As part of our ongoing work to improve resource efficiency in large commercial spaces, we supported a commercial center with a comprehensive water monitoring and analysis. The goal was to better understand how water was being used across the property, identify inefficiencies, and explore opportunities for rainwater reuse.
Water Use Optimization in a Commercial Center
Type of Project: Mixed-use
総面積: 170,000 sqm
所在地: China
Region: Asia
プロジェクトについて
Water Use Analysis
Through our detailed assessment, we analyzed annual water consumption across several areas of the facility:
- Office areas: over 4,900 m³ – the highest consumption within the facility
- Canteen kitchen: over 2,300 m³
- Canteen toilets: 30 m³
- Guest reception: 38 m³
Alongside the consumption analysis, we also conducted a rainwater harvesting assessment to evaluate the client’s existing reuse practices and potential improvements.
Rainwater Collection and Reuse
Over the year, the center collected 1,150 m³ of rainwater onsite.
Of this, 1,116 m³ was reused for non-potable purposes such as landscaping and maintaining an artificial lake.
Our analysis revealed that at least 34 m³ of additional water could be redirected for reuse with minimal adjustments.
Water Leak Detection
We detected abnormal water usage through the submeter, which triggered an automatic alert. After investigating, we found a broken timer-controlled valve at a fountain.
By promptly closing the faulty valve and replacing the controller, we were able to prevent further water waste—saving approximately 98 m³ of water per day from just a single fountain.
In total, the system helped us avoid the unnecessary consumption of around 105 m³ of water, restoring normal daily usage to only 7 m³.
Moving Forward
As a result of our analysis, we proposed a list of recommendations aimed at maximizing the efficiency of the existing rainwater harvesting system and identifying new ways to optimize water use across the facility. These focused on improving collection and storage methods, enhancing water reuse practices, and supporting long-term performance through better system maintenance and monitoring.
With these improvements, the center is well-positioned to further reduce its reliance on municipal water and support its broader sustainability goals.
