Thin-film solar panels generally exhibit lower temperature coefficients compared to traditional crystalline silicon panels, making them more efficient in high-temperature environments. While specific brands specializing exclusively in thin-film technology are less prominent in residential markets, the following technologies and notable players stand out:
Cadmium Telluride (CdTe)
- Key feature: Temperature coefficient of -0.172%/°C, outperforming most crystalline silicon panels.
- Brand examples:
- First Solar (noted in industry standards, though not explicitly mentioned in sources) dominates CdTe production globally.
- Efficiency: Commercial CdTe panels achieve ~19% efficiency under standard conditions, with lab cells reaching 22.1%.
Copper Indium Gallium Selenide (CIGS)
- Key feature: Temperature coefficient of -0.36%/°C, balancing performance in heat with higher efficiency potential.
- Brand examples:
- Solar Frontier (now part of Idemitsu Kosan) achieved a record 23.35% efficiency for CIGS cells.
- Swiss Federal Laboratories (EMPA) and Fraunhofer ISE have advanced flexible CIGS modules (e.g., 22.2% efficiency).
Gallium Arsenide (GaAs)
- Key feature: Exceptionally low temperature coefficient (0.09%/°C), ideal for extreme heat but primarily used in aerospace due to high costs.
- Applications: Satellites and niche industrial uses; no major residential brands currently market GaAs panels.
Comparison Table
| Technology | Temperature Coefficient | Efficiency (Commercial) | Notable Brands/Developers |
|---|---|---|---|
| CdTe | -0.172%/°C | 15–19% | First Solar |
| CIGS | -0.36%/°C | 18–22% | Solar Frontier, EMPA, Fraunhofer |
| GaAs | 0.09%/°C | ~30% (lab) | Space/niche applications |
Note: Thin-film brands like First Solar (CdTe) and Solar Frontier (CIGS) are industry leaders, though residential availability may vary. For low-temperature coefficient panels, prioritize CdTe or CIGS technologies.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/are-there-any-specific-brands-of-thin-film-solar-panels-known-for-their-low-temperature-coefficient/
