#Japan #Osaka #Solar Power #YKK AP #Perovskite

Implementation Testing of BIPV Windows by YKK AP

YKK AP Corporation, headquartered in Chiyoda, Tokyo, has commenced testing the implementation of building-integrated photovoltaic (BIPV) windows using glass-type perovskite solar cells at their premises in the Tanimachi YF Building located in Osaka. This marks a significant step forward in their ongoing efforts to develop sustainable energy solutions within architectural structures.

In partnership with Kandenko Co., Ltd., starting in May 2024, YKK AP aims to advance the development of BIPV systems that harness the functionality of windows and wall surfaces. The company has planned several experimental projects to assess the performance of these innovative windows under various conditions. Upcoming sites for testing include the Akihabara demonstration house set for July to October 2024, an exhibition at the Sapporo Snow Festival in February 2025, and further experiments in other strategic locations.

The current project involves replacing existing interior windows on the 6th and 7th floors of the Tanimachi YF Building with the new BIPV windows. This construction not only pushes the boundaries of architectural design but emphasizes the importance of sustainability in urban environments. The integration of perovskite solar cells into the building design will be evaluated for performance, especially in urban settings where building shadowing and environmental conditions often affect solar energy capture.

Objectives of the Implementation Test

The main objectives for this implementation test include:
1. Verification of Installation Process: This encompasses the entire process from planning to installation, including the removal of existing windows.
2. Testing System Design: Utilizing a power conditioner for the system setup, the performance of perovskite solar cell systems will be evaluated regarding cabling methods, grid connection, and compliance with fire safety laws.
3. Performance Verification: Assessing energy generation capabilities when the solar cells are placed behind heat-reflective glass and analyzing their impact on the building's overall aesthetics.
4. Heat Ventilation Checks: Investigating how the absence of ventilation between the outer and inner windows affects energy production and thermal performance.

Through initiatives like this, YKK AP continues to broaden its scope from energy conservation through window insulation to energy generation with BIPV solutions, contributing significantly to carbon neutrality efforts. This initiative is vital in urban settings where energy efficiency and sustainability are becoming increasingly prominent.

Project Overview for Tanimachi YF Building Implementation Test

• - Duration: Expected from October 28, 2025, for approximately one year.
• - Location: Osaka City, Chuo-ku, Tanimachi 4-8-7, 6th and 7th floors of the Tanimachi YF Building. (Not open to the public)
• - BIPV Windows Installed: A total of 27 windows (13 on the 6th floor and 14 on the 7th floor).

- Glass-type perovskite solar cells: 27 units.
- Power conditioner: 1 unit (for grid connection).

• - Electrical Works: Conducted by Kandenko Co., Ltd.

YKK AP's dedication to exploring innovative energy solutions reflects its commitment to sustainable development in architecture. This ongoing project could set a new standard for integrating renewable energy sources into urban infrastructure, paving the way for a cleaner, greener future.