Method and Device for Reducing the Potentially Induced Degradation of Solar Cells

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This invention presents a method and device for reducing potential-induced degradation (PID) in solar modules. By incorporating an electric device that minimizes the electric potential difference between the photovoltaic cell surfaces and adjacent components (such as glass cover plates), the system prevents harmful ion migration that degrades the solar cells over time. The technology ensures that even in large, series-connected solar arrays, the risk of long-term performance loss due to PID is greatly reduced, resulting in more robust and long-lasting solar modules.

Use CasesContent extracted from patent full text and abstract with AI.

• Utility-scale solar farms where PID can significantly impact long-term yields
• Residential and commercial rooftop solar installations seeking extended module lifespans
• Manufacturing of advanced photovoltaic modules for improved reliability under harsh conditions
• Solar installations in regions with high humidity or temperature fluctuations that exacerbate PID
• Retrofit kits or modules for upgrading existing solar arrays to prevent PID damage

BenefitsContent extracted from patent full text and abstract with AI.

• Dramatically reduces performance loss caused by potential-induced degradation, ensuring higher energy output over the module's life
• Extends the operational and economic life of solar modules, lowering long-term maintenance and replacement costs
• Requires minimal additional energy or technical complexity to implement, thus cost-effective
• Compatible with a variety of photovoltaic technologies and module structures
• Improves reliability in series-connected module arrangements, boosting return on investment for large-scale solar projects

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Inventors & Applicants

Patent Abstract

The invention relates to a solar module for generating an electric current, comprising a plurality of photovoltaic cells (13) which are electrically connected together, wherein one photovoltaic cell (13) has two electrodes, and a material, in which free charge carriers can be generated by an electromagnetic wave, is located between the two electrodes. The solar module also comprises one or more components (10) adjoining photovoltaic cells (13). The invention is characterized in that an electric device (15, 30, 31) is provided, by means of which an electric potential difference between one side of a photovoltaic cell (13) and an adjoining component (10) is reduced when generating an electric current. The invention additionally relates to a method for operating the solar module. By using the invention, an efficient solar module with a long service life can be provided.