GTC Trade 445W
GTC Trade 445W
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SKU  PES-SPS-SOL-6396

GTC Trade 445W

GTC Trade 445W

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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Power Rating 445W

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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.

GTC GG1H-72 445W PERC Bifacial Monocrystalline Solar Panel

Model GG1H-72 | Mono PERC | 72 Cells Monocrystalline | Bifacial | 1500V System Voltage

445 W
Max Power Output
20.71 %
Module Efficiency
72 Cells
Mono PERC Bifacial

Product Overview

The GTC GG1H-72 445W PERC bifacial monocrystalline solar panel is engineered for high yield and long life. This advanced dual glass module delivers up to 445 watts from the front side under standard test conditions. Its bifacial design can boost total energy output by up to thirty percent, depending on ground reflectivity. Module efficiency reaches up to 20.71 percent, which supports strong production even on space constrained sites. The robust double glass portable frame is optimized for harsh climates and demanding commercial projects. It withstands salt mist, dust and snow while maintaining stable performance over decades. The panel integrates seamlessly into carports, rooftops, ground mounts, trackers and floating systems. With a 12 year product warranty and guaranteed 84 percent power output after 30 years, it offers reliable lifetime value. This solar panel has been developed and manufactured in Turkey by GTC Güneş Sanayi ve Ticaret A.Ş. It is an excellent choice for investors who need bankable performance and low levelized cost of energy.

Key Benefits

High power density: The module delivers up to 445 watts on the front side with up to 20.71 percent efficiency. This level of output helps reduce required array area and balance of system costs.

Bifacial energy gain: The dual glass bifacial design generates energy from both sides of the panel. Backside production can increase total yield by up to thirty percent on reflective surfaces.

Long term reliability: Six times durability technology and robust glass glass construction are used in the design. The module is certified as 100 percent PID free and fire safe Class AA for added security.

Optimized for hot climates: The panel offers better performance in hot environments thanks to low temperature coefficients. Stable output is maintained even when cell temperatures rise well above 25 degrees Celsius.

Flexible installation options: The lightweight yet robust portable frame simplifies handling and mounting. It is ideal for carports, rooftops, fixed ground arrays, trackers, floating systems and sun breaker applications.

Lower LCOE and O&M costs: High bifacial yield, long service life and self cleaning behavior help reduce levelized cost of energy. Reduced dust and snow collection support lower maintenance requirements over the project lifetime.

How It Works

This GTC bifacial mono PERC solar panel converts sunlight into electricity using high efficiency monocrystalline cells. Each cell uses passivated emitter rear contact technology to capture more light and reduce recombination losses. The module is built as a dual glass construction, which protects the cells and allows light to reach both sides. When the sun hits the front surface, direct radiation is converted into DC power at up to 445 watts under standard test conditions. At the same time, the rear side collects reflected and diffused light from the ground and surroundings. This additional input raises total energy yield without increasing the footprint of the array. The panel connects into strings operating up to 1500 volts, which reduces current and system losses. During operation, the module continues to produce energy across a wide temperature range from minus forty to plus eighty five degrees Celsius. Performance is stabilized by low temperature coefficients, high quality encapsulation and a sealed IP67 junction box. Together, these features support reliable production for decades in residential, commercial and utility scale projects.

Bifacial dual glass architecture: The module uses glass on both the front and rear sides to protect the cells. Light that reaches the rear surface is captured through the bifacial mono PERC cells and converted into extra power. This effect is strongest on bright and reflective surfaces with high albedo values.

High efficiency mono PERC cells: Monocrystalline cells with passivated rear contacts are used to maximize conversion efficiency. They deliver up to 20.71 percent efficiency at the module level under standard test conditions. This advanced cell design also improves low light performance during mornings, evenings and cloudy days.

System integration and string design: The panel supports system voltages up to 1500 volts, which enables longer strings and lower cabling costs. MC4 compatible connectors and three diode junction box design support safe and reliable operation. The portable frame structure assists installers during transport, lifting and alignment on racking systems.

Technical Specifications

Brand GTC Güneş Sanayi ve Ticaret A.Ş.
Country of Origin Turkey
Module Type Monocrystalline, bifacial, dual glass
Cell Technology Mono PERC bifacial
Cell Count and Layout 72 monocrystalline cells
Power Range (Front Side STC) 435 Wp to 450 Wp
Nominal Maximum Power (STC) 445 Wp
Module Efficiency (Range) 20.02 % to 20.71 %
Module Efficiency (445 W) 20.48 %
Power Tolerance -3 % to +3 %
Voltage at Maximum Power Vmpp (445 W) 41.61 V (STC)
Current at Maximum Power Impp (445 W) 10.72 A (STC)
Open Circuit Voltage Voc (445 W) 48.83 V (STC)
Short Circuit Current Isc (445 W) 11.26 A (STC)
Maximum Power at NOCT (445 W) 359 Wp
Voltage at Maximum Power Vmpp (NOCT, 445 W) 39.62 V
Current at Maximum Power Impp (NOCT, 445 W) 9.07 A
Open Circuit Voltage Voc (NOCT, 445 W) 46.40 V
Short Circuit Current Isc (NOCT, 445 W) 9.38 A
Bifacial Power Boost (Typical) Up to 30 % depending on albedo and installation
Maximum System Voltage 1500 V DC
Series Fuse Rating 20 A
Nominal Operating Temperature 46 °C
Operating Temperature Range -40 °C to +85 °C
Temperature Coefficient of Pmax -0.38 % / °C
Temperature Coefficient of Voc -0.29 % / °C
Temperature Coefficient of Isc +0.04 % / °C
Total Degradation Rate 0.53 % per year (linear approximation)
Front Side Glass Type Tempered glass with anti reflection coating
Encapsulant EVA (ethylene vinyl acetate)
Junction Box Protection Class IP67, three bypass diodes
Connector Type MC4 compatible
Panel Dimensions (H × W × D) 2079 × 1045 × 6 mm
Weight 31.5 kg

Certifications & Compliance

Certifications: IEC 61215, IEC 61730-1, IEC 61730-2, extended IEC tests DH6000, HF60, TC1200, TSE EN 61701 Salt Mist Corrosion Test Severity 6, ISO 9001:2015, ISO 14001:2015, OHSAS 18001:2007.
Inverter Compatibility: Suitable for modern string and central inverters rated up to 1500 V DC input, including grid tied and hybrid systems following regional standards.
Environmental: Designed for harsh outdoor conditions including salt mist, dust and snow loads, with glass glass construction and IP67 junction box for high environmental resilience.
Warranty: 12 year product warranty and linear power warranty with 95 % power after 10 years and 84 % guaranteed output at year 30, based on a total degradation rate of around 0.53 percent per year.

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.

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.

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