introduction to non-revenue water concepts and definitions · 45 million m3 of drinking water are...
TRANSCRIPT
![Page 1: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/1.jpg)
Regional Workshop on “Capacity Development, Water Operators’ Partnerships and Financing for Non-revenue Water Management”
7-9 July 2014, Dushanbe, Republic of Tajikistan
Introduction to Non-revenue Water concepts and definitions
![Page 2: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/2.jpg)
WLR: A Key Issue of Water Management
WATER21, June 2008, p. 48
Reducing WLR in low and middle income countries to just half the current level would deliver the following benefits:
• 11 billion m³/a would be available to water customers
• 130 million people more could again access public water supply
• water utilities would gain US$ 4 billion of self-generated cash flow
UN-U Bonn, September 3rd, 2008
• world population 6.1 billion
• 0.5 billion living in water deficit areas
• 1.2 billion lack access to safe drinking water
• > 50 % living in urban settlements
• > 50 % WL in many towns, mega-cities
![Page 3: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/3.jpg)
45 million m3 of drinking water are lost in the world’s water systems every day!!
•… this quantity could serve nearly 200 million people
• 1/3 of the water is lost in developing countries
• 20-50% loss (even more in some cases) of produced water
In many of the 21 megacities (>10 million): 250-500 million m3 are lost or not paid for…
![Page 4: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/4.jpg)
![Page 5: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/5.jpg)
Water Loss Figures from Different Countries
Source: BGW 2004 u.a.
up to 90 %
37%
29% 27%25%
9%
0%
10%
20%
30%
40%
Developing
Countries
Bulgaria UK Italy France Danmark Germany
Water losses in %
<8%
Bulgaria
![Page 6: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/6.jpg)
Technical aspects of NRW • New and low-cost techniques for leak detection, strategies for continuous remote control in monitoring and metering are available
• Wide gap between availability of technologies and management tools for their application
• Benefits by flow metering and pressure measurement (reduction of costs, risk prevention, water saving, longer lifetime, water quality control,…)
• Costs of failures from leaking or collapsing pipe network exceed savings in expenses for structural maintenance and rehabilitation
Zone 2
Zone 1
Zone 3 Zone 4
![Page 7: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/7.jpg)
Times Change, and so does the (assumed) WL-Optimum!
Whereas ± 15 % WL have been assumed the economic "Optimum" during
the past decades,
the updated, a present "Optimum“ is significantly lower
(depending on local conditions)
→ because of increased costs for supplied water (production + distribution), especially power
→ because of improved technologies for WLR (leak detection, trenchless rehabilitation, automated metering, asset management etc.)
→ because of increased regional shortages and increased vulnerability to system failures and surplus damage of WL
![Page 8: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/8.jpg)
The Cost Hierarchy of Water Production
€/m³
easy medium difficult ReUse DeSal
0.2
0.5
0.8
1.0
1.2
conventional technologies
specific consumption
urban growth
degradation of resources
![Page 9: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/9.jpg)
Surplus Economical Damage - Technical
SF
Sanierungsstau (S) und Folgeschäden (F) (qualitativ)
DM
ND 0 5 10 15 20 25 30 35 40 45 50
Sanierungsstau
year
$
SF
Sanierungsstau (S) und Folgeschäden (F) (qualitativ)
DM
ND 0 5 10 15 20 25 30 35 40 45 50
Sanierungsstau0 4 6 9 12 15 18 21 24 27 40
Surplus Costs for delayed action: Surplus Costs for delayed action:
Accidents, foundation destabilisation, road collapse, wetting of buildings,
tree and greenland damage, flooding, diseases,
clean up costs,
and ST surplus,
emergency surplus costs,
appliances etc.,
groundwater contamination,
![Page 10: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/10.jpg)
Spectacular BURST LEAKAGE Bursts are large, reported fairly quickly and therefore do not leak for long
![Page 11: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/11.jpg)
WLR, rehab in time might have saved money!
![Page 12: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/12.jpg)
Surplus Costs: Reduced Lifetime of Buildings
![Page 13: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/13.jpg)
Surplus Costs: Accidential Damages
![Page 14: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/14.jpg)
Surplus Costs: Erosion
![Page 15: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/15.jpg)
Surplus Costs: Surface Washout plus Accidential Damage
![Page 16: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/16.jpg)
Surplus Economical Damages through WL
ADMINISTRATIVE LOSSES
• excessive consumption Soweto Washing Machine
• illegal water trafficking Cochabamba
• unwillingness to pay / to charge Saigon central
financial destabilisation of Water Utilities
non-sustainable water services!
![Page 17: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/17.jpg)
Admin Losses: Illegal Connections
![Page 18: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/18.jpg)
Admin Losses: Illegal Connections
![Page 19: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/19.jpg)
Admin Losses: Illegal Connection
![Page 20: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/20.jpg)
Admin Losses: Illegal Connections
![Page 21: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/21.jpg)
Over 80 % of Pipe Network Invisible to the Public
![Page 22: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/22.jpg)
Why WLR is not PR-attractive
• WLR activities are either invisible to the public, or disturbing.
• Today's politicians will be made responsible for costs & disturbances of WLR, whereas the benefits are for tomorrow.
• Serious "package solutions", for easy handling by the client, are not yet strong on the market.
• Lobbying powers are focused rather on large investments (desalinations, dams), than on WLR as business target.
![Page 23: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/23.jpg)
What CEO‘s from Large Water Utilities,
responsible for mio 22 customers in 4 regions worldwide, consider as
success factor for water efficiency
between very high (1) and less important (5) [IEEM, survey IV 2009]
![Page 24: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/24.jpg)
What CEO‘s from Large Water Utilities,
responsible for mio 22 customers in 4 regions worldwide,
consider as pre-condition for good utility management
in priority ranking, from lowest (5) to highest (1) [IEEM, survey IV 2009]
1. Know-How ( Capacity Development)
2. Technologies ( adapted, appropriate)
4. Political Support ( empowered decisions, execution)
5. Budget ( must cover necessary
activities)
![Page 25: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/25.jpg)
For the implementation of WLR
(long-lasting activity, not fixed to one location,
installations as well as operational measures on-site decisions needed
interactive planning unavoidable)
the role of Capacity Development
is of very high priority.
Once, the know-how is there,
and sustains, the other restrains can be resolved,
successfully !
![Page 26: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/26.jpg)
Treatment Works Network Assets
Service Levels
Revenue Collection
Investment Strategy
Year 1
Stakeholder
returns
![Page 27: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/27.jpg)
Network Assets
Service Levels
Revenue Collection
Investment Strategy
Year 2
Treatment Works
Stakeholder
returns
![Page 28: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/28.jpg)
Network Assets
Service Levels
Revenue Collection
Investment Strategy
Year 3
Treatment Works
Stakeholder
returns
![Page 29: Introduction to Non-revenue Water concepts and definitions · 45 million m3 of drinking water are lost in the world’s water systems every day!! •… this quantity could serve](https://reader030.vdocument.in/reader030/viewer/2022040904/5e77ff67017ac47329547b5d/html5/thumbnails/29.jpg)
Political and administrative aspects of NRW
• Financial and technical assistance complement each other (infrastructure and capacity development) in water loss reduction programs
• Introduction of commercial accounting systems and financial management
• Framework conditions can be improved through decentralisation and commercialisation (e.g. procurement, financial autonomy)
• Culture of collaboration and partnership to strengthen efforts to control corruption and to build up confidence in the water management
• Developing ownership and corporate identity at the top management of water authorities to be backed up with level of ownership within staff of water companies and consumers