WONE WATER OPTIMIZATION FOR NETWORK EFFICIENCY LISBON CASE STUDY FOR WATER LOSS CONTROL & NETWORK MANAGEMENT

Transcription

1 WONE WATER OPTIMIZATION FOR NETWORK EFFICIENCY LISBON CASE STUDY FOR WATER LOSS CONTROL & NETWORK MANAGEMENT

2 AGENDA 1. WHAT IS EPAL? 2. NON-REVENUE WATER SITUATION & STRATEGY ADOPTED 3. METHODS DEVELOPED 4. CASE STUDY 5. RESULTS & CONCLUSIONS

3 WHAT IS EPAL? Origins in years of history Bulk Supply to around 2.8 million people in 34 municipalities in and around the Lisbon area Lisbon Direct Supply to domestic and commercial customers within the City of Lisbon With over 700 employees, EPAL is the largest water supplier in Portugal with a net profit of 44 M and a turnover of 144 M in 2012 Production capacity m 3 /day

4 WHAT IS EPAL? PRODUCTION & BULK SUPPLY SYSTEM 2 Water Treatment Plants 710 km Trunk Mains 25 Chlorination Points 41 Pumping Stations 42 Water Tanks CASTELO DO BODE ETA de Asseiceira ETA de Vale da Pedra OTA VALADA TEJO ALENQUER LEZÍRIAS CITY OF LISBON DISTRIBUTION SYSTEM Clients Customers m3 Daily Demand km Distribution mains 5 Pressure Zones

5 AGENDA 1. WHAT IS EPAL? 2. NON-REVENUE WATER SITUATION & STRATEGY ADOPTED 3. METHODS DEVELOPED 4. CASE STUDY 5. RESULTS & CONCLUSIONS

6 NON-REVENUE WATER SITUATION Mm % 25% 20% 15% 10% 5% % Transport System Distribution Network Total % NRW Transport System % NRW Distribution Network Millennium Challenge; Annual volume of NRW stabilized around 50 million m 3 Water losses predominantly within the Lisbon distribution network OBJECTIVE To reduce NRW in Lisbon distribution network from around 25% to sustainable levels of less than 15% within 3 years

7 ADAPTED NON-REVENUE WATER STRATEGY Network Segmentation & continuous telemetry monitoring Development of simple & effective data analysis systems Leak Detection Target definition & Result validation Optimization of Active Leak Control activities Focus on what is essential and control costs Water losses within distribution systems are a global problem, but they must not been seen as inevitable.

8 AGENDA 1. WHAT IS EPAL? 2. NON-REVENUE WATER SITUATION & STRATEGY ADOPTED 3. METHODS DEVELOPED 4. CASE STUDY 5. RESULTS & CONCLUSIONS

9 4 PHASES TO IMPROVE KNOWLEDGE OF THE NETWORK AND REDUCE NRW DMA PLANNING & SET UP Design DMA boundary & validate Create metering points & telemetry Neutral impact DMA Implementation CONTINUOUS MONITORING Recording of pressure & flow Passive system with active alarms DATA ANALYSIS Integration in analysis software Performance Indicators Surgical Control of leakage INFORMATION & REPORTING DMA Proposals & Reference Manuals DMA Analysis & Audit Project Reports

10 DMA IMPLEMENTATION PROJECT Create 153 Independent DMAs with an average of clients & 8 km of mains Monitor around km of the network & more than 98% of clients 350 network metering & telemetry systems continuously monitoring flow & pressure

11 DATA INTEGRATION APPLICATION Telemetry GIS G/InterAqua SCADA Automatic Meter Reading Client Management AQUAMATRIX Calculate Practical Performance Indicators for Management & Assessment of Water Distribution Networks

12 WONE APPLICATION Simple Cloud-based Interface via Intranet or Internet Responds to requirements for varying Areas & Activities Interface with other Management Systems LEAKAGE MANAGEMENT KPI Statistic calculation & Graphic presentation Alarm & Alert Integration Easy adaptation & Development PERFORMANCE RANKING SYSTEM ALARM MANAGEMENT

13 WONE APPLICATION Principal Web Access Dashboard DMA Totalvia DMA & smartphone Interface with& Consumption Performance tablet to support key Minimum Table &staff Alerts field management Nightline information

14 WONE APPLICATION Tendency Analysis for Daily Total Easy Daily & Identification Minimum of Nightline New Leaks

15 WONE APPLICATION MACRO LEAK LOCATION LEAK REPAIR VALIDATION QUANTIFICATION

16 AGENDA 1. WHAT IS EPAL? 2. NON-REVENUE WATER SITUATION & STRATEGY ADOPTED 3. METHODS DEVELOPED 4. CASE STUDY 5. RESULTS & CONCLUSIONS

17 CASE STUDY: DMA 1060 DMA Analysis Project Methodology: Office work: DMA Performance & net volume analysis Demand characterisation for large users Fieldwork Find n Fix: DMA boundary valve validation Leak Detection Correlation & Ground microphones Step-Tests & temporary DMA Alterations Leak Repair & Validation of results Leak location registered on GIS Recoverable Night Flow 130 m 3 /h

18 CASE STUDY: DMA 1060 Critical Area old Alcântara roundabout Daily Flow and Pressure Profile Water Loss equivalent to m3/year Flow (m 3 /h) Pressure (m) Repair

19 AGENDA 1. WHAT IS EPAL? 2. NON-REVENUE WATER SITUATION & STRATEGY ADOPTED 3. METHODS DEVELOPED 4. CASE STUDY 5. RESULTS & CONCLUSIONS

20 RESULTS & CONCLUSIONS 25,0% 24,5% 23,9% Mm 3 32,04 30,55 30,42 23,5% 26,93 20,2% 23,41 17,2% 19,41 14,8% 13,5% 11,8% 16,25 15,40 13,97 10,0% 8.7% 11,13 9, CO 2 EMISSION SAVINGS REDUCED CHEMICAL USAGE REDUCED ENERGY CONSUMPTION Cumulative effect of Network Rehabilitation Project & Active Leakage Control Better management & Increased business efficiency Increasing challenge for leak detection as NRW gets lower Rationalization of investments & Cumulative Savings of around 10M Reduced chemical usage ( 0,7M) & Energy Consumption ( 4,6M) ton less CO2 emissions since 2005

21 RESULTS & CONCLUSIONS 70,0% 60,0% 50,0% 40,0% WONE has contributed to an improvement in EPAL s efficiency and these positive results are obtainable in other countries and other contexts because we all have the same challenge 30,0% 20,0% 10,0% 0,0% Source: SWAN Smart Water Networks Forum (2011)

22 RESULTS & CONCLUSIONS Water loss reduction brings significant gains in terms of efficiency levels and positive implications for all stakeholders; Clients, Company, Regulator and shareholders: ENVIROMENTAL Reduced water abstraction,& energy usage Reduced reagent consumption & CO2 emissions ECONOMIC AND FINANCIAL Rationalization & deferral of investments SOCIAL Increased business efficiency for net financial gains Added client value through tariff moderation To be effective tomorrow, we need to be efficient today System Diagnosis & Optimization Efficient & Adaptable Water Resource Conservation & Sustainability Promoting Proactive Management Active Performance Monitoring Improved Network Knowledge

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