Tesla — US
Tesla T 440W D Silver
The Tesla Tesla T 440W D Silver is a 440W N-Type TOPCon solar panel with 21.0% efficiency. Made in US. Backed by a 30-year warranty.
Premium Tier🇺🇸 Domestic Content Bonus Eligible
440W
Wattage
21%
Efficiency
N-Type TOPCon
Cell Type
30 years
Warranty
Full Specifications
- Brand
- Tesla
- Model
- Tesla T 440W D Silver
- Series
- Tesla T
- Wattage
- 440W
- Module Efficiency
- 21%
- Cell Type
- N-Type TOPCon
- Dimensions
- 78-82" x 39-41"
- Weight
- 52 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $3.50
- Est. 7kW System Cost
- $24,500
- Est. 10kW System Cost
- $35,000
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- No
- Origin
- US
- FEOC Status
- pass
Other Tesla Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| Tesla T 455W E Pro | 455W | 21.6% | N-Type TOPCon | $3.78 |
| Tesla T 450W D Plus | 450W | 21.4% | PERC | $3.69 |
| Tesla T 445W C | 445W | 21.2% | N-Type TOPCon | $3.59 |
| Tesla T 445W A Ultra | 445W | 21.2% | PERC | $3.59 |
| Tesla T 440W E Max | 440W | 21% | N-Type TOPCon | $3.50 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Maxeon 3 455W E Pro | 455W | 23.5% | $4.72 |
| SunPower Maxeon 455W E Pro | 455W | 23.4% | $4.71 |
| Maxeon 3 450W D Plus | 450W | 23.3% | $4.61 |
| SunPower Maxeon 445W D Plus | 445W | 23.1% | $4.58 |
Frequently Asked Questions
How much does a 440W Tesla Tesla T 440W D Silver cost?
The Tesla Tesla T 440W D Silver costs approximately $1540 per panel ($$3.50/W). A typical 7kW system using this panel would cost around $24,500 before incentives.
⚠ The 30% federal solar tax credit has ended — Section 25D expired December 31, 2025, and the Section 48E construction-start deadline passed 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 Tesla Tesla T 440W D Silver a good solar panel?
The Tesla Tesla T 440W D Silver has 21% efficiency and a 30 years warranty, placing it in the premium tier. This is above-average efficiency, making it a strong choice. It also qualifies for the domestic content bonus under the Inflation Reduction Act.
How many Tesla Tesla T 440W D Silver panels do I need?
For a typical 7kW residential system, you'd need approximately 16 panels. For a 10kW system, plan for about 23 panels. The exact number depends on your roof space, energy usage, and local sun hours.