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LYMPHATE INFRA PRIVATE LIMITED

         Phone: +91 7602196232

 

         Email: info@lymphate.com

Privacy Policy

NON REVENUE WATER(NRW)

Non Revenue Water Reduction Strategy

Non Revenue Water reduction & Leakage Detection is very important for proper management of a water utility and most countries have initiated leakage detection programmes to reduce water losses from pipelines. Establishment of district metering areas and sectioning the water distribution network is a strong tool to identify areas with most leakages and prioritise the efforts. Lymphate has developed a straightforward accounting and metering system that allows the water utility to manage the administration as well as providing web-based interface for customer service. Further, Lymphate provides a range of GIS-based software tools for pipeline registration, leakage registration, rehabilitation of pipelines and input for water supply planning.

 

The need to manage NRW better and protect precious water resources has become increasingly important. Non-revenue water (NRW) management allows utilities to expand and improve service, enhance financial performance, make cities more attractive, increase climate resilience and reduce energy consumption.Energy optimisation is another important measure to secure a well-functioning water utility. Establishment of pressure zones by setting up hydraulic model for the distribution system may significantly reduce pipe bursts together with reducing the energy consumption from pumps and booster stations.The planned operation and systematic maintenance of water treatment facilities can prevent most problems from occurring and provides our customers with the confidence to commit extra resources only where necessary.

 

 

 

 

Non Revenue Water is a critical performance measure that provides indicators of:

  • aging of the system

  • opportunities for improved efficiency

  • opportunities for improved financial performance/pricing.

Non-Revenue Water = System Input Volume – Billed Authorized Consumption

It is water that was treated but not billed to a consumer because of water losses or unbilled authorized consumption.

Water losses consist of real and apparent losses. Real losses are due to leakages and overflows in the distribution system up to the point of customer metering. Apparent losses are unauthorized consumption or metering inaccuracies.

Unbilled authorized consumption consists of water consumption that public policy exempts from paying rates such as water used for fire-fighting.

Several performance indicators can be computed with the non-revenue water. For example, the volume of non-revenue water as a percentage of system input volume can be used as a general financial indicator. The volume of the non-revenue water as a percentage of the annual cost of running the water system can also be used in cost benefit analysis.

Leak Detection

The need to manage NRW better and protect precious water resources has become increasingly important. Non-revenue water (NRW) management allows utilities to expand and improve service, enhance financial performance, make cities more attractive, increase climate resilience and reduce energy consumption.Energy optimisation is another important measure to secure a well-functioning water utility. Establishment of pressure zones by setting up hydraulic model for the distribution system may significantly reduce pipe bursts together with reducing the energy consumption from pumps and booster stations.The planned operation and systematic maintenance of water treatment facilities can prevent most problems from occurring and provides our customers with the confidence to commit extra resources only where necessary.

 

District Metered Area

Identifying NRW in district metered analysis. By grouping and aggregating data stored in an analytic software application, district metering can be performed via the following steps:

  • Identify the meter or meters that feed water into the DMA

  • Identify the group of meters & sensors in the district and aggregate the total consumption of these meters on an interval-by-interval basis. Accrue the aggregated consumption of the district into a virtual meter.

  • Compare the net  metered consumption of the aggregated district on a time-synchronized interval-by-interval basis. Any difference between the net consumption of the master meter and the aggregated consumption of the virtual meter is considered NRW, which can include leaks. 

Once the district metering area has been conducted and the analytics application has ranked the various districts according to severity, utilities can prioritize where to look for leaks. Some software applications allow the results of the district metering analysis to be viewed graphically by comparing the graph of consumption from the district meter with the graph of the aggregated consumption of the virtual meter, as indicated in 

Equitable Distribution & Pressure Management

Managing NRW is equitable distribution & pressure management. A small reduction in pressure can mean a significant reduction in real losses through leaks. When activated during low-demand periods such as late at night or early in the morning, pressure management will not affect service levels and can reduce consumption in networks with no intermediate storage. To effectively manage pressure, it is important to comprehensively evaluate a service area and gain an understanding of its background losses before introducing pressure control.

 

Equitable water distribution & pressure management program, a utility’s distribution system is broken down into flow & pressure zones.Flow & Pressure is monitored at the inlet, average zone point and the critical zone point. The average zone point is a location that exhibits the average pressure rate for the zone. The critical zone point is a location where pressure is the lowest, usually the highest elevation in the zone.The reduction of pressure greatly reduces the amount of night flow when the system is quiet.Night flow is reduced in conjunction with the reduction in pressure. The reduction of night flow reduces a utility’s amount of non revenue water without even repairing a leak.

 

Advanced Metering Infrastructure & Real time Data Analytics

With some AMI systems, a tamper flag is sent whenever the connection between the meter and meter interface unit is opened. More specifically, a communication module takes a consumption reading each hour, at the top of the hour, and places this reading into its memory. When this reading is taken, the module can detect if there is no connectivity to the meter register; and if this occurs, the communication module marks this account as having a potential tamper and includes a “tamper flag” with its next data transmission.  

This data passes through the AMI collection engine and is accumulated in a data repository where tamper, leak and other data can be viewed in the user interface. The user has the ability to view the trended minimum consumption values over time (i.e., the “leak line”) to see when the potential leak or tamper began, whether it is improving or getting worse, and the day that it ultimately was resolved.  When reported over time in this way, accounts with higher incidents of theft and related NRW may be spotted for further investigation. 

 

 

 

 

 

 

SERVICES

  • Non Revenue Water Assessement

  • Satellite Based Leak Detection

  • Non Revenue Water Reduction Strategy

  • Water resource identification

  • Water Audit

  • Bulk & Consumer Metering

  • District Metered Area

  • Advanced Metering Infrastructure 

  • Water quality and water chemistry

  • Surface water intake management

  • Well field optimisation and 3D groundwater modelling

  • Water supply treatment processes

  • Water distribution and water networks

  • Setting district metering areas

  • Hydraulic modelling

  • Pressure zones and energy optimisation

  • Leakage reduction

  • Non-revenue water management

  • GIS and web-based solutions

  • SaaS based IoT Platform

  • Accounting system for utilities

  • Assets management

  • Pipeline rehabilitation

  • Water supply management and strategic planning

  • Support to operation and maintenance

  • Reusing of rainwater water sources

  • Emergency planning

  • Emergency support during drinking water contamination

  • Low cost/high value data management solution

  • Seamless integration with corporate GIS and SCADA servers

  • Easy access to download and summarise all available data

  • User-friendly geospatial interface

  • Customisable platform any level of the application

  • Facility automation

  • Master planning

  • SCADA Automation

  • Integrated security and emergency preparedness

  • Smart grid 

  • Real-time data integration and visualization

  • Water information management

OTHER SECTORS