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30.10.2014

Press release (French only)

Rétributions d'utilisation du réseau: la branche du gaz s'accorde avec le surveillant des prix.[more]


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NATURAL GAS

A fossil fuel containing a mixture of gaseous hydrocarbons naturally present in porous rocks. It mainly contains methane (between 81 and 97%). Natural gas is colourless and odourless. However, for safety reasons, a chemical odorant is added to allow detection in the event of a leak. Gas is lighter than air and is gaseous at temperatures above -161° C.


NETWORK

Set of local, national and international interconnected gas pipelines used for the transport and distribution of natural gas. Low-pressure (maximum pressure of 5 bar) and high-pressure (from 16 to over 100 bar) networks are also used.


NETWORK CAPACITY

Capacity of a network to transport a given volume of natural gas per hour, from the injection point to the delivery point. This capacity is given in Nm3/h.


NON-CONVENTIONAL GAS

The term “non-conventional gas” is generally used for tight gas reservoirs, shale gas and coal bed gas, also known as coal bed methane.


NORMAL VOLUME

Volume of a given amount of natural gas in normal conditions, which means at an (absolute) pressure of 1.01325 bar and at a temperature of 273.15°K (0°C). The normal volume is expressed in Nm3.


NATIONAL OR VIRTUAL HUB

Gas trading point without a specific location: this is generally the case when the hub support is all or part of the transport network, whether it is national or local. All the gas injected into this network via its various entry points is considered as potentially available for trading and deliverable at any delivery point in the network.