Compare water use before and after a saving measure to get the volume saved and the water saving rate.
可用于评估节水器具效果。
| Item | Formula | Source / Standard |
|---|---|---|
| Water saving | (W0-W1)/W0 ×100% | water saving |
| Baseline | Pre-retrofit W0 | water audit |
| Unit | m³/year | volume unit |
能耗、碳排放与环保相关的估算。