PUB develops sectoral water efficiency benchmarks to help industry raise their water efficiency performance.
The WEI serves as a performance indicator for water efficiency, and it refers to the amount of water used per business activity indicator*.
WEI = Total amount of water consumed / business activity indicator
*Business activity indicator – A measure of business activity that takes into account the business operations of the water user.
| Sector | Median Value |
|---|---|
| Office Buildings (with Water-Cooled Cooling Tower) | 1.0 m3 / m2 / year |
| Retail | 1.3 m3 / m2 / year |
| 2.5 L / p / d | |
| 4-star Hotels (with Water-Cooled Cooling Tower) | 0.35 m3 / Guestnight |
| 5-star Hotels (with Water-Cooled Cooling Tower) | 0.62 m3 / Guestnight |
| Primary Schools | 10.6 L / p / d |
| Secondary Schools | 12.8 L / p / d |
| Junior Colleges | 11.5 L / p / d |
| Data Centres | 2.4 m3 / MWh |
| Commercial Laundries | 13.5 m3 / tonne |
| Average Recycling Rates | |
| Wafer Fabrication Plants | 43% |
| Semiconductors (excluding Wafer Fabrication Plants) | 27% |
| Biomedical Manufacturing | 14% |
Disclaimer: The figures indicated in the table may exclude tenants’ usage.
Download the 2021 Sectoral Water Efficiency Benchmarks.
