Monocrystalline vs. polycrystalline solar modules

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There are two main types of solar panels to choose from:

Monocrystalline modules: Consist of a single silicon crystal
Polycrystalline modules: Consist of many silicon crystals
Monocrystalline modules have a higher module efficiency but are more expensive. In contrast, polycrystalline modules are cheaper but have a lower efficiency.

Understanding Efficiency and Performance
The efficiency shows how efficiently a bulgaria mobile database module converts sunlight into electricity. Modern modules achieve values ​​between 20-23%. The power is measured in watt peak (Wp) and is between 400-450 Wp for current modules. These values ​​are determined under standardized test conditions.

Meaning of the Temperature Coefficient
The temperature coefficient shows how much the performance decreases as temperatures rise. A good value is below -0.3%/°C. This is important for performance optimization, as modules work less efficiently in hot weather.

module type efficiency temperature coefficient Cost
monocrystalline 20-23% -0.3% to -0.4%/°C High
polycrystalline 15-17% -0.4% to -0.5%/°C Medium
CIGS thin film up to 22.2% -0.36%/°C Low.