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Model GG1H-72 | Mono PERC | 72 Cells Monocrystalline | Bifacial | 1500V System Voltage
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.
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.
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.
| 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: 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.
● Available | Contact us for lead time and pricing
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