves up to 21.3% front-side efficiency for excellent energy yields in limited space. Its bifacial design enables additional rear-side generation, increasing overall output when installed over bright or reflective surfaces. A robust anodized aluminium frame, tempered glass with anti-reflection coating, and IP68 junction box support reliable operation in harsh outdoor environments. With a 12-year product warranty and a 25-year performance warranty, this panel provides dependable long-term energy production and stable returns on investment.

Key Benefits

High power density: The 595 W output and up to 21.3% efficiency help maximize energy harvest from each square meter of roof or ground space.

Bifacial energy gain: Bifacial cell technology captures light on both sides, which can increase total system yield on reflective or bright surfaces.

Robust mechanical design: The tempered glass, anodized aluminium frame, and high load ratings support reliable performance under snow, wind, and hail conditions.

Stable performance over time: A low 0.6% annual degradation rate and linear performance warranty help maintain strong energy output over 25 years.

Flexible system integration: A maximum system voltage of 1500 V, MC4 connectors, and 4 mm² cables support long strings and simplified system design.

How It Works

The S-Energy SL65-78BGJ-595S bifacial monocrystalline solar panel converts sunlight into direct current power using high-efficiency crystalline cells. Light striking the front glass is absorbed by the monocrystalline cells, which generate electrical current according to the photovoltaic effect. Rear-side glass and a transparent backsheet also enable additional light capture from ground albedo, nearby surfaces, or diffuse sky radiation. The resulting current flows through the integrated busbars, bypass diodes, and IP68 junction box, then exits via MC4-compatible connectors for connection to string inverters or DC optimizers. System designers can combine multiple modules in series and parallel strings while respecting the 1500 V maximum system voltage and 30 A series fuse rating.

Front-side power generation: Under standard test conditions, the module delivers 595 W at a voltage of 46.0 V and current of 12.94 A. The optimized cell layout and low-resistance interconnections help limit power losses and support stable performance in high irradiance environments.

Rear-side bifacial gain: The bifacial architecture enables additional output under BSTC rear-irradiance conditions, where the 595 W module can reach around 625 W. This is achieved by allowing light to reach the rear cell surfaces through the transparent backsheet, increasing total energy generation over the year.

Thermal and electrical stability: The module operates from -40°C to +85°C with a nominal operating cell temperature of 45±2°C. Temperature coefficients of -0.35%/°C for Pmax and -0.27%/°C for Voc limit performance losses on hot days, while a positive 0.04%/°C coefficient for Isc supports consistent current production.

Technical Specifications

Brand S-Energy Co., Ltd.
Model Number SL65-78BGJ-595S
Cell Technology Monocrystalline bifacial silicon
Cell Size 182 × 91 mm
Number of Cells 156 cells (6 × 26 matrix)
Module Technology Bifacial glass–backsheet module
Maximum Power (Pmax) 595 Wp (STC)
Power Range 580 ~ 600 Wp product series
Module Efficiency 21.3% (20.7% ~ 21.5% series range)
Voltage at Pmax (Vmpp) 46.0 V
Current at Pmax (Impp) 12.94 A
Open Circuit Voltage (Voc) 54.1 V
Short Circuit Current (Isc) 13.69 A
Power Tolerance 0 ~ +1% at module level
Rear-Side Pmax (BSTC example) Approx. 625 W under 5% rear gain condition
Operating Temperature Range -40°C to +85°C
Nominal Operating Cell Temperature (NOCT) 45 ± 2°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
Series Fuse Rating 30 A
Panel Dimensions (H × W × D) 2465 × 1134 × 40 mm
Weight 31 kg
Front Glass Type 3.2 mm tempered glass with anti-reflection coating
Backsheet Type Transparent backsheet (mesh)
Frame Material Anodized aluminium, silver finish
Junction Box IP68 with 3 bypass diodes
Connector Type MC4 compatible
Cable Cross Section 4 mm² (approx. 12 AWG)
Cable Length (+ ) 1000 mm / (–) 500 mm
Mechanical Load Rating Snow load 5400 Pa / wind load 2400 Pa

Certifications & Compliance

Certifications: KS C 8561 crystalline silicon PV module certification; ISO 9001 Quality Management System; ISO 14001 Environmental Management System; ISO 45001 Occupational Health & Safety Management System; PID resistance tested at 85°C, 85% RH, -1500 VDC for 192 hours.
Inverter Compatibility: Suitable for modern string and central inverters that accept 1500 V DC systems and MC4 terminations, subject to final design checks by the system designer or EPC contractor.
Environmental: Designed for harsh outdoor conditions with high load ratings, UV-resistant materials, and salt-mist-ready construction when installed to manufacturer guidelines.
Warranty: 12-year product workmanship warranty and 25-year linear power warranty, with a total degradation rate targeting 85% of initial power at year 25 and a typical annual degradation rate of around 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-595S 595W Bifacial Monocrystalline Solar Panel

Model SL65-78BGJ-595S | Monocrystalline Bifacial | 156 Half-Cell 182×91 mm | Bifacial | 1500V System Voltage

595 W
Max Power Output
21.3%
Module Efficiency
156
Monocrystalline Cells

Product Overview

The S-Energy SL65-78BGJ-595S bifacial monocrystalline solar panel delivers 595 watts of high-efficiency power for modern commercial and utility projects. This advanced module uses 156 bifacial monocrystalline cells and achieves up to 21.3% front-side efficiency for excellent energy yields in limited space. Its bifacial design enables additional rear-side generation, increasing overall output when installed over bright or reflective surfaces. A robust anodized aluminium frame, tempered glass with anti-reflection coating, and IP68 junction box support reliable operation in harsh outdoor environments. With a 12-year product warranty and a 25-year performance warranty, this panel provides dependable long-term energy production and stable returns on investment.

