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Nanjing Green Lighthouse – China’s low carbon building

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A landmark of a low carbon building has been constructed in Nanjing in China.

The Chinese government has increasing focus on the country’s growing energy consumption and the severe problems with air pollution and health issues that follows in its wake.

Therefore, the government and a number of local authorities have launched pilot projects to pave the way for a greener urban development with an emphasis on energy savings in buildings.

One of these projects is Nanjing Green Lighthouse, a low carbon building located in Nanjing’s new green urban development zone, Nanjing High Tech Zone. The building serves as an exhibition center for sustainability and urban planning and provides office and conference facilities to the administration of Nanjing High Tech Zone.

Designed as a Danish low-energy building
COWI in China, together with the Chinese architecture and urban planning company Archiland International, have designed the building and developed the advanced energy concept.

The building is designed as a Danish low-energy building, which, together with the integrated energy solution is something very special and new in China.

The innovative energy concept is designed by COWI to suit the local climate. It is based on information and experience from the Danish Green Light House and is defined broadly so that it includes the building envelope and daylighting, but at the same time minimizes direct solar irradiation.

In summer, mechanical ventilation and dehumidification of the ventilation supply is necessary due to the climatic conditions.

Thermo Active Building slabs (TABs) are used for cooling in conjunction with the ventilation air, which provides energy-efficient cooling with better indoor air quality than if only cooled with air.

During winter months, the TABs provide heat for the building, and at the same time natural ventilation is used in large parts of the building.

The goal is aiming for LEED Gold certification.

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