Acting on a Grundfos LCC analysis, a German water supplier reduced specific energy expenditure from 0.57 to 0.38 kWh/m³.
As proven time and time again, pumps are all too often over-dimensioned, typically because of optimistic estimates or changes in user behaviour over time. In water supply this affects the mains, reservoir tanks, wells and clean water pumps.
At the Lübzin Waterworks, Eurawasser Nord GmbH has conducted an LCC analysis and acted on the results. They now save 33% of their energy consumption thanks to more energy efficient pumps.
The case showed that even when the specific energy expenditure already compares well with averages, there is still a huge savings potential. Eurawasser Nord now aims to perform LCC analysis on more and more waterworks and reap further benefits.