daily and real time monitoring of non revenue water · daily and real time monitoring of non...

Daily and Real Time Daily and Real Time yyMonitoring of Non Revenue Monitoring of Non Revenue

WaterWater

Joaquim Poças MartinsJoaquim Poças Martins

[email protected]@[email protected]@gmail.com

IWA Water Loss 2010 – São Paulo, Brasil

M l l F l ’ Bl Ski P lMalcolm Farley’s Blue Skies Pannel (London, 2010)

The best future water supply systems:• Will not leak (Dennis Dellow) • Will last for more than one hundred years• Wll be monitored/controlled in real time• Will have full AMR

Estimating the ELL and defining a strategy to reach it

JPM IWA Water Loss JPM IWA Water Loss 2010 2010 S.PauloS.Paulo 22

Are we solving the wrongAre we solving the wrong problem?p

JPM IWA Water Loss 2010 JPM IWA Water Loss 2010 S.PauloS.Paulo 44

This system:This system:

Will leakIt will be difficult to know when/where it isIt will be difficult to know when/where it is leakingWill t l t 100Will not last 100 years… but it is cheaper, faster and easier to but t s c eape , aste a d eas e tobuiild it this way (in the short run)


PORTOPORTO


Change Management

AGUAS DO PORTO(400,000 ep)

October 2006 May 2009

System Input Volume(m3/day) 104,000 69,000

Revenue Water 48 000 48 000Revenue Water(m3/day) 48,000 48,000

Non-Revenue Water(%) 54% 30%

(with very little investment)

Non-Revenue Water(m3/day) 56,000

22,000

(savings of M€ 4.0 /year, 10% of the annual turnover)tu o e )

FunctionsWater Supply +

Sewerage+ Wastewater Treatment

Water Supply + Sewerage+ Wastewater Treatment+ Stormwater + Stream

Rehabilitation+ Beaches

Tariff Increases n.a. 0% in 2007, 2.75% in 2008, 1% in 2009

Number of Workers 574 498


Number of Workers 574 498

Net results- M€ 3.5

(Loss)

+ M€ 1.0

(Profit)

Water Loss Halved in 8 Months


Minimum Night Flow


Reduction of Water LossReduction of Water LossReduction of Water LossReduction of Water Loss

SIVSIV

NRW

m3/year

NRW

RW

Time


Reduction of NRWReduction of NRWImpact on the Annual ResultsImpact on the Annual Results

RW (m3/d)RWRW ++RWRWffSIVSIVii

RWRWii ++00

nX €/m3

X €/ 3SIVSIV X €/m3

(m(m33/d/d))SIVSIVff

+Y +Y €€/year/year


--

Alternative Paths to Reduce Non-Revenue Water and the Respective ImpactNon Revenue Water and the Respective Impact

on the Annual ResultsSystem Input Revenue Water (m3/day)System Input

Volume (m3/day)

Revenue Water (m3/day)

48 000 50 000 52 000 55 000

104 000 0 0 1 1 2 2 3 854%

35%

42%

104 000 0.0 1.1 2.2 3.8

86 000 2.0 3.1 4.2 5.8

80 000 2 7 3 8 4 9 6 5

36%

31%80 000 2.7 3.8 4.9 6.5

75 000 3.2 4.3 5.4 7.1

70 000 3 8 4 9 6 0 7 629%

20%

15%

70 000 3.8 4.9 6.0 7.6

65 000 4.4 5.4 6.5 8.2

60 000 4 9 6 0 7 1 8 760 000 4.9 6.0 7.1 8.7

56 000 5.4 6.5 7.5 9.2


IWA Standard Water BalanceIWA Standard Water BalanceIWA Standard Water BalanceIWA Standard Water Balance

Authorized

RevenueWater

BilledAuthorized

Consumption

Billed Metered Consumption

Billed Unmetered ConsumptionConsumption

Consumption

UnbilledAuthorized

Consumption

Billed Unmetered Consumption

Unbilled Metered Consumption

System

Input

VolumeNon

Revenue

Consumption

Apparent (commercial)

Unbilled Unmetered Consumption

Unauthorized Consumption

C t M t I i dVolume Revenue

Water

(commercial)Losses

Customer Meter Inaccuracies and Data Handling Errors

Leakage on Transmission andDistribution Mains

Water

LossesReal

(physical)Losses Leakage on Service Connections

t i t f C t M t

Leakage and Overflows at Storage Tanks

Losses


up to point of Customer Meter

Reduction of Water LossReduction of Water LossReduction of Water LossReduction of Water Loss

Authorized

RevenueWater

BilledAuthorized

Consumption

Billed Metered Consumption

Billed Unmetered ConsumptionConsumption

Consumption

UnbilledAuthorized

Consumption

Billed Unmetered Consumption

Unbilled Metered Consumption BBILL

System

Input

VolumeNon

Revenue

Consumption

Apparent (commercial)

