1. 1 AMI AT GROTON ELECTRIC LIGHT: PRESENT & FUTURE… DAN HACK - MUELLER SYSTEMS CUSTOMER CONNECTIONS CONFERENCE COLORADO SPRINGS 10/27/09

2. 2 2 Who’s Fault… I called a Selectmen after his high usage appeared on our variance report… I gave him the specific hours with high use First - Blamed us Second - Blamed the kids Third - Blamed the wife After the first snow of the year, I called him and told him that his use had remained low that night. Oops - He realized that it was his engine block heaters from trucks that had previously been garaged at another location.

3. 3 Who & Where is Groton Electric Light

4. 4 100 year old Massachusetts Muni 4,400 connected customers Area of 33 sq miles 153 miles of service connections $9M in annual revenue $.13 per KWh

5. 5 Groton Past Situation…Year 2005 Manual reading Dated meter population Goals Eliminate manual meter reading Redeploy readers & reduce vehicle exp’s Maintain or improve customer service Began looking at AMR & AMI

6. 6 Selected and Deployed Mi.Net

7. 7

8. 8 4 Major Components Mi.Node-E Electric Meter & Communication Module Mi.Node-W Water Communication Module Mi.Gate: Central Communication Module (Collector) Mi.Host: Host Server and User Interface

9. 9 Groton Present - Functionality Full deployment of Mi.Net Monthly reads for billing Load Profile (hourly data across system) On-Demand reads Time Of Use Rates implemented ‘09 Outage Management System Consumer Web Access

10. 10 Groton Present - Benefits Full deployment of Mi.Net No more manual reads Moved readers to new job functions Eliminated need for reading vehicles Maintain or Improve customer service…

11. 11 Multiple High Bill Complaints

12. 12 Customer walks in complaining… Last month my bill was too high! You must have made a mistake! Customer Service reps checks account history and asks, “what did you begin doing at about 10AM on January 20 th ?” You could see by the look on his face that he knew what the problem was. He left, then called back a few hours later to see if his use had returned to normal.

13. 13 December 12, 2008

14. 14 December 12, 2008 – New England Severe Ice Storm Hit – worst in 10 years State(s) of Emergency Declared Millions without power

15. 15 December 12, 2008 – In Groton… Mutual Aid was called for early 23 linemen at work by noon  During the ice storm that blanketed the region on December 11th, 2008, Mi.Net helped me to realize the extent of the damage to our system before the sun rose. This helped me to set priorities, take corrective action, and gave us a significant edge in the restoration process.  - Kevin Kelly, Manager, Groton Electric Light

16. 16 December 12, 2008 – In Groton… 3,648 of 4,400 customers were affected by the ice storm Only 1,650 customers were without power for more than 10 hours

17. 17 User Interface Easy Navigation ALL Meters

18. 18 User Interface – By account Integrated CIS Data On-demand Reads “to the Meter”

19. 19 User Interface – Reports Numerous Report Formats On Line Graphs or Export to Excel

20. 20 GIS Tool - Outage Management If you click on the outage tab in the upper left corner Full Outage list is then shown for sorting and prioritizing work

21. 21 Click on an icon and you can see address detail

22. 22 Consumer Home Page 22 Linked from Utility Consumer Alerts, Also Emailed Weather Data Message from Utility Easy Navigation

23. 23 Consumer Settings Page 23 Consumer Managed Email List Consumer Selected Units Consumer Managed Thresholds

24. 24 Consumer Daily Consumption Consumer Threshold Year, Month or Hourly

25. 25 Consumer Hourly Consumption 25

26. 26 Groton Present – Additional Benefits Detect meter tampering/theft Monitor customer and system loading Detect customer generation backfeed Enable logging of power quality data Correlate load demand with ambient weather conditions “It’s like getting free SCADA – the system was justified on reading costs alone…” - Kevin Kelly, Mgr

27. 27 Groton Future Home Area Network Remote Disconnect Transformer Profiling Support Water Dept

28. 28 Home Area Network Plans Lower Cost Utility incurs ZigBee costs only when Customer “Ops In” Longer Range Minimize install issues with Apt’s, Large homes, homes w/meters installed at curb Choice Utility & customer free to choose ZigBee accessories AMI Connected HAN Gateway

29. 29 Who is Mueller Systems Subsidiary of Fortune 1000 Company - MWP $2B Annual Revenues 7,000 Employees Over 150 Years in the Utility Business Leading Mfg of Water Infrastructure Products/Services

30. 30 Questions? - Groton Experience - Mi.Net AMI System *Remember to back-up