5. A Utilisation of gas: Today’s challenges?
Objectives: The speakers are requested to submit papers that discuss the present situation of the gas utilisation in relation with the current market changes: development of LNG and in general multiplication/diversification of supply sources (including biogas), decrease of heat demand, high conscience on global warming, liberalisation and globalisation of the gas industry, etc.

Special focus should be given to:

• Gas quality challenges
• Reduction of greenhouse effects (efficiency, combustion technology, gas cleaning)
• Emergence of hydrogen and biogas
• Selling energy services in complement to selling gas?
• Energy efficiency, best practices
• Cost of gas infrastructure and maintenance in areas where the gas sales decreases
• Standardisation in support of technology integration

Key words: Gas quality - Hydrogen - Energy service - Green house

5. B Domestic and commercial sector: What are the products for tomorrow?
Objectives: For this session, the speakers are requested to submit papers that bring solutions and examples of how natural gas can compete against other energies on the present decreasing markets (in many countries) and propose sustainable and economically competitive products to the customers. Both existing applications (heating, cooking etc.) and new applications (cooling, power production, etc.) are to be considered.

Special focus should be given to new efficient technologies like:

• Heat and power generation (micro-cogeneration, tri-generation)
• Combination of renewables with gas (solar, biogas)
• Development of gas heat pumps and gas air conditioning

Note that the technological aspect as such shall not be treated extensively in the papers. Aspects like implementation of technologies, case studies, economical assessments, CO2 and efficiency impact of natural gas technologies, among others, will be prioritised.
Key words: Efficiency - CO2 emission - µCHP – Renewables – Hybrid - New applications - Heat pump

5. C Industrial sector: What are the products for tomorrow?
Objectives: For this session, the speakers are requested to submit papers covering the following topics:

• CHP use in the industry
• Natural gas as a tool for integration of renewable energy (wind/hydrogen, biogas)
• Rational Use of Energy/Energy savings
• Processes

The topics can be treated as case studies, example of technical developments, impact of gas technologies, etc. They should cover one or many aspects among technical, regulatory, marketing or economical issues
Key Words: CHP – Hydrogen – Renewables - Rational energy use - Technology

5. D NGV sector: Methane - a global eco-efficient mobility solution
1. Objectives: For this session, the speakers are requested to submit papers that discuss the topics listed below. These will be discussed both at the WOC5 sessions and at the special session organised by IANGV (International Association for Natural Gas Vehicles).

• Methane for transport - real life experience: everyday life experience, experience in daily operation, safety issues, costs, comfort for user/operator, incentives, positive role undertaken by gas companies etc
• Off-road applications – strategies and range of possibilities: trains, tractors, forklifts, snow and ice resurfacing, marine applications, port applications, airports, airplanes etc
• NGV technology breakthrough: efficient methane gas vehicles, hybrids, bio-methane +, methane storage, filling
• Methane corridors: gas quality, blue corridors development, methane-to-hydrogen fuelling station pathway: linkages between natural gas, methane and hydrogen for the future
• Role of vehicle manufacturers in the NGV market development

Key Words: NGV, CNG, blue corridor, case study, methane, bio-methane, hydrogen, off-road