Shimizu Corporation, Japan’s largest contractor, opened the doors today to its new headquarters building, which has specifically been designed to emit the lowest levels of carbon dioxide (CO2) in the world. Located in Kyobashi, as part of Tokyo’s Chuo Ward, Shimizu’s new building only releases 38 kilograms-per-meter-squared of CO2, 62% less than the average amount emitted by other Tokyo structures. Shimizu hopes its new headquarters will prove to be an example of what the contractor is capable of, and increase the demand for its energy conserving buildings.
Adopting and developing its own new technologies, Shimizu has reduced its CO2 emissions like never before. The new air conditioning system cuts CO2 by using radiant heat. Water hoses are installed under the ceiling boards, and by controlling the water’s temperature, it affects the surface of the boards. With a temperature of about 20 degrees celsius, the body heat from people working in the office can be absorbed.
The other significant advantage come from lighting technologies. Motion sensors are used in combination with light-emitting diodes (LEDs) in order to reduce the amount of electricity used, as well make sure the lights are only one when someone is present
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