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Network Analysis & WANDa Software

Allowing management of a water company’s entire data sets in one place to better understand network performance and operational risk, and inform investment.

James Tremlett is our expert in Network Analysis

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Turning data into insight

WRc's network analysis team enables the combined management of network-wide performance, hydraulic and asset data sets. This innovative approach provides an updated, comprehensive understanding of a company's operational risk. 

Forming a consistent representation of a water company's entire network is ideally suited for information interrogation and performing complex data analytics - turning data into insight.

Better understanding of network risk and resilience creates wide-reaching benefits for our clients; meeting leakage targets, reducing supply interruptions, and minimising issues with supply and restrictions, all while improving end user water quality and customer satisfaction.

WANDa decision support tool

Water Asset Network Distribution analysis

Visualise critical issues

WANDa manages the complete picture of risk and resilience across the whole clean water network without generating islands on information, providing far greater insight and network understanding to everyone, visually.

Better decisions... faster

Through intelligent interrogation and data manipulation, WANDa provides rezone options, identify all properties affected, and indicate an estimated repair time and resources required. The incident is fully understood within 10 minutes.

Optimise use of resources

Event Fingerprinting predicts performance and identifies the likely cause and location of the problem when very limited information is available, informing Operational Control Room actions to manage supply interruptions much more effectively.

Safeguard investment

WANDa can save money and even secure performance incentives; improved incident response and highlighting network resilience to secure funding for high risk assets or identifying programmes of preventative maintenance.

Supply Interruption Performance criteria decreases to 5 minutes by 2025. 

That's down from 12 minutes in AMP6; a target which already exhibited huge failures. 

The average underperformance penalty for AMP7 is nearly £800,000 per minute of interrupted supply. 

What would a 10-minute saving on every event mean for your performance?

How we can help 

Related case studies

Case Study
Mains renewal using WANDa for Severn Trent Water
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Case Study
Managing water company supply interruptions using Network Analysis
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Case Study
Network Analysis Tool developed for water company wide data analysis
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Network Analysis (WANDA) provides Severn Trent with the ability to quickly assess all of its clean water pipe network so that it can accurately examine the historic performance of these assets, their likelihood of future failure and the customer impact of that failure. This again provides powerful information which can be used to shape investment in mains replacement programmes.

Rob Murrell, Network Modelling Manager – Water Infrastructure
Severn Trent Water

Severn Trent’s understanding of both its local and strategic resilience has enabled investment to be more accurately targeted at areas of maximum benefit. Network Analysis provides a clear picture of cause and effect of asset failure and helps staff to understand what options it may have to mitigate customer impact.

Rob Murrell, Network Modelling Manager – Water Infrastructure
Severn Trent Water

With a loss of pressure across the DMA but no report of a burst, we used our Network Analysis Tool to replicate the conditions we could see on our alarms. The data we got back directed out DST's to the likely area the burst would be. Sure enough, the burst was within the area predicted. A great example of how Network Analysis is helping us diagnose and get the source of an event.

Network Controller
Severn Trent Water

Our mains replacement program for 2018- 2019 [utilising WANDA] was delivered in half the time with half the resources.

Mark Jones, Investment Planning Manager
Severn Trent Water

The new bespoke features on the Network Analysis tool [with] improvements dedicated to supply restoration [were demoed today]. With a couple of clicks, in seconds the tools are able to identify tankering injection locations that are hydraulically sound, mitigating potential for unwanted flow reversal, and meeting the requirements (parking 30,000 litre tankers within 2-way traffic management or less!). The new feature is also able to identify overlanders and over/underpumps which will streamline operations during protracted events enabling maintenance of a reactive presence more frequently. If that's not enough, the new features are able to aid post event evaluations; spot pressures taken on site can be input into the tool, then compare all properties against the CWDP data within the affected area and provides a report of what pressure each of the properties are receiving. This can be shown on a map and, using a rag status, we can have an instant visual of which properties are on supply, have poor pressure or off supply. Can’t wait to start reaping the benefits of using this [tool] both reactively and post event.

NRT Tool client

Related services

Leakage Strategy & Reduction
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Hydraulic Network Modelling
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Leak Detection Surveys
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Created by potrace 1.16, written by Peter Selinger 2001-2019

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James Tremlett

Principal Engineer

James has extensive experience working in the water industry, providing a varied skill base encompassing all aspects of water supply and distribution. He leads WRc's network analysis team; multi-disciplined engineers who help water companies to understand the performance of their entire network using WANDA software. James is responsible for all technical aspects including software architecture, methodologies, development, and bespoke outputs to meet stake holder requirements.

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