1. The Thermal Measurement Principle of the AERIUS Gas Meter II. INTERNATIONAL ISTANBUL SMART GRID CONGRESS AND FAIR – 8 th /9 th May 2014

2. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 2 Content Diehl & Diehl Metering Division Diehl Gas Metering GmbH Natural Gas Test Bench of Diehl Gas Metering GmbH Microthermal Measuring Principle: AERIUS Technical Details Billing processes AERIUS installations Summary

3. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 3 Diehl Group Corporate Divisions of Diehl: Sales:2.83 Bil. Euro Employees:14.369 Headquarter:Nuremberg Family-owned company since 1902

4. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 4 Diehl & Diehl Metering Division Semi-finished products and forged parts of copper and copper alloys or synchronizer rings of steel as well as metal-plastic compound systems Control and automatic control systems for domestic appliances, photovoltaics and Smart Home systems Systems for defence and homeland security as well as for vehicles Systems to equip cabins and avionics Water and energy metering as well as Smart Metering solutions

5. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 5 Diehl & Diehl Metering Division Sales:270 million Euro Employees:2.020 7.0 millionMeasuring units p.a. 4.6 millionRadio modules p.a.

6. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 6 Diehl & Diehl Metering Division Production of state-of-the-art technology * : 31 million radio modules 2 million ultrasonic meters 17 million measuring capsules 15 million rotary piston meters * until 2013

7. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 7 Diehl & Diehl Metering Division Water meters HYDRUS ultrasonic meter Systems and software IZAR RDC (data concentrator) Gas meters AERIUS microthermal gas meter Electricity meters Echelon electricity meter Heat meters SHARKY ultrasonic energy meter Smart Metering solutions Services and communications

8. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 8 Diehl & Diehl Metering Division Meters Electricity meters - Gas meters - Heat/cooling meters - Water meters System & Software Communication modules - Gateways - Data loggers - MDM software Meter Management Meter selection - Meter installation - Meter maintenance System Management Planning - Installation - Support - Operation Data Management Hosting - Validation/data mining - Process integration - Reporting

9. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 9 Diehl & Diehl Metering Division Saint-Louis Ansbach Mátészalka Bazanowice Vienna Recife Jinan Production/ Sales Dubai Esbjerg Lyon Paris Milan Manchester Sales Company/Office Apolda Nuremberg Production

10. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 10 Diehl Gas Metering GmbH Ansbach/Germany Competence center Gas measurement Diehl Gas Metering Gas Jan.2010Foundation of Diehl Gas Metering GmbH Nov.2011Approval AERIUS 1.0, start of series production June20121. Rev. MID Approval (P max 0.5 bar / Hydrogen admixture to natural gas) April20132. Rev. MID Approval AERIUS 1.1 + 1.2 (2-pipe version / 434 MHz Radio Frequency)

11. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 11 Europes most modern gas test laboratory Our gas meters are tested in the in-house laboratory in Ansbach (Germany) under realistic conditions (-25C° to +55C°). This laboratory is Europes most modern testing center for gas meters. The bavarian authority for measurement and weighting approved the laboratory officially for testing of gas meters up to 10 m³/h due to 01- 2012-GB 11

12. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 12 Natural Gas Test Bench Supersonic nozzles for flow rate setup Gas is pumped in circle: less waste of natural gas Rotary piston meter for check of supersonic nozzles

13. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 13 AERIUS – Solution gas meter… …the combination of standard volume and intelligent functions pressure and temperature converting volume

14. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 14 Microthermal Principle: AERIUS Temperature range: -25 °C to 55 °C Max. operating pressure: 0.5 bar Battery life time: 20 years Communication module: wired M-Bus wireless M-Bus Integrated radio module:868 MHz / 434 MHz OMS ® protocol AES Key Fraud detection: air detection ATEX

15. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 15 Microthermal Principle: AERIUS

16. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 16 Microthermal Principle: AERIUS Electronics (analog part, A/D-Converter, memory) Sensor Heating Element Thermopile 2Thermopile 1 Absolute Temperature Sensor

17. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 17 Microthermal Principle: AERIUS

18. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 18 AERIUS in system architecture

19. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 19 Bill kWh Diaphragm gas meter Assumptions: Temperature 15°C Air pressure 1016mbar Pressure in supply pipe 22mbar Calorific value kWh/m 3 relative to 273.15 K and 1013.25 mbar Multiplication with the count and the condition number T-correction 273.15 / 288.15 = 0.9479 p-correction 1016 – (0.12 * m.ü.M.) + 22 1013.25 condition number = 0.9479 * p-correction AERIUS Display in relation to: Temperature 0 °C Air pressure 1013.25mbar condition number = 1 Residential gas billing - Germany DVGW G685

20. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 20 Residential gas billing - IGDAS

21. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 21 AERIUS installations in Germany Fieldtest/Pilotproject 2012 Sample Pilotproject 2013

22. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 22 What is the AERIUS benefit?  A high tech gas metering device… Extended dynamic range Patented antipollution cyclone filter 20 years operating lifetime  …to develop Smart Gas Grid… standard volume (RLP) High performance and safe communication (OMS) Fraud detection  …and experience satisfied customers Transparent and fair billing Noiseless and wear-free Fire detection

23. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 23 Do you want to know more? Steffen Lacher Product Manager Steffen.Lacher@diehl-gas-metering.de Steffen.Lacher@diehl-gas-metering.de Tel: +49-981-1806-309 Fax: +49-981-1806-325 Diehl Gas Metering GmbH Industriestrasse 13 91522 Ansbach Germany

24. AERIUS Gas Meter, May, 9 th 2014 - ICSG © Diehl Metering 24 TEŞEKKÜR EDERİM!