Armed with better understanding of failure modes from the Bologna University study, HERA Group commissioned ISOIL Industria S.p.A to help reduce non-revenue water using innovative technologies. ISOIL Industria’s deep knowledge of market needs makes it the right partner to drive the best business decisions and achieve efficiency gains. ISOIL Industria partnered with Rezatec to deploy its Pipeline Risk tool.
Rezatec’s Pipeline Risk product combines satellite data with artificial intelligence techniques to produce risk maps expressing parameters such as the Likelihood of Failure (LOF).
The predictive assessment of the network began in 2019, with a retrospective analysis of data from 2016-2018, for a relatively small 490 km section of HERA’s water system.
HERA provided their 2016-2017 network breakage data and Rezatec predicted further breakages in 2018, which had already been identified and recorded by the utility. This was the first step towards validating accuracy.
Pipeline Risk helps HERA prioritise its pipeline replacement investment by assessing the likelihood of failure in each section of pipe using historic pipe failure data to build a predictive model. The model analyses data on the material, diameter and age of the asset, as well as the soil and terrain that surrounds it. Satellite data is used to factor in terrain motion such as uplift or subsidence and vegetation growth, which also has an impact on failure risk.
Pipeline Risk not only identifies those parts of the network at higher risk of failure, it also expresses the Consequence of Failure (COF) as a cost to the utility. This metric considers the number and type of customers potentially affected by a failure, any third-party liabilities, potential effects on the transport network as well as the direct cost of digging up and replacing the pipe.