#Japan #Chalcopyrite Solar #Copper Indium Se #Wind Energy Industry #Minamikyuushu City

Introduction

Furukawa Sangyo Corporation and its partners, Shikoku Electric Engineering Co., and Eiwa Wind Power Co., have embarked on an innovative joint demonstration experiment starting November 10, 2026. This project focuses on installing film-type chalcopyrite solar cells on the sides of wind turbine towers to check their performance and application feasibility.

The Joint Demonstration Experiment

This experiment aims to harness the unique properties of chalcopyrite solar cells, known for their high light absorption characteristics and conversion efficiency. Furukawa Sangyo supplies these solar panels, while Shikoku Electric Engineering applies its installation techniques within a wind power facility operated by Eiwa Wind Power. Over the next three years, they will assess the integration of solar technology into existing turbine structures.

Details of the Installation

• - Location: Installed on the southern side and Sakurajima-facing sides of the wind turbine tower at Eiwa Wind Power’s facility in Minamikyuushu City, Kagoshima Prefecture.
• - Installation Content: A total of four chalcopyrite solar panels, covering approximately 2 square meters.
• - Experimental Duration: Spanning three years starting from November 10, 2026.

This project aims to explore the installation methods of chalcopyrite solar cells on tapered vertical curved surfaces, further evaluating the impacts of natural elements such as volcanic ash and dust on their performance.

Benefits of Chalcopyrite Solar Cells

Chalcopyrite solar cells offer a lightweight, flexible, and efficient energy generation alternative. Their structure, composed of copper (Cu), indium (In), and selenium (Se) compounds, allows them to be exceptionally effective in various applications. This innovative solar technology paves the way for more diverse installations, potentially revolutionizing the way renewable energy is harnessed in the future.

Installation Techniques

For the mounting of the solar cells on the turbine, advanced fastening technologies have been implemented, specifically using 3M's VHB double-sided tape and dual lock fasteners. This ensures a secure and efficient process, maximizing the potential benefits of integrating solar power with wind energy.

Future Developments

By leveraging the results from this demonstration, the partners anticipate establishing effective installation methods for the chalcopyrite solar technology on various curved surfaces. The long-term goal is to contribute to realizing a carbon-neutral society through the broader application of these solar cells. The findings will ultimately work towards enhancing the efficiency of renewable energy sources and support national energy goals.

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This joint venture represents a crucial step in advancing solar technology and integrating it into established wind power infrastructures, reflecting the ongoing commitment of these companies to innovation and sustainable practices in energy production.