Unbilled Unmetered Consumption

Unauthorized Consumption

C t M t I i d

B

TVolume Revenue

Water

(commercial)Losses

Customer Meter Inaccuracies and Data Handling Errors

Leakage on Transmission andDistribution Mains

Water

Losses

M

4Real

(physical)Losses Leakage on Service Connections

t i t f C t M t

Leakage and Overflows at Storage Tanks

Losses

RR

RREDUCE


up to point of Customer Meter RR

Strategy for Real Losses Strategy for Real Losses Reduction Reduction

PRESSURE MANAGEMENT

SPEED AND QUALITY OF REPAIRS

ACTIVE LEAKAGECONTROL

UNAVOIDABLE

RECOVERABLE

PIPELINE AND ASSETS

MANAGEMENT:RENEWAL


RENEWAL, REPLACEMENT

Strategy for Apparent Losses Strategy for Apparent Losses Reduction Reduction

CUSTOMER METER

INACCURACY

UNAUTHORIZED CONSUMPTION

(THEFT)

DATA TRANSFER

ERRORS

UNAVOIDABLE

(THEFT) ERRORSRECOVERABLE

DATA ANALYSISERRORS


ERRORS

Priority MeasuresPriority Measures

1 IWA W t B l1. IWA Water Balance2.Repair all visible leaks3.Universal billing/metering4.Control room4.Control room5.Monitoring and telemetry6 Pressure control6.Pressure control7.Active leakage control teams8.Fast repair teams


MeasuresMeasuresMeasuresMeasuresTypes of water loss Measures 1 Measures 2 Measures 3 Measures 4Types of water loss

(from Water Balance)Measures 1 Measures 2 Measures 3 Measures 4

Water loss in pipes (leaks and bursts) Pressure control Fast repair of l k d b

Active Leakage C l

Replacement f ileaks and bursts Control of pipes

Water loss in connections (leaks and bursts)

Pressure control Fast repair of leaks and bursts

Active Leakage Control

Replacement of pipes

Water loss in storage tanks Detect and prevent overflows

Repair of water tanks

Water loss due to metering errors (old Local Inspection of Replacement of meters) meters meters

Water loss due to unauthorized consumption (theft)

Local Inspection

Water loss due to unbilled, unmetered Installation ofWater loss due to unbilled, unmetered consumptions (watering public gardens, street washing, …)

Installation of meters and bill

Water loss due to unbilled, metered Bill


consumption (free water)

Reduction of Water Losses

35 000

40.000

Accumulated Savings

100 000 000 €

20.000

25.000

30.000

35.000

m3/

d

40.000.000 €60.000.000 €80.000.000 €

100.000.000 €

€

0

5.000

10.000

15.000

0 €20.000.000 €

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

YearsReal losses Apparent Losses NRW

YearsReal Losses Apparent losses NRW

SIV and RW (€/year)

30000000

40000000

Savings due to the reduction of NRW

6.000.000

7.000.000

0

10000000

20000000

30000000

1 000 000

2.000.000

3.000.000

4.000.000

5.000.000

€/ye

ar

00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Ye a r sSIV - System Input Volume RW - Revenue water

0

1.000.000

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

YearsReal losses Apparent Losses NRW


Case study Case study ––yyAldoarAldoar

400 Clients with AMR


Leakage Control DMADMA

Flow variation (m3/hour) – Max, Average and Min

burst burst


Real time monitoring ofReal time monitoring ofReal time monitoring of Real time monitoring of SIV and RWSIV and RW

10

56789

12345

Consumption

TotalizerSIVRW

0

4-5-

10 1

9:0

5-10

22:

005-

5-10

1:0

05-

5-10

4:0

05-

5-10

7:0

05-

10 1

0:00

5-10

13:

005-

10 1

6:00

5-10

19:

005-

10 2

2:00

6-5-

10 1

:00

6-5-

10 4

:00

6-5-

10 7

:00

5-10

10:

005-

10 1

3:00

5-10

16:

005-

10 1

9:00

5-10

22:

007-

5-10

1:0

07-

5-10

4:0

07-

5-10

7:0

05-

10 1

0:00

5-10

13:

005-

10 1

6:00

5-10

19:

005-

10 2

2:00

8-5-

10 1

:00

8-5-

10 4

:00

8-5-

10 7

:00

5-10

10:

005-

10 1

3:00

5-10

16:

005-

10 1

9:00

5-10

22:

00

14 14- 15 15 15 15-

15-

15-

15-

15- 16 16 16 16-

16-

16-

16-

16- 17 17 17 17-

17-

17-

17-

17- 18 18 18 18-

18-

18-

18-

18-


Our ancestors installed pipesOur ancestors installed pipes that lasted over 100 years

How long will last the onesHow long will last the ones we are installing now?


Replacement of Victorian water Replacement of Victorian water mainsmains


Replacement of pipesReplacement of pipesp p pp p p


Trenchless pipe replacementTrenchless pipe replacementReliningRelining


Th b t t l tThe best water supply systems:Will not leak Will l t f th h d dWill last for more than one hundred yearsFull AMR, monitored in real time, meters with no moving parts lasting much longermoving parts, lasting much longerAll the water measured and billed

…but we still will have to live with many sub-…but we still will have to live with many suboptimal ones, for many years, in many parts of the world


daily and real time monitoring of non revenue water · daily and real time monitoring of non...

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