Wuxi Suntech Power Co., Ltd
STP290S-20/Wfw
TIER 2
Monocrystalline
290
Pmax (W)
17.9%
Efficiency
—
Voc
25Y
Warranty
Technical Specifications
| Brand | Wuxi Suntech Power Co., Ltd |
| Model | STP290S-20/Wfw |
| Max Power (Pmax) | 290W |
| Efficiency | 17.9% |
| Cell Type | Monocrystalline |
Below-Average Efficiency: At 17.9% efficiency, this module prioritises affordability. Efficiency can be offset by lower cost per watt.
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 128 Wuxi Suntech Power Co., Ltd models in database
FAQ
What are the dimensions and weight of the Wuxi Suntech Power Co., Ltd STP290S-20/Wfw?
Dimensions vary by configuration.
What is the max power output of the Wuxi Suntech Power Co., Ltd STP290S-20/Wfw?
The Wuxi Suntech Power Co., Ltd STP290S-20/Wfw is rated at 290W under STC (1000 W/m², 25°C, AM 1.5).
How efficient is the Wuxi Suntech Power Co., Ltd STP290S-20/Wfw?
This panel has 17.9% efficiency, which is below-average efficiency for commercial solar panels.
How long is the warranty for the Wuxi Suntech Power Co., Ltd STP290S-20/Wfw?
The STP290S-20/Wfw comes with a 25-year product warranty covering defects and degradation.