Tesla — US
Tesla T 390W Pro
The Tesla Tesla T 390W Pro is a 390W PERC solar panel with 19.1% efficiency. Made in US. Backed by a 25-year warranty.
Premium Tier🇺🇸 Domestic Content Bonus Eligible
390W
Wattage
19.1%
Efficiency
PERC
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Tesla
- Model
- Tesla T 390W Pro
- Series
- Tesla T
- Wattage
- 390W
- Module Efficiency
- 19.1%
- Cell Type
- PERC
- Dimensions
- 65-67" x 39-40"
- Weight
- 44 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.61
- Est. 7kW System Cost
- $18,270
- Est. 10kW System Cost
- $26,100
- Temperature Coefficient
- -0.35%/°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 |
|---|---|---|---|
| Panasonic HIT 420W D Plus | 420W | 22.3% | $4.08 |
| Panasonic HIT 420W A Ultra | 420W | 22.3% | $4.08 |
| SunPower Maxeon 420W B Silver | 420W | 22.2% | $4.21 |
| Maxeon 3-42 HC | 420W | 22.1% | $3.98 |
Frequently Asked Questions
How much does a 390W Tesla Tesla T 390W Pro cost?
The Tesla Tesla T 390W Pro costs approximately $1018 per panel ($$2.61/W). A typical 7kW system using this panel would cost around $18,270 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 390W Pro a good solar panel?
The Tesla Tesla T 390W Pro has 19.1% efficiency and a 25 years warranty, placing it in the premium tier. This is a solid mid-range panel suitable for most residential installations. It also qualifies for the domestic content bonus under the Inflation Reduction Act.
How many Tesla Tesla T 390W Pro panels do I need?
For a typical 7kW residential system, you'd need approximately 18 panels. For a 10kW system, plan for about 26 panels. The exact number depends on your roof space, energy usage, and local sun hours.