We measure the reuse of water across the university. In accordance with our Campus Planning Principles, all new buildings at our university are required to incorporate rainwater harvesting systems. These systems typically include the installation of rainwater storage tanks and collection basins within the underground raft foundation. The collected rainwater is then used for irrigating landscape plants. According to our monitoring, these rainwater harvesting systems result in annual water savings of approximately 5,000 metric tons.
Notable examples include:
- Lixian Hall with a rainwater storage tank of approximately 382 CBM.
- Zonghe Lecture Building with a rainwater storage tank of approximately 33.6 CBM.
- Tseng Jiang Hall with a rainwater storage tank of approximately 130 CBM.
- Chee-Chun Leung Cosmology Hall with a rainwater storage tank of approximately 252 CBM.
- MK Innovation Hall with a rainwater storage tank of approximately 6 CBM.
NTU also has existing buildings equipped with rainwater harvesting systems. For example, the Hydrotech Research Institute installed an integrated water harvesting system (IWHS) in 2021, which results in an annual water recovery of approximately 3,000 metric tons.
