Case study 2: energy costs obtained for two weeks by using different pump control approaches (week 1 – winter period; week 2 – summer period)
| Pump control approach . | Week 1 . | Week 2 . | ||
|---|---|---|---|---|
| Energy costs [€] . | Average no. of pump switching on/off per day . | Energy costs [€] . | Average no. of pump switching on/off per day . | |
| PS | 1,648 | 4 | 1,945 | 5 |
| FTL | 2,057 | 3 | 2,371 | 4 |
| VTLs | 1,649 | 4 | 1,945 | 5 |
| Pump control approach . | Week 1 . | Week 2 . | ||
|---|---|---|---|---|
| Energy costs [€] . | Average no. of pump switching on/off per day . | Energy costs [€] . | Average no. of pump switching on/off per day . | |
| PS | 1,648 | 4 | 1,945 | 5 |
| FTL | 2,057 | 3 | 2,371 | 4 |
| VTLs | 1,649 | 4 | 1,945 | 5 |