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Brand range: 170W–330W
Monocrystalline
Suntech Power STP220-20/Wd
Max Power
220W
Efficiency
13.33%
Operating V
29.5V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 36.6V |
| Short Circuit Current (Isc) | 8.05A |
| Voltage at Pmax (Vmp) | 29.5V |
| Current at Pmax (Imp) | 7.46A |
| Temp. Coefficient of Pmax | -0.417%/°C |
| Dimensions | 1665 x 991 x 35 mm |
| Weight | 20.6kg |
| NOCT | 45.9°C |
| PTC Rating | 205.6W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 133 Suntech Power models in database
FAQ
What is the max power output of the Suntech Power STP220-20/Wd?
The Suntech Power STP220-20/Wd is rated at 220W under STC (1000 W/m², 25°C, AM 1.5).
How efficient is the Suntech Power STP220-20/Wd?
This panel has 13.33% efficiency, which is standard for commercial solar panels.
How long is the warranty for the Suntech Power STP220-20/Wd?
The STP220-20/Wd comes with a 25-year product warranty covering defects and degradation.
What are the dimensions and weight of the Suntech Power STP220-20/Wd?
It measures 1665 x 991 x 35 mm and weighs 20.6kg.
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📊 Brand Context
Suntech Power offers 133 solar panel models from 170W to 330W.
Browse all Suntech Power models →