Benefits of GAHP Technology applied to Natural Gas Grids

1. Benefits of GAHP Technology applied to Natural Gas Grids Results from real case applications Gianmarco Peretti Sales and Marketing dept. - Regas (Italy) Thursday, the 7th of June 2012 403/4, Kuala Lumpur Convention Center

2. REGAS – Natural Gas Progress • Founded in 1998 • +108% turnover from 2008 to 2011 • Main customers: ENEL, GDF, ENI • Turnkey solutions for safer and greener gas networks: • Designing, manufacturing and commissioning • Market leader in gas odorants’ distribution • Sole activities on gas distribution and renewable energy • State-of-the-art technologies through a different point of view • Key products: • Omnicube: self-adaptive odorant injection system, market-leader in Italy • ReCoRD: zero-emission remote device for odorant concentration measurement • EMMa: carbon-saver module for cutting gas consumption in pre-heating system

3. ROBUR – Coscienza Ecologica • Founded in 1956 • Development, design and manufacturing of high-efficiency, low-enviromental-impact heating systems • Robur heating systems, through renewable sources, reduce emission up to 40% and are capable of efficiencies up to 170% • Pioneer in GAHP technology: gas heating empowered by renewable sources • 7% of turnover in R&D investments • 60% of turnover from export • Key elements: • Innovation drives research and development of high-efficiency cooling and heating products and provides value-added services to satisfy customers, the real employers of Robur • The Value of HR involves and motivates every internal and external player • Social Responsibility and the Industrial Vocation develop and realize safe, environmentally friendly and energy-efficient products

4. Regas EMMa – The concept • Regas’ aim was to introduce even into the gas distribution network the idea of sustainability through efficiency and renewable energy • One of the most energy-spending process in natural gas network transportation and distribution is pre-heating • That’s why Regas developed and launched EMMa on the market • With EMMa is now possible to: • Lower natural gas consumption – Saves money • Lower CO2 emission – Helps saving the Planet • Figures speak: Field-test average result – 23,000 hours operating time: -34% natural gas consumption

5. PRE-HEATING – How does it normally work? • Usually located in city-gates, between gas transportation networks and gas distribution networks or final large customers • Pre-heating is needed in case of strong pressure drops (higher than 12-16 bar). • Main devices in traditional pre-heating: boilers + heat exchangers + gas thermostats • Unintelligent system: on- and off- switching of boilers (with a standard water temperature set-point) is driven by gas temperature • This means: • No real-time gas temperature control. • Fluctuating gas temperature level • Heat leakage • Natural gas over-consumption Gas temperature (°C) Gas flowrate (Nm³/h)

6. What exactly is EMMa? • EMMa = Energy Multi-variable Master • Real-time control unit to get the best performances in pre-heating by reducing natural gas consumption • With EMMa, pre-heating becomes a smartly efficient process which results into: • Lower natural gas consumption • Lower CO2 emission Never forget field-test average result – 23,000 hours operating time: -34% natural gas consumption Gas flowrate (Nm³/h) Gas temperature (°C)

7. PRE-HEATING – How does it work with EMMa + GAHP technologies? • Regas EMMa module constantly analyzes some main values: • Gas flow rate • Water temperature • Gas temperature • Seasonal temperature • By analyzing the data above, EMMa’s predictive algorithm sets up the best working configuration for boilers, through a sophisticated real-time control • This configuration results in: • Instant gas temperature control • Maximum heat efficiency • Natural gas savings • Less CO2 emissions • EMMa is equipped with failsafe back-up module: if it blocks, the pre-heating system automatically steps back to standard working system • EMMa is also remotely controllable via SCADA

8. PRE-HEATING – How does it work with EMMa + GAHP technologies? – Part 2 • EMMa can have two different types of configurations: • EMMa Eco: standalone master, allows retrofitting to existing boilers • EMMa Premium: state-of-the-art option, improves efficiency by combining EMMa standalone master from Regas with Gas Absorption Heat Exchanger A-series from Robur • Robur Gas Adsorption Heat Pump A Series strongpoint: • Leading-edge aerothermal energy utilization technology • Single-step energy conversion • Temperature working range : -20°C ÷ +50°C • Peak efficiencies up to +165% • First time ever for GAHP technology on gas networks • Suitable on any natural gas pre-heating system with high flow-rates Do you remember the figures? – 23,000 hours operating time: -34% natural gas consumption

9. EMMa ECO (standalone module) = SMART savings • Installation environment parameters: • Maximum flow rate: 8000 Nm³/h • Inlet pressure: 64 bar • Outlet pressure: 4,0 bar • Test period: October 19th – March 14th (147 days) GAS SAVING PERFORMANCE: around -22%

10. EMMa PREMIUM + GAHP = HARD savings! • Installation environment parameters: • Maximum flow rate: 8000 Nm³/h • Inlet pressure: 64 bar • Outlet pressure: 4,5 bar • Test period: June 20th – March 2nd (256 days) GAS SAVING PERFORMANCE: around -44%

11. EMMa + GAHP - Conclusions • Regas = technical and operational know-how on gas networks, control systems and ATEX regulations. • Robur = historical brand in high-technology heating system, environmental-aware • Regas EMMa= smart real-time gas pre-heating control • Robur GAHP A series = renewable aerothermal energy system • Regas EMMa + Robur GAHP A = the most efficient gas-saving, environment-friendly technology for gas distribution networks • Lower gas consumption = high results in cost cutting policies • Lower emissions = less CO2 and other greenhouse gases in the environment Do we still forget something? – 23,000 hours operating time: -34% natural gas consumption