Guorun Energy 505
Guorun Energy 505
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SKU  PES-SPS-SOL-7507

Guorun Energy 505

Guorun Energy 505

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

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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

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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.

Guorun Energy 505 HJT Bifacial Monocrystalline Solar Panel

Model 505 | HJT Bifacial | 108 Monocrystalline Cells | Bifacial | 1500 V System Voltage

505 Wp
Max Power Output
22.72 %
Module Efficiency
108
N-Type TOPCon

Product Overview

The Guorun Energy 505 HJT Bifacial Monocrystalline Solar Panel delivers high output and advanced cell technology for demanding projects. With a maximum power rating of 505 Wp, this module suits commercial rooftops, industrial sites, and high performance residential systems. Its bifacial HJT design allows energy capture from both sides, increasing yield on reflective surfaces. High module efficiency up to 22.72 percent helps more power fit into limited roof or ground space. The panel is engineered around 108 monocrystalline cells and a robust anodized aluminium frame. An anti reflection coated glass front improves light absorption and optimises daily production. The panel operates across a wide temperature range and supports system voltages up to 1500 V. Guorun Energy Group Co., Ltd. manufactures this module in China with a focus on durability and stable long term output. A 15 year product warranty and 30 year power warranty provide extended protection and predictable performance. The result is a resilient solar panel that supports reliable clean energy generation for decades.

Key Benefits

High power density: The 505 Wp output and up to 22.72 percent efficiency allow strong production from compact array areas.

Bifacial HJT technology: Energy is harvested from direct sunlight and reflected light, boosting yield on suitable surfaces and trackers.

Superior long term performance: A 30 year power warranty with only 0.32 percent annual degradation supports stable lifetime generation.

Robust mechanical design: Anodized aluminium frame, IP68 junction box, and 2 mm glass support reliable outdoor operation in harsh climates.

Flexible system integration: A 1500 V system voltage rating, MC4 connectors, and 4 mm² cables simplify string design and installation.

Reliable warranties: The 15 year product warranty and long power warranty provide strong assurance for investors and owners.

How It Works

This Guorun Energy 505 HJT bifacial monocrystalline solar panel converts sunlight into clean direct current electricity. Its high efficiency cells capture light across the day, even under changing temperatures and irradiance. The bifacial structure allows the rear side to use reflected and diffuse light from the ground or roof. Generated current flows through the panel busbars into the junction box and MC4 connectors. From there, cabling links the modules into strings sized to the 1500 V system rating. An inverter then converts the direct current output into alternating current for site loads or export. Throughout this process, engineered temperature coefficients help maintain performance under heat. The durable frame, glass, and IP68 rated junction box protect the internal components from weather and moisture. Together these features support efficient long term solar energy production with minimal operator input.

Bifacial HJT energy capture: The heterojunction cells are designed to respond efficiently to a wide light spectrum from both sides. The rear surface harvests albedo from bright roofs, concrete, snow, or ground coverings, increasing annual output.

Optimised electrical performance: At maximum power, the panel delivers 505 Wp at 34.4 V and 14.64 A under standard conditions. Tight power tolerance from zero to plus one percent helps assure that delivered modules meet or exceed nameplate.

Thermal and environmental resilience: The module operates between minus forty and eighty five degrees Celsius for broad climate compatibility. Low temperature coefficients and a nominal operating temperature around forty five degrees Celsius manage heat impact on output.

Technical Specifications

Brand Guorun Energy Group Co., Ltd.
Model Number 505
Cell Technology Bifacial HJT monocrystalline
Cell Count and Type 108 monocrystalline cells
Module Type Monocrystalline bifacial solar panel
Power Range 505 to 525 Wp
Maximum Power (Pmax) 505 Wp
Module Efficiency Range 22.72 to 23.62 %
Voltage at Maximum Power (Vmpp) 34.4 V
Current at Maximum Power (Impp) 14.64 A
Open Circuit Voltage (Voc) 41.84 V
Short Circuit Current (Isc) 15.46 A
Power Tolerance 0 to +1 %
Total Degradation Rate 0.32 % per year over 30 years
Nominal Module Temperature 45 ± 2 °C
Operating Temperature Range -40 to 85 °C
Temperature Coefficient of Pmax -0.24 % / °C
Temperature Coefficient of Voc -0.24 % / °C
Temperature Coefficient of Isc 0.04 % / °C
Maximum System Voltage 1500 V
Series Fuse Rating 30 A
Panel Dimensions (H × W × D) 1960 × 1134 × 30 mm
Weight 27.6 kg
Glass Type Anti reflection coating glass
Glass Thickness 2 mm
Frame Material Anodized aluminium frame
Junction Box Protection Class IP68 rated junction box
Connector Type MC4 compatible connectors
Cable Cross Section 4 mm²
Cable Length 300 mm
Country of Origin China

Certifications & Compliance

Certifications: Designed to meet common international IEC standards for crystalline bifacial modules, local certification details available on request.
Inverter Compatibility: Compatible with most modern string and central inverters rated for 1500 V DC systems.
Environmental: Built for outdoor use with IP68 junction box and wide temperature operation from -40 to 85 °C.
Warranty: 15 year product warranty and 30 year linear power warranty with approximately 90.3 % output retained.

