1. Scott Westall – Graduate Gas Engineer Time Expired Program (Gas Meter Replacement) Gas Speak Colloquium 2015 e: scott.westall@downertenix.com | m: 0428 241 913scott.westall@downertenix.com

2. © Downer Group Limited All rights reserved  About Downer Utilities  What is a Gas Meter?  Time Expired Meter (TEM) Program (Gas Meter Replacement)  Innovation  Customer Relations Page 2 OVERVIEW

3. © Downer Group Limited All rights reserved What we do? Power and gas transmission and distribution:  Downer offers customers a wide range of services including planning, designing, constructing, operating, maintaining, managing and decommissioning power and gas network assets.  Our collaborative approach has made Downer a benchmark end-to-end service provider to owners of utility assets. Page 3 About Downer Utilities

4. © Downer Group Limited All rights reserved AusNet Services Gas Contract  Natural Gas Supplier to Western Victoria  Victoria’s Largest Energy Utility  ~ 635,000 Customers Page 4 About Downer Utilities

5. © Downer Group Limited All rights reservedPage 5 About Downer Utilities GAS DISTRIBUTION NETWORK

6. © Downer Group Limited All rights reservedPage 6 What is a Gas Meter ?  A gas meter is a specialized flow meter, used to measure the volume of fuel gases such as natural gas and propane.  Diaphragms expand and contract, levers connected to cranks convert the linear motion of the diaphragms into rotary motion of a crank shaft serving as a primary flow element. This shaft drives then drives odometer-like counter mechanism.cranksprimary flow elementodometercounter

7. © Downer Group Limited All rights reservedPage 7 What is a Gas Meter ?

8. © Downer Group Limited All rights reservedPage 8 TEM Program (Gas Meter Replacement) Why Do We Replace it?  Gas Meter Life Cycle – 15 Years  Maintain Meter Reads – Accurate & to Specification  Reduce Billing Errors

9. © Downer Group Limited All rights reservedPage 9 TEM Program (Gas Meter Replacement) What’s Involved?  ~ 25,000 / Domestic Gas Meter Units (e.g. – AL425)  ~ 400 / Industrial & Commercial Units (e.g. AL1000, 1400, 2300)  ~ 30 / System Operation Units

10. © Downer Group Limited All rights reserved FLE 2015 AS-4944: Testing for Variables Meter DescriptionCurrent Test Year Required numbers for AS 4944 Variables Additional 15% (Recommended) Email 602 (new)1990100115 Email 602 (new)1994100115 Email 602 (Merged)20017586 Email 61019977586 Email 61019987586 Email 61019997586 Email 6102001100115 AL42519962023 AL42520011517 U1020013540 TOTALS 670771 Page 10 TEM Program (Gas Meter Replacement) Field Life Extension (FLE) Program

11. © Downer Group Limited All rights reservedPage 11 TEM Program (Gas Meter Replacement) Project Forecasting  12 Month Forecast Projection  Domestic, Industrial & Commercial, System Operations  FLE Program – 2 Month Forecast Projection  Proper Utilise Resources / Maintain Schedule  Inform and Update Client of Program Progression

12. © Downer Group Limited All rights reservedPage 12 TEM Program (Gas Meter Replacement) Project Forecasting(Sample Data)

13. © Downer Group Limited All rights reservedPage 13 TEM Program (Gas Meter Replacement) Challenges  No Access into Property / Residents  Locked Gates  Dangerous Animals (e.g. Dogs)  Non-Cooperative Customers / Refusing Meter Replacement  Weather Conditions  Meter Locations (e.g. New / Old Suburbs)  Delay Refix / Relight of Customer Household Gas Appliances  Gas Regulator Conditions / Life Cycle at Certain Locations

14. © Downer Group Limited All rights reservedPage 14 Innovation Gas Meter Installation Design LONG SERVICE (350mm) SHORT SERVICE (220mm)

15. © Downer Group Limited All rights reservedPage 15 Customer Relations Notifications  2 Week Notice – Letter of “Interruption to your Gas Supply”  Red Card – Instructional Self Help Booklet to “Turn Gas On”  Make Appointment with Fitter do Refix / Relight of Gas Appliances  Multi Languages  Service - Free of Charge

16. © Downer Group Limited All rights reservedPage 16 Customers Customer Service "Customers may forget what you said but they'll never forget how you made them feel. "

17. © Downer Group Limited All rights reservedPage 17 Questions?