Key Benefits

High power density: The 595 W output and up to 21.3% efficiency help maximize energy harvest from each square meter of roof or ground space.

Bifacial energy gain: Bifacial cell technology captures light on both sides, which can increase total system yield on reflective or bright surfaces.

Robust mechanical design: The tempered glass, anodized aluminium frame, and high load ratings support reliable performance under snow, wind, and hail conditions.

Stable performance over time: A low 0.6% annual degradation rate and linear performance warranty help maintain strong energy output over 25 years.

Flexible system integration: A maximum system voltage of 1500 V, MC4 connectors, and 4 mm² cables support long strings and simplified system design.

How It Works

The S-Energy SL65-78BGJ-595S bifacial monocrystalline solar panel converts sunlight into direct current power using high-efficiency crystalline cells. Light striking the front glass is absorbed by the monocrystalline cells, which generate electrical current according to the photovoltaic effect. Rear-side glass and a transparent backsheet also enable additional light capture from ground albedo, nearby surfaces, or diffuse sky radiation. The resulting current flows through the integrated busbars, bypass diodes, and IP68 junction box, then exits via MC4-compatible connectors for connection to string inverters or DC optimizers. System designers can combine multiple modules in series and parallel strings while respecting the 1500 V maximum system voltage and 30 A series fuse rating.

Front-side power generation: Under standard test conditions, the module delivers 595 W at a voltage of 46.0 V and current of 12.94 A. The optimized cell layout and low-resistance interconnections help limit power losses and support stable performance in high irradiance environments.

Rear-side bifacial gain: The bifacial architecture enables additional output under BSTC rear-irradiance conditions, where the 595 W module can reach around 625 W. This is achieved by allowing light to reach the rear cell surfaces through the transparent backsheet, increasing total energy generation over the year.

Thermal and electrical stability: The module operates from -40°C to +85°C with a nominal operating cell temperature of 45±2°C. Temperature coefficients of -0.35%/°C for Pmax and -0.27%/°C for Voc limit performance losses on hot days, while a positive 0.04%/°C coefficient for Isc supports consistent current production.

Technical Specifications

Brand S-Energy Co., Ltd.
Model Number SL65-78BGJ-595S
Cell Technology Monocrystalline bifacial silicon
Cell Size 182 × 91 mm
Number of Cells 156 cells (6 × 26 matrix)
Module Technology Bifacial glass–backsheet module
Maximum Power (Pmax) 595 Wp (STC)
Power Range 580 ~ 600 Wp product series
Module Efficiency 21.3% (20.7% ~ 21.5% series range)
Voltage at Pmax (Vmpp) 46.0 V
Current at Pmax (Impp) 12.94 A
Open Circuit Voltage (Voc) 54.1 V
Short Circuit Current (Isc) 13.69 A
Power Tolerance 0 ~ +1% at module level
Rear-Side Pmax (BSTC example) Approx. 625 W under 5% rear gain condition
Operating Temperature Range -40°C to +85°C
Nominal Operating Cell Temperature (NOCT) 45 ± 2°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
Series Fuse Rating 30 A
Panel Dimensions (H × W × D) 2465 × 1134 × 40 mm
Weight 31 kg
Front Glass Type 3.2 mm tempered glass with anti-reflection coating
Backsheet Type Transparent backsheet (mesh)
Frame Material Anodized aluminium, silver finish
Junction Box IP68 with 3 bypass diodes
Connector Type MC4 compatible
Cable Cross Section 4 mm² (approx. 12 AWG)
Cable Length (+ ) 1000 mm / (–) 500 mm
Mechanical Load Rating Snow load 5400 Pa / wind load 2400 Pa

Certifications & Compliance

Certifications: KS C 8561 crystalline silicon PV module certification; ISO 9001 Quality Management System; ISO 14001 Environmental Management System; ISO 45001 Occupational Health & Safety Management System; PID resistance tested at 85°C, 85% RH, -1500 VDC for 192 hours.
Inverter Compatibility: Suitable for modern string and central inverters that accept 1500 V DC systems and MC4 terminations, subject to final design checks by the system designer or EPC contractor.
Environmental: Designed for harsh outdoor conditions with high load ratings, UV-resistant materials, and salt-mist-ready construction when installed to manufacturer guidelines.
Warranty: 12-year product workmanship warranty and 25-year linear power warranty, with a total degradation rate targeting 85% of initial power at year 25 and a typical annual degradation rate of around 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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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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