First SolarFS-277
The First Solar FS-277 is a solar panel with peak power 77.5 Wp, efficiency 10.8 % and cell type thin film (CdTe).1
Key figures
Technical specifications
| General | |
|---|---|
| Cell type | Thin film (CdTe)1 |
| Cells (in series) | 1161 |
| Performance | |
| Peak power | 77.5 Wp1 |
| PTC power rating | 74.6 W1 |
| Efficiency | |
| Efficiency | 10.8 %1 |
| Temperature coefficient Pmax | -0.17 %/°C1 |
| Nominal operating cell temperature (NOCT) | 44.9 °C1 |
| Electrical | |
| Open-circuit voltage (Voc) | 93 V1 |
| Short-circuit current (Isc) | 1.21 A1 |
| Voltage at Pmax (Vmp) | 70.9 V1 |
| Current at Pmax (Imp) | 1.09 A1 |
| Dimensions & weight | |
| Width | 600 mm1 |
| Height | 1,200 mm1 |
Frequently asked questions
What is the peak power of the First Solar FS-277?
The peak power of the First Solar FS-277 is 77.5 Wp.1
What is the efficiency of the First Solar FS-277?
The efficiency of the First Solar FS-277 is 10.8 %.1
Which cell type does the First Solar FS-277 use?
The cell type of the First Solar FS-277 is thin film (CdTe).1
What is the temperature coefficient Pmax of the First Solar FS-277?
The temperature coefficient Pmax of the First Solar FS-277 is -0.166 %/°C.1
Sources
- CEC Solar Equipment List – PV modules — California Energy Commission · accessed 27 Sept 2026