Advanced Meter Infrastructure

Transcription

1 Advanced Meter Infrastructure

2 Town of Cary Utility System Towns of Cary and Morrisville, RTP, RDU Peak Day Demand of mgd 64,000 meters Water, Irrigation and Reclaimed Water Pit sets at the curb 70% residential Culture of Conservation Program started 1996 Tiered Water Rates Realized GPCD reduction 2 60,000 50,000 40,000 30,000 20,000 10,000 0 Number of Meters 5x8 / 3x4 1" 1.5" 2" 3" 4" 6"

3 3 Meter Reading Before

4 Change Was Right for Cary 4

5 How We Chose Our Direction Hired independent experienced experts Prioritized Needs/Preferences Data: Read Frequency, Resolution, Backflow, Reporting Physical opportunities and challenges Risk tolerance Fancy features and big ideas 5

6 Meter Reading via Aquastar Infrastructure Town Server Water Meters 6 Regional Collectors

7 Fixed Network Radio Coverage Provides Hourly Meter Reading 7

8 Cost Benefit Analysis X 3 8

9 Financial Drivers: Critical to Project Credibility Inaccurate old meters High water losses Increasing labor costs Water conservation to postpone capital investment 9

10 Efficiency.net Overcoming the Barriers to Financing AMI cy.net/we/articles/24641.aspx Search AMI = 250 articles since about

11 In Cary Money, Money, Money - Invest $18 Million + Benefit $28 Million (17 Years) Bottom Line Net Benefit: $10 Million

12 How to Pay for AMI Same as any utility project Cash Debt that matches the life of the system Asset backed Revenue bonds Private bank placement Performance contracting 13

13 Investment: Technology 14

14 Investment: 60,000 Meters and Installation 15

15 Investment: Regional Collectors Antenna: 11 tall Base Units: 5 High 3 Wide 2.5 deep 16

16 Investment: Communications Plans Goals, Objectives & Strategy Tactics Target Publics Spokespersons Key Messages & General Facts Activities (Logos, Hotline, Door hangers, Events, Video, etc) Budget Timeline 17

17 Investment: Interest Expense? Unique consideration compared to other UT projects AMI is choice on how to do business Similar to a life cycle cost analysis 18

18 Savings Meter Reading 19

19 Savings - Meter Maintenance 20

20 Worker Safety 1 Worker s Comp claim for a trip and fall: $40K 21

21 Green: Smaller Fleet, Less Fuel 70,000 miles/year off the road 22

22 Water Conservation Wise water use increases water supply reliability which could delay or eliminate next WTP expansion 50% chance expansion needed about 2032 With conservation/reuse: just under 50% chance no expansion needed for buildout/2060 Expansion from 40 to 56 mgd 23

23 Before BIG Data After 24

24 CIS System - NaviLine Customer Portal It s Complex MDM Processed Read Data RNI Raw Meter Data SAS Analytical Tables 25

25 Four Data Systems FlexNet Raw data received from meters and accessed by Finance Department Naviline Monthly summary data used by Finance for billing Planet J Summary data for viewing by customers using the Aquastar web portal SAS Hourly and daily summary data for analysis by Town staff Accuracy Billing Customers Staff 26

26 Data Management Complexities Data use can t affect the collection/ storage of radio transmissions from the meters. No one application can affect the other applications. Complex strategies needed to manage chunks : incoming (2 weeks) current (13 months) archived (older) data 27

27 Policy Issues Policy/Program Evaluation Health and Safety Concerns Data Use Policy Customer Service Town Code Enforcement 28

28 Stakeholders Addressed Policy Implications of Data Use 12 months, 47 items, 4 categories: Policy/program evaluation Health and safety concerns Customer service Town code enforcement 29

29 Current and Potential Policy/program Evaluation Aggregate compliance with Alternate Day Watering ordinance; impact of changes Extent of code violations, in aggregate (unpermitted irrigation, minimum housing) Project to right-size meters Rate structures (time of use, peaking) Feasibility of absentee homeowner management of water use 30

30 Current and Potential Policy/program Evaluation Low income special leak detection monitoring Development fee structure (peak day use act. vs est.) Feasibility of senior citizen or other unusual pattern monitoring Feasibility of fire suppression system monitoring for theft detection 31

31 Public Health and Safety Protection Set and monitor Water Shortage Response Plan Stage III and Rationing water use levels ID systems without required backflow prevention (residential irrigation, commercial) Reclaimed water use during annual reclaimed holiday 32

32 Customer Service Enhancement ID constant or high or abnormal usage Leak or malfunction detection Commercial water budget adjustment Financial adjustments based on precise water use instead of estimates (e.g. pool filling, leaks) 33

33 Town Code Enforcement Types Alternate Day Watering Rain Sensor Ordinance Water Waste Ordinance Water Shortage Response Options Verify field observation Confirm complaints Replace field observation 34

34 3/28/2012 4/12/2012 4/27/2012 5/12/2012 5/27/2012 6/11/2012 6/26/2012 7/11/2012 7/26/2012 8/10/2012 8/25/2012 9/9/2012 9/24/ /9/ /24/ /8/ /23/ /8/ /23/2012 1/7/2013 1/22/2013 2/6/2013 2/21/2013 3/8/2013 3/23/2013 4/7/2013 4/22/2013 5/7/2013 5/22/2013 6/6/2013 6/21/2013 7/6/2013 7/21/2013 Potable Water (MGD) Understanding the System - Before Daily Potable Water Use and Production Cary + Morrisville + RTP CAWTF Net Cary 35

