Sectoral Water Efficiency Benchmark
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.