Auxin Solar — US
AXN 355-E Ultra
The Auxin Solar AXN 355-E Ultra is a 355W PERC solar panel with 18.6% efficiency. Made in US. Backed by a 25-year warranty.
Standard Tier🇺🇸 Domestic Content Bonus EligibleBifacial
355W
Wattage
18.6%
Efficiency
PERC
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Auxin Solar
- Model
- AXN 355-E Ultra
- Series
- AXN
- Wattage
- 355W
- Module Efficiency
- 18.6%
- Cell Type
- PERC
- Dimensions
- 65-67" x 39-40"
- Weight
- 40 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.43
- Est. 7kW System Cost
- $17,010
- Est. 10kW System Cost
- $24,300
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- Yes
- Origin
- US
- FEOC Status
- pass
Other Auxin Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| AXN 420W D | 420W | 20.6% | PERC | $3.10 |
| AXN Plus 420W D | 420W | 20.6% | PERC | $3.10 |
| AXN 415W C All-Black | 415W | 20.4% | PERC | $3.03 |
| AXN Plus 415W C All-Black | 415W | 20.4% | PERC | $3.03 |
| AXN 410W E Pro | 410W | 20.3% | PERC | $3.00 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| SunPower Maxeon 385-A Black | 385W | 21% | $3.71 |
| SunPower Maxeon 385W D HC | 385W | 21% | $3.71 |
| SunPower Performance 385-A Black | 385W | 21% | $3.71 |
| SunPower Performance 385W D HC | 385W | 21% | $3.71 |
Frequently Asked Questions
How much does a 355W Auxin Solar AXN 355-E Ultra cost?
The Auxin Solar AXN 355-E Ultra costs approximately $863 per panel ($$2.43/W). A typical 7kW system using this panel would cost around $17,010 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 Auxin Solar AXN 355-E Ultra a good solar panel?
The Auxin Solar AXN 355-E Ultra has 18.6% efficiency and a 25 years warranty, placing it in the standard 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 Auxin Solar AXN 355-E Ultra panels do I need?
For a typical 7kW residential system, you'd need approximately 20 panels. For a 10kW system, plan for about 29 panels. The exact number depends on your roof space, energy usage, and local sun hours.