Product Description

Trina Solar Vertex S+ TSM-NEG9RC.27 is a premium N-type i-TOPCon bifacial dual glass monocrystalline solar module designed for residential rooftops, commercial and industrial (C&I) photovoltaic systems, and distributed solar energy applications. Featuring advanced 210mm silicon wafer technology, i-TOPCon cell architecture, and multi-busbar (MBB) technology, this module delivers a power range from 425W to 450W with a maximum module efficiency of 22.5%.

The Vertex S+ NEG9RC.27 combines high power generation capability with a compact rooftop-friendly design. With dimensions of 1762 × 1134 × 30mm and a lightweight structure of approximately 21kg, the module provides excellent compatibility with mainstream residential inverters, mounting systems, and rooftop installation solutions.

Equipped with a bifacial dual glass structure, the module replaces traditional backsheet materials with a durable glass rear layer, improving mechanical strength, moisture resistance, fire performance, and long-term reliability. The bifacial design enables additional energy generation from rear-side reflected sunlight, helping increase overall photovoltaic system output.

With advanced N-type TOPCon technology, ultra-low degradation characteristics, and a 30-year power warranty, Trina Solar Vertex S+ provides reliable long-term energy production for homeowners, solar installers, and commercial PV developers seeking higher efficiency and better lifetime returns.

Product Features

1. High Power Output up to 450W

Trina Solar Vertex S+ TSM-NEG9RC.27 delivers excellent energy generation performance in a compact module format.

Key Performance:

• Maximum power output: 450W
• Power range: 425W-450W
• Maximum module efficiency: 22.5%
• Cell technology: N-type i-TOPCon
• Cell configuration: 144 cells
• Power tolerance: 0~+5W

The high power density design helps:

• Increase electricity generation per rooftop area
• Reduce the number of modules required
• Optimize installation costs
• Improve overall photovoltaic system efficiency

2. Advanced N-Type i-TOPCon Solar Cell Technology

The Vertex S+ NEG9RC.27 adopts Trina Solar’s advanced N-type i-TOPCon cell technology, delivering higher efficiency and better reliability compared with traditional P-type solar modules.

Advantages of N-type TOPCon Technology:

• Higher conversion efficiency
• Lower light-induced degradation (LID)
• Better temperature performance
• Improved low-light energy generation
• Higher lifetime power output

The optimized cell structure reduces electrical losses while improving long-term module stability.

3. Bifacial Dual Glass Design for Enhanced Durability

The Vertex S+ series features a bifacial dual glass solar module structure, providing improved protection and reliability compared with conventional backsheet modules.

Dual Glass Advantages:

• Excellent resistance against moisture penetration
• Better protection against micro-cracks
• Improved fire resistance
• Enhanced weather durability
• Longer service life in harsh environments

The transparent rear glass allows the module to capture additional sunlight from the backside, creating extra energy yield depending on installation conditions and ground reflectivity.

4. High Energy Yield Performance

Trina Vertex S+ NEG9RC.27 is optimized for real-world operating environments.

Performance advantages:

• Excellent low irradiation performance
• Improved energy generation during cloudy conditions
• Lower operating temperature
• Higher bifacial energy gain

Key parameters:

• Temperature coefficient of Pmax: -0.29%/℃
• Bifaciality factor: 80 ±5%

Additional rear-side power gain: up to 10%-20% depending on albedo conditions

5. Compact Design for Residential & Commercial Rooftops

Unlike large utility-scale modules, Vertex S+ is optimized for distributed solar applications.

Design advantages:

• Compact 1762mm × 1134mm size
• Lightweight 21kg structure
• Easy transportation and installation
• Compatible with mainstream rooftop mounting systems
• Suitable for limited rooftop spaces

Ideal for:

• Residential solar systems
• Villas and houses
• Commercial buildings
• Industrial rooftops
• Solar carports

6. Superior Reliability in Harsh Environments

The Vertex S+ module is engineered for long-term outdoor operation.

Certified resistance against:

• Salt mist corrosion
• Ammonia exposure
• Sand and dust
• Potential induced degradation (PID)

Mechanical load capability:

• Front side load: 5400 Pa
• Rear side load: 4000 Pa

Suitable for:

• Coastal regions
• High humidity areas
• Industrial environments
• Extreme weather conditions

7. Long-Term Warranty & Low Degradation

Trina Solar provides strong lifecycle performance protection:

• Warranty:
• Product warranty: 15 years
• Power warranty: 30 years
• First-year degradation: 1%
• Annual degradation: 0.4%
• Guaranteed output after 30 years: 87.4%

This ensures stable energy generation and improved return on investment throughout the solar system lifecycle.

Technical Specifications

Electrical Characteristics (STC)

Mechanical Specifications

Operating Conditions