SunPower — US
Maxeon 445W D Plus
The SunPower Maxeon 445W D Plus is a 445W IBC solar panel with 23.1% efficiency. Made in US. Backed by a 30-year warranty.
Discontinued panel — still supported for existing owners. SunPower ceased operations (Chapter 11 bankruptcy, August 2024) Specs below reflect the final production version.
Premium Tier🇺🇸 Domestic Content Bonus Eligible
445W
Wattage
23.1%
Efficiency
IBC
Cell Type
30 years
Warranty
Full Specifications
- Brand
- SunPower
- Model
- Maxeon 445W D Plus
- Series
- Maxeon
- Wattage
- 445W
- Module Efficiency
- 23.1%
- Cell Type
- IBC
- Dimensions
- 78-82" x 39-41"
- Weight
- 52 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $4.58
- Est. 7kW System Cost
- $32,060
- Est. 10kW System Cost
- $45,800
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- No
- Origin
- US
- FEOC Status
- pass
Other SunPower Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| Maxeon 455W E Pro | 455W | 23.4% | IBC | $4.71 |
| Maxeon 440W C | 440W | 22.9% | IBC | $4.50 |
| Maxeon 435W A Ultra | 435W | 22.7% | IBC | $4.42 |
| Maxeon 430W E Max | 430W | 22.6% | IBC | $4.38 |
| Maxeon 430W C Black | 430W | 22.6% | IBC | $4.38 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Maxeon 3 455W E Pro | 455W | 23.5% | $4.72 |
| Maxeon 3 450W D Plus | 450W | 23.3% | $4.61 |
| Maxeon 3 445W A Ultra | 445W | 23.1% | $4.51 |
| REC Alpha 455W E Pro | 455W | 23% | $3.84 |
Frequently Asked Questions
How much does a 445W SunPower Maxeon 445W D Plus cost?
The SunPower Maxeon 445W D Plus costs approximately $2038 per panel ($$4.58/W). A typical 7kW system using this panel would cost around $32,060 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 SunPower Maxeon 445W D Plus a good solar panel?
The SunPower Maxeon 445W D Plus has 23.1% 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 SunPower Maxeon 445W D Plus 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.