#Japan #Sekisui Chemical #Perovskite Solar #Okinawa Electric #Miyako Island

Launch of Demonstration Study for Film-Type Perovskite Solar Cells

On March 18, 2025, a significant collaborative initiative began on Miyako Island, Okinawa, led by four partners: Sekisui Chemical Co., Ltd., Sekisui Solar Film Co., Ltd., Okinawa Electric Power Co., Ltd., and Unichika Co., Ltd. This project focuses on assessing the performance of film-type perovskite solar cells, which are installed on weed control sheets, in the harsh environment known for its winds and salt damage.

Background of the Demonstration

Japan is shifting towards renewable energy solutions to achieve carbon neutrality by 2050. Among these, solar power is recognized as a core energy source. However, Japan's limited flat land area presents a challenge for conventional silicon solar panels, limiting their installation potential.

The film-type perovskite solar cells, with their lightweight and flexible characteristics, present a promising alternative. Their adaptability enables installation in locations where traditional panels might not suffice, thus paving the way for an increased adoption of renewable energy. Particularly for Okinawa, a region prone to typhoons and salt damage, this experiment marks the first step in evaluating solar energy solutions tailored to local environmental challenges.

Details of the Demonstration

The project involves installing Sekisui Chemical's film-type perovskite solar cells onto weed control sheets manufactured by Unichika within the Okinawa Electric management site in Miyako Island. The assessment primarily focuses on wind resistance and salt damage resilience.

• - Location: Okinawa Prefecture, Miyako Island (Okinawa Electric management area)
• - Installation Scale: Approximately 10 square meters of film-type perovskite solar cells on weed control sheets.
• - Demonstration Period: Starting from March 18, 2025, for about one year.
• - Objective: Evaluating the impact on the film-type perovskite solar cells caused by typhoons and salt damage, along with testing easy installation methods (which should take about 4.5 hours, using special anchors for wind resistance).

![Installation with Special Anchors] (URL to photo 1)
![Completed Installation] (URL to photo 2)

Future Developments

Following the initial demonstration, Okinawa Electric Power and Sekisui Solar Film will conduct regular inspections and thoroughly analyze the results. The insights gained will be critical for improving the weather resistance of film-type perovskite solar cells and streamlining the installation process. This initiative not only aims to enhance the effectiveness of solar technologies but also contributes to the broader goal of achieving a decarbonized society.

As renewable energy continues to be paramount for sustainable development, the success of such innovative projects could play a crucial role in shaping Japan's energy future, especially in areas facing unique environmental challenges.