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IBM Smarter Cities Challenge City of Tucson Award Recipient for 2013 November 14, 2012. Background Available Water Supplies. Colorado River. Alan Forrest Director, Tucson Water. Renewable Water Supplies. Colorado River Allocation Recycled Water “Other” Water Supplies. Rocky Mountains.

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background available water supplies
BackgroundAvailable Water Supplies

Colorado River

Alan ForrestDirector,

Tucson Water

Renewable Water Supplies

  • Colorado River Allocation
  • Recycled Water
  • “Other” Water Supplies

Rocky Mountains

Santa Cruz River

Tucson Water Supply

In Channel Recharge

Finite Water Supplies

  • Groundwater
  • Stored Colorado River Water

Reclaimed Water

background extensive complex system covering a large area with a relatively low population density
BackgroundExtensive & Complex System Covering a Large Area with a Relatively Low Population Density

System

~107,000 AF

120,000,000 KWH

4.200 miles of water mains

~ 800,000 Customers

225,000 Metered Services

212 Production Wells

~65 Water Storage Facilities

~100 Boosters

22,000 Fire Hydrants

80,000 Valves

Tucson Water

Potable Water System

Tucson City Limits

Potable Water Lines (2” - 96”)

Tucson

Miles

0

5

10

background extensive complex system covering a large area with a relatively low population density1
BackgroundExtensive & Complex System Covering a Large Area with a Relatively Low Population Density

Tucson Water

Potable and Reclaimed

Water Systems

System Demands

Average Day: 15.6 MGD

System

165 miles of piping

4 Production facilities

6 storage reservoirs

8 booster stations

Landscape irrigation on:

18 Golf Courses

65 Schools

50 Parks

726 Residential

137 Commercial

3 Others

Tucson City Limits

Reclaimed Water

Potable Water Lines

Tucson

Tucson

Miles

0

5

10

tucson water challenges
Tucson Water Challenges

Coordinating technology improvements in water metering and SCADA upgrades for better customer service.

  • Utilize Advanced Metering Infrastructure (AMI) technology to increase efficiency in measuring water use
  • Further conservation by giving easy access for customers to daily water demand information
  • Implement SCADA upgrades to enhance water operations and energy efficiencies

Sandy Elder

TW Deputy Director

advanced metering infrastructure ami
Advanced Metering Infrastructure (AMI)
  • Tucson Water (TW) has ~225,000 water meters. ~50,000 meters have drive-by automatic meter reading (AMR) hardware.
  • AMR offers flexible upgrades from drive-meter to a fixed network AMI system.
  • All manually read (walk-by) meters will be converted to AMR over a ten-year capital improvement project.
  • TW intends to prepare an AMI Strategic Plan that presents the costs and benefits of various approaches to reading water meters and establishes the business case for implementation of recommendations.
project details driving forces for implementing water utility ami
Project DetailsDriving Forces for Implementing Water Utility AMI
  • Water loss reduction and revenue recovery (leak detection and auditing)
  • Improvement of customer service issues (ability to respond to calls and complaints)
  • Promote water conservation
    • comparative use plots among neighbors
    • innovative incentive programs to encourage changing time of appliance or irrigation to reduce peak water and energy consumption
  • Reading frequency versus perceived cost of water and wastewater bills
  • Cost reduction in traditionally labor intense areas (manual meter reading)
  • Improved meter asset management

Monitor your water use in “real time”

data challenges
Data Challenges
  • New AMI systems must interface with existing utility systems, including CIS applications
  • New AMI systems must peacefully coexist with multiple meter data collection technologies with diverse reading requirements
  • AMI systems produce high volumes of data for both billing and analytic purposes
project details what is scada
Project DetailsWhat is SCADA?

SCADA:

Computer system that monitors and controls processes of physical assets at multiple sites over large distances. Processes include water pressures, flows, reservoir levels and energy use

Master Station Computer

Water Operator

City IT Infrastructure

Water Main

Booster Pump

Water Main

Radio Tower

Water System

RTU’s

project details supervisory control and data acquisition scada systems
Used to operate system assets of over 350 sites from production, transmission, storage, pumping, and distribution to services.

Produces 12 Gigabytes of data yearly. (approx)

Data used for regulatory compliance, cost analysis, system planning

Project DetailsSupervisory Control and Data Acquisition (SCADA) Systems
project details why upgrade scada
Project DetailsWhy upgrade SCADA?
  • System installed 1984
  • Last upgrade in 2001
  • Technology has changed
  • Installed software/hardware at End-of-Life
  • Required functionality greater than installed system capabilities
project details scada opportunities
Project DetailsSCADA Opportunities
  • Connecting customer demand data with water process control data
  • Scheduling water pumping to match customer demand to save energy by conducting a mass balance over time
    • Central to forecasting demands to determine system operations or react to current conditions
  • Identify occurrences of leaks and breaks by comparing withdrawals with monitored system inflows
  • Tracking system changes in:
    • Pump characteristic and efficiency curves over time for:
      • Re-calibrating pump curves and
      • Predicting pump/motor failure or impending need for repairs to maintain efficiencies and lower energy consumption/cost.
concept issues and questions
ConceptIssues and Questions
  • Customer acceptance – Use
  • Scalability – Magnitude/complexity of system
  • Data management – System architecture
  • Bandwidth – How much is enough?
  • Data storage – Archiving
  • Data mining application development platform for developers
  • Partnering with local electric utilities
what ibm can do for tucson water
What IBM can do for Tucson Water

IBM can help Tucson Water improve customer service, reduce costs, and maximize the use of data to create the smart and efficient water delivery system. As a grant recipient, Tucson will receive pro bono consulting expertise valued at $400,000.