Trina Solar — China
Tallmax 430W B
The Trina Solar Tallmax 430W B is a 430W N-Type TOPCon solar panel with 20.5% efficiency. Backed by a 25-year warranty.
Standard TierFEOC: Restricted
430W
Wattage
20.5%
Efficiency
N-Type TOPCon
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Trina Solar
- Model
- Tallmax 430W B
- Series
- Tallmax
- Wattage
- 430W
- Module Efficiency
- 20.5%
- Cell Type
- N-Type TOPCon
- Dimensions
- 66-80" x 39-41"
- Weight
- 49 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.20
- Est. 7kW System Cost
- $15,400
- Est. 10kW System Cost
- $22,000
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- No
- Origin
- China
- FEOC Status
- fail
Other Trina Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| Vertex 490W D | 490W | 22.8% | N-Type TOPCon | $2.81 |
| Honey 490W D | 490W | 22.8% | N-Type TOPCon | $2.81 |
| Tallmax 490W D | 490W | 22.8% | N-Type TOPCon | $2.81 |
| SolaX 490W D | 490W | 22.8% | N-Type TOPCon | $2.81 |
| Vertex S+ 490W D | 490W | 22.8% | N-Type TOPCon | $2.81 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Maxeon Maxeon 3 455W E Pro | 455W | 23.5% | $4.72 |
| Maxeon Maxeon 6 455W E Pro | 455W | 23.5% | $4.72 |
| Maxeon Maxeon 7 455W E Pro | 455W | 23.5% | $4.72 |
| Maxeon Maxeon Air 455W E Pro | 455W | 23.5% | $4.72 |
Frequently Asked Questions
How much does a 430W Trina Solar Tallmax 430W B cost?
The Trina Solar Tallmax 430W B costs approximately $946 per panel ($$2.20/W). A typical 7kW system using this panel would cost around $15,400 before incentives.
⚠ The 30% Federal Solar Tax Credit (48E/ITC) expired July 4, 2026.
Selecting 30% ITC assumes you began construction before this deadline. Most new purchases no longer qualify.Learn about your options after the deadline →
Is the Trina Solar Tallmax 430W B a good solar panel?
The Trina Solar Tallmax 430W B has 20.5% efficiency and a 25 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many Trina Solar Tallmax 430W B panels do I need?
For a typical 7kW residential system, you'd need approximately 17 panels. For a 10kW system, plan for about 24 panels. The exact number depends on your roof space, energy usage, and local sun hours.