The main 4 types of solar panels
Sorts of solar panels
You have several types of solar panels, all different types, sizes and brands. The type of panel is mainly determined by the material the solar cells are made of. We describe the four best known types on this page:
- Thin film
- Glass panels
Degradation of solar panels
All types of solar panels produce less as they age. In general, thin-film panels degrade slightly faster than mono and polycrystalline panels. The power guarantees given by manufacturers on the different types of solar panels teaches us more.
For example: The warranty for many thin-film panels is 10-year product warranty, and power warranty of 85% for the first 10 years, and 75% for the remaining years through year 25.
The warranty of many mono and polycrystalline panels is 25 years product warranty, and power guarantee of 95% for the first 5 years, then a decrease of 0.4% per year for the remaining years until year 25.
Note that the thin-film solar panels are a smaller size and have a lower watt peak per panel. So to get the same yield, more panels are needed than with the glass types of solar panels. Depending on the Watt peak of the panel, thin film panels can require up to 50% more roof area than mono and polycrystalline panels. This can also mean that the installation costs of the thin film panels are higher. On average, you should expect at least 20% less efficiency from these panels per m2.
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