Energy Efficiency in Pumping Systems

Thematic Area
Sustainable Development and International Cooperation
Water, energy and Food
Areias de Vilar WTP
Vila Nova de Famalicão
Application Areas
Water Services



Optimization of processes in the main consumers of electricity through the implementation of energy efficiency measures aimed at reducing consumption and operating costs.


  • As part of the implementation of ISO 50001, one of the objectives of Águas do Norte is to insert more infrastructures on the border of ISO
  • The Barradas Elevation Station was evaluated in order to verify if this infrastructure could be optimized as to the consumption
  • This unit represents almost 6% of the consumption and the total cost of the electric energy consumed in water supply
  • Bypass the tank that supplies the EE and take advantage of the arrival pressure to reduce the lifting height


This change resulted in a reduction in consumption and electricity cost of more than 30%, totaling an annual invoice of around € 270,000. In view of the results obtained, this infrastructure will no longer be an energy intensive consumer since it will suffer a reduction in consumption of more than 210 tonnes of oil equivalent and of 400 tonnes in CO2 emissions.