Taisei Corp. to Use Newly Developed Sunlighting System in High-Rise Building

Copyright Taisei Corp.

Taisei Corp., a major Japanese construction company, has adopted its new sunlighting system, T-Soleil, to Minato Mirai Center Building, which is now being constructed in Minato Mirai Area, Yokohama City. The system, which was released in March 2006, allows sunlight to be taken into the building from the rooftop.

Through this system, natural sunlight taken in at the rooftop is transmitted to the other floors using an automatic sunlight tracking mirror and multistage mirrors placed within an 80-meter high stairwell (spanning the fourth floor to the roof) in the central part of the 21-storey building (height, ~100 meters). In combination with other energy-saving technology, including heat-blocking technology and lighting control, this system is expected to cut electricity use and reduce carbon dioxide (CO2) emissions by 32 percent from current levels.

This building received the highest "S" rank certification of the Comprehensive Assessment System for Building Environmental Efficiency in Yokohama (CASBEE Yokohama). In addition to the use of sunlight, a variety of features of this building scored highly, including greening of building surfaces, use of rainwater, durability improvements and consideration toward city appearance and landscape. The building is scheduled to be completed in May 2010.

Taisei Corp. Designs Practical Sunlighting System Using Mirrors (Related JFS article)
http://www.japanfs.org/en/pages/026357.html
Taisei Corp. official website
http://www.taisei.co.jp/english/

Posted: 2009/11/02 06:00:15 AM