First SolarFS-390
The First Solar FS-390 is a solar panel with peak power 90 Wp, efficiency 12.5 % and cell type cdte.1
Key figures
Technical specifications
| General | |
|---|---|
| Cell type | Thin film (CdTe)1 |
| Cells (in series) | 771 |
| Performance | |
| Peak power | 90 Wp1 |
| PTC power rating | 85.8 W1 |
| Efficiency | |
| Efficiency | 12.5 %1 |
| Temperature coefficient Pmax | -0.18 %/°C1 |
| Nominal operating cell temperature (NOCT) | 48.4 °C1 |
| Electrical | |
| Open-circuit voltage (Voc) | 61 V1 |
| Short-circuit current (Isc) | 2.04 A1 |
| Voltage at Pmax (Vmp) | 49.2 V1 |
| Current at Pmax (Imp) | 1.83 A1 |
| Dimensions & weight | |
| Width | 600 mm1 |
| Height | 1,200 mm1 |
Frequently asked questions
What is the peak power of the First Solar FS-390?
The peak power of the First Solar FS-390 is 90 Wp.1
What is the efficiency of the First Solar FS-390?
The efficiency of the First Solar FS-390 is 12.5 %.1
Which cell type does the First Solar FS-390 use?
The cell type of the First Solar FS-390 is cdte.1
What is the temperature coefficient Pmax of the First Solar FS-390?
The temperature coefficient Pmax of the First Solar FS-390 is -0.183 %/°C.1
Sources
- CEC Solar Equipment List – PV modules — California Energy Commission · accessed 27 Sept 2026