Trina Solar — China
Tallmax 490W D
The Trina Solar Tallmax 490W D is a 490W N-Type TOPCon solar panel with 22.8% efficiency. Backed by a 30-year warranty.
Standard TierFEOC: RestrictedBifacial
490W
Wattage
22.8%
Efficiency
N-Type TOPCon
Cell Type
30 years
Warranty
Full Specifications
- Brand
- Trina Solar
- Model
- Tallmax 490W D
- Series
- Tallmax
- Wattage
- 490W
- Module Efficiency
- 22.8%
- Cell Type
- N-Type TOPCon
- Dimensions
- 78-82" x 39-41"
- Weight
- 57 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $2.81
- Est. 7kW System Cost
- $19,670
- Est. 10kW System Cost
- $28,100
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- Yes
- 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 |
| SolaX 490W D | 490W | 22.8% | N-Type TOPCon | $2.81 |
| Vertex S+ 490W D | 490W | 22.8% | N-Type TOPCon | $2.81 |
| Vertex 485W C All-Black | 485W | 22.6% | PERC | $2.76 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Aiko Solar Navi 490W D | 490W | 23.2% | $2.70 |
| Aiko Solar Neostar 490W D | 490W | 23.2% | $2.70 |
| Aiko Solar Navi 485W C All-Black | 485W | 23% | $2.64 |
| Aiko Solar Neostar 485W C All-Black | 485W | 23% | $2.64 |
Frequently Asked Questions
How much does a 490W Trina Solar Tallmax 490W D cost?
The Trina Solar Tallmax 490W D costs approximately $1377 per panel ($$2.81/W). A typical 7kW system using this panel would cost around $19,670 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 490W D a good solar panel?
The Trina Solar Tallmax 490W D has 22.8% efficiency and a 30 years warranty, placing it in the standard tier. This is above-average efficiency, making it a strong choice.
How many Trina Solar Tallmax 490W D panels do I need?
For a typical 7kW residential system, you'd need approximately 15 panels. For a 10kW system, plan for about 21 panels. The exact number depends on your roof space, energy usage, and local sun hours.