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Brand range: 300W–590W
Monocrystalline
FreeVolt ECP-PVGRAF-HC-BF555-144MT-W
Max Power
555W
Efficiency
21.51%
Operating V
45.8V
Warranty
30Y
Technical Specifications
| Open Circuit Voltage (Voc) | 52.6V |
| Short Circuit Current (Isc) | 12.76A |
| Voltage at Pmax (Vmp) | 45.8V |
| Current at Pmax (Imp) | 12.13A |
| Temp. Coefficient of Pmax | -0.292%/°C |
| Dimensions | 2063 x 1250 x 35 mm |
| Weight | 32.2kg |
| NOCT | 43.2°C |
| PTC Rating | 533.0W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 58 FreeVolt models in database
FAQ
What warranty does FreeVolt provide?
FreeVolt offers a 30-year warranty for the ECP-PVGRAF-HC-BF555-144MT-W, reflecting confidence in long-term durability.
How efficient is the FreeVolt ECP-PVGRAF-HC-BF555-144MT-W?
This panel has 21.51% efficiency, which is high for commercial solar panels.
What are the dimensions and weight of the FreeVolt ECP-PVGRAF-HC-BF555-144MT-W?
It measures 2063 x 1250 x 35 mm and weighs 32.2kg.
How does temperature affect the FreeVolt ECP-PVGRAF-HC-BF555-144MT-W?
With a temp coefficient of -0.292%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.
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