Large UK Water Utility

Hydraulic Network Risk Tool


A large UK water utility sought to consolidate multiple independent data sources used to determine the level of risk in the water system. Operators in the control room had no singular view of the network, instead having to derive the state of risk by looking at various sources aggregated in different ways and by different tools. To better service their 10+ million customers and generate insights from the thousands of sensors across the network, ExploreAI helped the utility to implement the Hydraulic Network Risk Tool, or HNRT, platform. The solution would present the various data sources as a single, consolidated visualisation overlaid on a map. In-built and automated analytics would alert operators to risks across the network, enabling proactive maintenance and reduced interruptions.

About the water utility

  • One of the UK's largest private water utilities.
  • 10+ million customers.
  • 31k+ km of infrastructure.
  • 500k+ sensors and CPPs.

Project highlights

  • ~24-month project.
  • Six data sources, including Pi.
  • 1B+ rows of data ingested annually.

Hydraulic Network Risk Tool

The HNRT uses the network's pressure and flow data from district meters and CPPs. Those inputs are combined with customer contacts – when a customer reports an issue or submits a complaint – to show all relevant assets on a map, including valves, reservoirs, pipes, meters, and digital assets. HNRT also ingests data from the utility's operational platform, which provides the states of actuated items like whether, for example, a valve is open or closed. Customer property data from yet another system is also included and shows details like the number of properties in a DMA.

These data sources are ingested at 15-minute intervals from the thousands of meters and CPPs across the network. HNRT performs preset analytics on the data to alert operators to any risks. For example, large pressure differentials across valves which are supposed to be open, or low reservoir levels. HNRT is used by network operators, operational control managers, and system operators. The map on which the asset and status data is overlaid uses a RAG (red-amber-green) system to colour the pipes according to any of pressure, flow, or supply. Supply data is pulled from another ExploreAI-developed system called SDSR. At the highest level, operators can view the overall hydraulic system. They can drill down, in turn, to FMZ level, DMA level, including PMAs, and finally to the pipe level.

The net effect is a consolidated, near-real-time view of a vast and complex water system, enabling operators to be better informed and with greater lead times.


£7M saving by predicting a large water outage and enabling prevention.

The prediction helped reduce the number of properties affected and the time impact for those affected.

3.4 ML/day saved in leakage, resulting in annual savings of £1.3M+.

ExploreAI has become a key partner for us [...]. They worked collaboratively with us to create groundbreaking new data science-driven capabilities which have won awards and helped us significantly improve business performance. The ExploreAI team has worked alongside us, to challenge and steer us and help us develop our own data science skills.

– Head of Data Factory

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