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Brand range: 67.5W–550W
Thin-Film
First Solar FS-387
Max Power
87.5W
Efficiency
12.15%
Operating V
49.2V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 61V |
| Short Circuit Current (Isc) | 1.98A |
| Voltage at Pmax (Vmp) | 49.2V |
| Current at Pmax (Imp) | 1.78A |
| Temp. Coefficient of Pmax | -0.183%/°C |
| Dimensions | 1200 x 600 x 35 mm |
| Weight | 9.0kg |
| NOCT | 48.4°C |
| PTC Rating | 84.7W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 218 First Solar models in database
FAQ
What is the max power output of the First Solar FS-387?
The First Solar FS-387 is rated at 87.5W under STC (1000 W/m², 25°C, AM 1.5).
How does temperature affect the First Solar FS-387?
With a temp coefficient of -0.183%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.
What are the dimensions and weight of the First Solar FS-387?
It measures 1200 x 600 x 35 mm and weighs 9.0kg.
How efficient is the First Solar FS-387?
This panel has 12.15% efficiency, which is standard for commercial solar panels.
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📊 Brand Context
First Solar offers 218 solar panel models from 67.5W to 550W.
Browse all First Solar models →