Ithriam Leukes Water Business Development Manager / Agent South Africa
Holistic NRW Reduction Solution
Losses Segmentation Apparent Losses represent 34% of overall losses REAL LOSSES Calculated by substraction, mid uncertainty (+/- 17%), High investments UNAUTHORIZED CONSUMPTION Estimated, high uncertainty (+/- 50%) 100% 90% 80% 70% 60% 50% 40% 30% METER INACCURACIES AND DATA ERRORS Estimated, high uncertainty (+/- 30%) Low investment UNBILLED AUTHORIZED CONSUMPTION Estimated, high uncertainty (+/- 50%) 20% 10% 0% Volume (%) BILLED AUTHORIZED CONSUMPTION Measured, low uncertainty (+/- 2%)
Non Revenue Water Authorised consumption Billed authorised consumption Unbilled authorised consumption Billed metered consumption Billed unmetered consumption Unbilled metered consumption Unbilled unmetered consumption Revenue Water Water losses Apparent losses Unauthorized consumption Metering inaccuracies Data handling errors Leakage transmission & mains Non Revenue Water Non Revenue Water Real losses Leakage & overflows at utility storage tanks Leakage on service connections up to point of customer metering
Itron Proposed NRW Projects Mainframe Current Situation Strategy & Project Apparent Losses Real Losses Utility Current Data & Workflow Define Strategy to reduce losses Apply strategy in clear project Scope Project to reduce apparent losses Pressure Management DMA Management
New Service for Apparent Losses Dedicated team to secure the water utility revenue Coordinate field activities for loggings, replacement Monitor results and progress Plugged to the billing software getting meter reading value For security, not computing resources of the billing server Everyday use of tools for: CHECKING data readings CALCULATING metering efficiency IMPROVING efficiency by managing sizing and replacements
Reminder Not even the most powerful software in the world can replace a good meter to report consumptions. Garbage IN Garbage OUT
Who will be impacted by NRW Projects? The Consumer Metering Department Field teams Organizational & Workflows NRW Reduction teams Management
What defines the Strategy Itron and Utilities Worked Together Based on Utility priorities Based on country / region priorities Based on resources available Mutual experiences project cross analysis Leading to scenarios based on where actions are most critical
Terminology Flow Rate = Volume per time Accounted Volume = Quantity registered by meter Real Volume = Real quantity consumed Meter Error = Accounted Vol. Real Vol. [%] Real Volume
Water Meter Sensitivity SENSITIVITY => Depends on manufacturer Legal flow range for utilization Error % +5% +2% Real (E = 0%) -2% -5% Qs Q1 Q4 Flow Rate (m3/h)
Apparent Losses - From where to start solving seriously some serious issues Eliminating Metering Errors that comes from Aging (small meters) Innapropriate meter installation Meter oversizing (large meters) Impact of customer s in-house installation (tanks vs direct feed) Meter out of service (blocked)
Apparent Losses - From where to start solving seriously some serious issues Eliminating Unauthorized Consumption cases Meter by-pass and other frauds Additional unregistered connections Disconnected customers illegally reconnected Non-active customers illegally reconnected Unregistered (illegal) connection Unregistered consumption in low income areas Water theft on hydrants or other equipment Eliminating estimation errors in unmetered consumption Image Source: Consolidated Utility District
Smart Meter Choice The choice of meter type that fits in the type of installation Single Jet/ Multijet type meters need to be installed in horizontal position to measure properly. (e.g. Flodis/ Unimag/ Multimag/ MSD) Volumetric & Static type meters can be installed in any position to measure properly. (e.g. Aquadis+/ X61)
Smart Meter Choice New Meter Extra-Dry Liquid filled Wet Meter after certain time in service
Itron opens the eyes Netherlands Rotterdam Project Metering Points
Itron opens the eyes Netherlands Rotterdam Project Metering Points
Before anything else, a meter is not a commodity, but an information generator.