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.

Guorun Energy 505 HJT Bifacial Monocrystalline Solar Panel

Model 505 | HJT Bifacial | 108 Monocrystalline Cells | Bifacial | 1500 V System Voltage

505 Wp
Max Power Output
22.72 %
Module Efficiency
108
N-Type TOPCon

Product Overview

The Guorun Energy 505 HJT Bifacial Monocrystalline Solar Panel delivers high output and advanced cell technology for demanding projects. With a maximum power rating of 505 Wp, this module suits commercial rooftops, industrial sites, and high performance residential systems. Its bifacial HJT design allows energy capture from both sides, increasing yield on reflective surfaces. High module efficiency up to 22.72 percent helps more power fit into limited roof or ground space. The panel is engineered around 108 monocrystalline cells and a robust anodized aluminium frame. An anti reflection coated glass front improves light absorption and optimises daily production. The panel operates across a wide temperature range and supports system voltages up to 1500 V. Guorun Energy Group Co., Ltd. manufactures this module in China with a focus on durability and stable long term output. A 15 year product warranty and 30 year power warranty provide extended protection and predictable performance. The result is a resilient solar panel that supports reliable clean energy generation for decades.

Key Benefits

High power density: The 505 Wp output and up to 22.72 percent efficiency allow strong production from compact array areas.

Bifacial HJT technology: Energy is harvested from direct sunlight and reflected light, boosting yield on suitable surfaces and trackers.

Superior long term performance: A 30 year power warranty with only 0.32 percent annual degradation supports stable lifetime generation.

Robust mechanical design: Anodized aluminium frame, IP68 junction box, and 2 mm glass support reliable outdoor operation in harsh climates.

Flexible system integration: A 1500 V system voltage rating, MC4 connectors, and 4 mm² cables simplify string design and installation.

Reliable warranties: The 15 year product warranty and long power warranty provide strong assurance for investors and owners.

How It Works

This Guorun Energy 505 HJT bifacial monocrystalline solar panel converts sunlight into clean direct current electricity. Its high efficiency cells capture light across the day, even under changing temperatures and irradiance. The bifacial structure allows the rear side to use reflected and diffuse light from the ground or roof. Generated current flows through the panel busbars into the junction box and MC4 connectors. From there, cabling links the modules into strings sized to the 1500 V system rating. An inverter then converts the direct current output into alternating current for site loads or export. Throughout this process, engineered temperature coefficients help maintain performance under heat. The durable frame, glass, and IP68 rated junction box protect the internal components from weather and moisture. Together these features support efficient long term solar energy production with minimal operator input.

Bifacial HJT energy capture: The heterojunction cells are designed to respond efficiently to a wide light spectrum from both sides. The rear surface harvests albedo from bright roofs, concrete, snow, or ground coverings, increasing annual output.

Optimised electrical performance: At maximum power, the panel delivers 505 Wp at 34.4 V and 14.64 A under standard conditions. Tight power tolerance from zero to plus one percent helps assure that delivered modules meet or exceed nameplate.

Thermal and environmental resilience: The module operates between minus forty and eighty five degrees Celsius for broad climate compatibility. Low temperature coefficients and a nominal operating temperature around forty five degrees Celsius manage heat impact on output.

Technical Specifications

Brand Guorun Energy Group Co., Ltd.
Model Number 505
Cell Technology Bifacial HJT monocrystalline
Cell Count and Type 108 monocrystalline cells
Module Type Monocrystalline bifacial solar panel
Power Range 505 to 525 Wp
Maximum Power (Pmax) 505 Wp
Module Efficiency Range 22.72 to 23.62 %
Voltage at Maximum Power (Vmpp) 34.4 V
Current at Maximum Power (Impp) 14.64 A
Open Circuit Voltage (Voc) 41.84 V
Short Circuit Current (Isc) 15.46 A
Power Tolerance 0 to +1 %
Total Degradation Rate 0.32 % per year over 30 years
Nominal Module Temperature 45 ± 2 °C
Operating Temperature Range -40 to 85 °C
Temperature Coefficient of Pmax -0.24 % / °C
Temperature Coefficient of Voc -0.24 % / °C
Temperature Coefficient of Isc 0.04 % / °C
Maximum System Voltage 1500 V
Series Fuse Rating 30 A
Panel Dimensions (H × W × D) 1960 × 1134 × 30 mm
Weight 27.6 kg
Glass Type Anti reflection coating glass
Glass Thickness 2 mm
Frame Material Anodized aluminium frame
Junction Box Protection Class IP68 rated junction box
Connector Type MC4 compatible connectors
Cable Cross Section 4 mm²
Cable Length 300 mm
Country of Origin China

Certifications & Compliance

Certifications: Designed to meet common international IEC standards for crystalline bifacial modules, local certification details available on request.
Inverter Compatibility: Compatible with most modern string and central inverters rated for 1500 V DC systems.
Environmental: Built for outdoor use with IP68 junction box and wide temperature operation from -40 to 85 °C.
Warranty: 15 year product warranty and 30 year linear power warranty with approximately 90.3 % output retained.

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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