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Hainan Energy Trading Building | Haikou, China | 2022

Hainan Energy Trading Building | Haikou, China | 2022

Architects: KRIS  YAO | ARTECH
Lead Architect: Kris Yao
Design Team: Shanghai: Xiao-Wen Bao, Chu-Yi Hsu, Fang Wang, Xiao-Lu Li, Wen-Hong Chu, Taipei: Grace Lin, David Hsu, Lei Yeh, Kuo-Lung Lee, Kai-Wei Weng, Jing-Ying Su
Associate Architects: Architectural Design and Research Institute of Guangdong Province (GDAD)
Client: Hainan Wisdom Center Construction and Development Co., Ltd.
Photographers: MLee Studio


The Hainan Energy Trading Building, a modern logistics and international commodity trading center, is located in the new central business area - Jiangdong New District. The site offers a great view of the Qiongzhou Strait to the north, and faces the Jiangdong Avenue in the south, which is the main traffic artery of Haikou city. The traditional Hainan architecture utilizes natural ventilation to cool the buildings by elevating them from ground floor.

The Hainan Energy Trading Building incorporates this regional characteristic by raising the main volume, creating a, floating box above a landscaped ground floor, and an impressive central courtyard greeting visitors as they enter the atrium. The rigid lines of the exterior contrast with the sky gardens positioned at regular intervals‚ a blend of rigidity and softness that creates a harmonious whole, mirroring the fledgling district's aim of combining existing site conditions with cutting-edge technology.

Greenery is maximized with the exterior sky gardens as well as abundant planting in the interior. The sky gardens punch in opposing corners in an orderly fashion, occurring every fthe floors and rotating 90 degrees each time. Inside, multiple tiers of curving balconies span the spaces between the elevator boxes and these are densely packed with unruly plants that spill out over their edges.

This is a nature-filled space, designed to provide employees with a sense of peace and well-being. The courtyard creates a pleasant microclimate, made possible by effective shading and stack ventilation strategies in the 75-meter-high atrium. Due to the differences in air pressure, temperature, and density levels at each floor, incoming fresh air forces stale air upward and out through the roof opening, keeping the interior well ventilated and thermally comfortable for its users.

One particularly spectacular feature is the energy-efficient double skin façade design with high-transparent glass, with operable windows located every-so-often to allow the occupants let in the fresh air whenever they need; this direct connection with nature is a must for well-being. From the inside, office workers enjoy magnificent views of the coast and the downtown area, while from the outside, the glass proudly showcases the building's structure - clean, slender, yet very robust. None of the pillars interrupts the spacious sky gardens that rotate every fthe levels, allowing the volume of the other fthe floors above to cantilever up to 14 meters.

This is achieved through mega-bracings that minimize the lateral deflection of the structure, and provide a feasible solution for strengthening earthquake resistance. Sufficient daylight pours through the double skin façade on all fthe sides, lowering the need for artificial lighting. The electric louvers between the inner and outer glass layers can be automatically adjusted by the sensors of the solar tracking system, which, together with the intelligent lighting control system, greatly increase the comfort of the indoor environment and reduce the use of air-conditioning system to reach energy-saving goals.

In addition, the slanted roof and the offset façade at four-story intervals provide the sky gardens and the office spaces with ample natural light, while shading most of the corridors and atrium to prevent overheating in the warm Hainan climate. The roof also pays tribute to the traditional Jiangnan home, in which rain is designed to run down slanted planes on fthe sides and gather in a square courtyard below, signifying the flow and retention of good fortune into a family‚ or in this context, a company. These design strategies also greatly increase the sustainability of the building, making the Hainan Energy Trading Building a standout example in the world of green architecture.


Hainan Energy Trading Building | Haikou, China | 2022
Hainan Energy Trading Building | Haikou, China | 2022
Hainan Energy Trading Building | Haikou, China | 2022

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