Anglian Water uses 'PREMIS' to monitor drought

Metasphere has just completed the supply and installation of two hundred (200) further Remote Telemetry Units (RTUs) for Phase lV of the PREssure Management Information System (PREMIS), Anglian Water Services' pressure monitoring programme.

Since the start of PREMIS in 2009, Metasphere has installed a total of eight hundred (800) of its battery MM3P units. Each phase has a five year contract which also includes installation, monitoring and maintenance. For Anglia Water Services, PREMIS represents an investment in pressure management worth in excess of £1million.

Each MM3P RTU is used to monitor a pressure point with data transmitted back to the Anglian Regional Telemetry System (ARTS), where it is used to identify areas of the network with high and low water pressure and enable better management of the network.

Tony Gammage, OMC infrastructure project manager at Anglian Water, said: "We cover a huge area with more than 37,600km of water mains serving 4.3 million customers across parts of nine counties. With such a large network there can be big variations in water pressure we need to keep track of.

"Pressure can drop at times of high demand and that is a particular challenge in areas where that pressure is already low. If we can better identify the areas most affected then we can adjust pressure accordingly and make sure customers aren't affected.

"By adjusting pressures in this way we can also reduce the wear and tear on pipes and other equipment caused when water pressure is higher than necessary. Reducing pressure in such cases may also allow us to pump less water into the system, saving on energy and carbon."

During the recent drought, Anglian Water was able to use PREMIS to model possible effects on its network.

Tony said: "The data we got from pressure monitoring proved very useful in measuring those potential effects. It also gave us the ability to make the network more flexible and responsive; moving water around in response to changing patterns of supply and demand."

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