When looking at the features of an AMI system, utilities should consider the benefits of pressure management analytics, says Joe Ball, director of water solutions marketing for Itron, Liberty Lake, WA. “A pressure management system can be helpful because some utilities have an issue with pressure zones,” explains Ball. “It’s tough to maintain a perfect pressure when there could be issues such as elevation and demand on the network. So the pressure has to be monitored throughout the day. But some utilities end up running the pressure at a higher rate, and it’s very hard on the network infrastructure, especially if there are leaks and cracks. The pressure fluctuates throughout the day and it puts a lot of strain on the network. And it increases the potential for larger leaks.”Pre-conference workshops Repairing Entrenched, Incised, and Degraded (Urbanized) Streams – Techniques and Case Studies Monday August 28, 2017 and BMP Selection to Improve Your Watershed Monday August 28, 2017. You may register for these without also registering for the annual conference. Download the StormCon Conference Program here.
Itron’s system allows for pressure monitors and sensors at multiple sites in a pressure zone, and features a control mechanism that analyzes existing pressure and adjusts the controls to optimize the pressure throughout the day. Ball adds, “In the past, you had to send a workman out to take a pressure reading. But today you can utilize sensors to tell you the pressures from the AMI network, and you get much more frequent data in a granular format. So instead of just saying we need a certain pressure for that critical zone, the analytics can tell you that you don’t have to keep it that high. It monitors pressure fluctuations and helps save the infrastructure.”
With Itron’s analytic solution, a utility can group all of the customers in a district into a pressure zone and compare the consumption at their meters, with the amount of water running through the district meter. Acoustic leak sensor data can be added, so if there’s a district that has a variance, the additional data can pinpoint potential distribution leaks in that particular district. The results of the comparison is to identify leaks and the volume of lost water, so the utility can prioritize their maintenance strategy.Add Stormwater Weekly and Water Efficiency Weekly to your Newsletter Preferences and keep up with the latest articles on water: green infrastructure, smart meters, stormwater drainage and management, water quality monitoring and water treatment.