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Multi-Hued Kuggen Building (the Cog) Features A Rotating Photovoltaic Shade Screen
Posted By Bridgette Meinhold On May 3, 2011 @ 6:38 pm In Architecture,carousel showcase,Gallery,Green Building | 1 Comment
Kuggen is located in Lindholmsplatsen and is surrounded by traditional gray buildings on a lively public plaza. The formerly windy site is made more friendly as a result of the circular building, which helps calm the breezes as they wrap around the facade. Inside, the bottom floor serves as a coffee shop  and meeting space for employees, faculty and students of the University, with the second floor serving as public space and the top 4 floors holding offices. Each floor is 1.5 meters larger in circumference growing by two windows per floor and is shifted towards the south to provide shade for the floor below.
The dramatic facade is shaped like a cog wheel or the saw-tooth profile of a leaf. The triangular shaped windows let in light where it is needed most, which is at the ceiling, so that daylight  can penetrate into the center of the building. Long-lasting ceramic panels serve as the facade’s cladding, which were then painted in bold shades of red. The building’s structure is composed of prefabricated concrete panels  that provide thermal mass. Motion-activated natural ventilation and lighting systems help reduce energy use to where and when it is needed.
On the roof, a solar thermal system  generates hot water for use inside the building. And the most impressive feature of the building is the rotating sun screen for the top floor. Since the top floor has no shade, a metal track and sun screen was installed on the facade, which tracks the sun, providing shade for the spaces behind. Photovoltaics  are integrated into the screen to produce electricity for the building’s use. With all the energy efficiency measures, daylighting and the facade, the building uses less then 60 kWh/sq meter.
Via Designboom 
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URL to article: http://inhabitat.com/multi-hued-kuggen-building-the-cog-features-a-rotating-photovoltaic-shade-screen/
URLs in this post:
 saw-toothed edge: http://inhabitat.com/giant-zig-zag-glass-umbrella-envelops-new-college-of-arts-in-nantes-france/
 Winngårdh Arkitektkontor: http://www.wingardhs.se/
 high performance facade : http://inhabitat.com/sparking-edf-national-archive-building-boasts-a-beautiful-high-performance-facade/
 shade screen: http://inhabitat.com/a-playful-checkerboard-facade-protects-the-pegasus-building-from-the-indian-heat/
 : http://inhabitat.com/multi-hued-kuggen-building-the-cog-features-a-rotating-photovoltaic-shade-screen/kuggen-4/?extend=1
 coffee shop: http://inhabitat.com/seattles-15th-ave-coffee-and-tea-house-is-a-rustic-eco-chic-store-built-by-starbucks/
 daylight: http://inhabitat.com/category/daylighting
 prefabricated concrete panels: http://inhabitat.com/south-vancouvers-soaring-sunset-community-center-connects-with-nature/
 solar thermal system: http://inhabitat.com/new-solar-thermal-flat-panels-are-eight-times-more-efficient-than-existing-technology/
 Photovoltaics: http://inhabitat.com/category/solar-power
 Designboom: http://www.designboom.com/weblog/cat/9/view/14201/wingardh-arkitektkontor-kuggen.html
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