35 3/28/2012 4/12/2012 4/27/2012 5/12/2012 5/27/2012 6/11/2012 6/26/2012 7/11/2012 7/26/2012 8/10/2012 8/25/2012 9/9/2012 9/24/ /9/ /24/ /8/ /23/ /8/ /23/2012 1/7/2013 1/22/2013 2/6/2013 2/21/2013 3/8/2013 3/23/2013 4/7/2013 4/22/2013 5/7/2013 5/22/2013 6/6/2013 6/21/2013 7/6/2013 7/21/2013 Potable Water (MGD) Understanding the System - Before Daily Potable Water Use and Production Cary + Morrisville + RTP Which customers and what uses cause max day? How much is commercial vs. residential? What are peaks in each pressure zone? How much is unaccounted for daily? CAWTF Net Cary 36

36 Understanding the System Now 37

37 Understanding the System Now 38

38 Understanding the System Now Guaranteed Sales/ Customer Class 39

39 Understanding the Sewer System 40 Water meter data used to estimate the daily and even hourly sewer flows Useful in areas where there is not detailed sewer flows Totals within 5% of calculated sewer flows based on pump runtime

40 Gallons per Day/Capita 90 Average Annual Weather-Adjusted Residential Water Use SFR Annual Average gpd Population Served

41 Gallons per Day/Capita 90 Average Annual Weather-Adjusted Residential Water Use Annual average of daily values: Total census block daily use Census block population Who/where are lows/highs?

42 Irrigation Dominates Summer Use for Separate Meter Residents About 5,000 separate meter accounts 43

43 Separate Residential Irrigation Accounts Jan2005 May2005 Sep2005 Jan2006 May2006 Sep2006 Jan2007 May2007 Sep2007 Jan2008 May2008 Sep2008 Jan2009 May2009 Sep2009 Jan2010 May2010 Sep2010 Jan2011 May2011 Sep2011 Jan2012 May2012 Sep2012 Jan2013 ~2,500 Residential Customers Use > 1 MGD Irrigating During Peak Summer Month 7,000 6,000 5,000 Number of Irrigation Locations w/ Consumption > 0 Number of Irrigation Locations w/ Consumption > 10,000 Number of Irrigation Locations w/ Consumption > 15,000 Monthly Consumption 4,000 3,000 2,000 1,

44 Jan2005 May2005 Sep2005 Jan2006 May2006 Sep2006 Jan2007 May2007 Sep2007 Jan2008 May2008 Sep2008 Jan2009 May2009 Sep2009 Jan2010 May2010 Sep2010 Jan2011 May2011 Sep2011 Jan2012 May2012 Sep2012 Jan2013 Monthly Consumption (gallons) Some Residential Customers Use Over 10,000 GPD for Irrigation 700, , ,000 Maximum Consumption (gallons) Mean Consumption (gallons) Median Consumption (gallons) 400, , , ,

45 Transformational!!! Customer Service Becomes Proactive* *Most not quantified for cost/benefit analysis 46

46 Aquastar Customer Service* High Usage monitored Continuous flow monitored Highest quality billing Customer Call center service Same day customer starts and stops * Most not quantified for cost/benefit analysis 47

47 Consumption Report from MDM (Meter Data Management System) Single Family Residential Customers with usage over 1,000 gallons per day Broad Brush Approach Catching Leaks 48

48 When Should We Contact Customers? Balance between being helpful and being a nuisance Best way to contact customer Minimize truck rolls 49

49 Catching Leaks (Version 2) More refined brush stroke Incorporate all customers not just SFR Simple to use 50

50 Catching Leaks (Version 2) Sensus Leak Report CIS Water Meter Info Combine Meter and CIS Info 20 or More Hours of Continuous Usage Daily Usage Summary Prior Day Usage Previous Four Days of Usage 51 Hourly Usage Data for Continuous Count

51 Catching Leaks Front End 52

52 Tracking Results 53

53 54 Self Serve, PLEASE!

54 55 Customer Webportal

55 Self Subscribed and Text Alerts 56

56 09/14/13 09/15/13 09/16/13 09/17/13 09/18/13 09/19/13 09/20/13 09/21/13 09/22/13 09/23/13 09/24/13 09/25/13 09/26/13 09/27/13 09/28/13 09/29/13 09/30/13 10/01/13 10/02/13 10/03/13 10/04/13 10/05/13 10/06/13 10/07/13 10/08/13 10/09/13 10/10/13 10/11/13 10/12/13 10/13/13 Customer Webportal Statistics 160 Number of Alerts Sent Daily

57 Timeline 2002 Consultant evaluation of AMI 2006 Consultant evaluation and AMI bid 2009 Council approval of project & approach 9 month contract development 2011 Meter installation kickoff 5 month network installation 2012 Meter installation final 15 month field work 2013 Web portal launch 12 month web development 58

58 Key Ingredients to Project Success Through the lens of the customer Custom Cary project Extensive research and shared lessons from other utilities Shaped by our values for customer service, safety & privacy Comprehensive communication plan Project identity Defined target dates and timelines Clear vision of success & definable outcomes Including customer satisfaction 59

59 Key Ingredients to Project Success The Cary Way Support and commitment Council Management Staff Sufficient financial resources Sufficient staff resources Treated employees fairly Partnership and involvement with vendors Risk management through thorough contracts 60

60 Investment: Staff Time & Stress 61

61 Investment: Commitment Everything turns out fine in the end. If it isn t fine, it isn t the end. 62

62 63

63 Questions? Karen Mills, CPA Finance Director Leila Goodwin, P.E. Water Resources Manager