Porto cuts unbilled water to 11.8% as AI tool targets leaks

Porto's water utility, Águas e Energia do Porto, reported that unbilled water fell to 11.8% in 2025, from over 52% when the company was created in 2006. Over 20 years it says it has saved more than 255 billion litres. A digital system called InnoWave, combining artificial intelligence, geographic data and operational records, helps manage pressure, predict where pipes are likely to burst and prioritise replacements across 830 km of network serving over 170,000 customers. Field teams validate the models. The system has won three national awards, and the utility ranked first nationally for water supply service quality for the third year running.