GLOSSARY

Backhaul Capacity:
Capacity on the Main Network enabling the Shipper to make nominations in the direction opposed to the dominant direction of flow when the gas can only flow in one direction. It can only be used on a given day if the overall flow resulting from all nominations of the shippers is in the dominant flow direction.
 
Balancing Section B:
Second of the two network sub-sections resulting from the partition of the North Balancing Zone, within which the Shipper must ensure a balance and including the points relative to the transmission of gas in accordance with the specifications of the B-gas.
 
Balancing Section H:
First of the two network sub-sections resulting from the partition of the North Balancing Zone, within which the Shipper must ensure a balance and including the points relative to the transmission of gas in accordance with the specifications of the H gas.
 
Balancing Zone:
A part of the network consisting of Entry Points, Delivery Points and a Title Transfer Point within which the Shipper must maintain a balance. There are two Balancing Zones : Balancing Zone North and Balancing Zone South. The Balancing Zone North is partitioned into the Balancing Sections H and B.
 
Connection:
Transport facility providing the link between the Transmission Network and one or more Delivery Stations and intended exclusively or mainly for the supply of a customer or distribution network. The Connection is a part of the Network.
 
Connection Contract:
Contract between GRTgaz and a Customer defining the conditions of provision, operation and maintenance of Connection Facilities and the Conditions of Delivery.
 
Connection Facilities:
All the facilities providing the connection of a consumption site or a Distribution Network to the Transmission Network. A Connection Facility is made up of one or more connections and one or more Delivery Stations.
 
Conversion Capacity:
Maximum quantity of energy, expressed in MWh (Higher Calorific Value) per day, that GRTgaz undertakes to deliver in the form of respectively B -gas or H-gas and to simultaneously take off in the form respectively of H-gas or B -gas.
 
Conditions of Delivery:
Obligations of GRTgaz regarding the physical characteristics of the natural gas that he delivers (pressure, temperature…).
 
Consumer Delivery Point:
Delivery Point where the recipient represents a consumer connected to the Transmission Network. Except where expressly stated otherwise, a Consumer Delivery Point is situated at the downstream flange of a Delivery Station. A Consumer Delivery Point is associated with a single Exit Zone.
 
Cumulative Imbalance:
For each Shipper, each day, each Balancing Zone and, in the North zone, for each gas quality, the Cumulative Imbalance is equal to the algebraic sum of the Shipper's residual Daily Imbalances, taking into account purchases and sales of quantities outside the daily imbalance tolerance and outside the cumulative imbalance mid-range.
 
Customer:
Final consumer of natural gas.
 
Daily Capacity:
Maximum quantity of energy that GRTgaz undertakes to take off, transmit or deliver (as the case may be) each day.
 
Daily Imbalance:
For each Shipper, each day, each Balancing Zone and, in the North zone, for each gas quality, the Daily Imbalance is equal to the difference between the sum of the quantities input by the Shipper and the sum of the quantities output by the Shipper. The input quantities include : the quantities taken off at the Entry Points, the quantities transmitted on the Links and corresponding to inputs, the quantities taken off at the Title Transfer Point. The output quantities include : the quantities delivered at the Delivery Points, the quantities transmitted on the Links and corresponding to outputs, the quantities delivered to the Title Transfer Point.
 
Delivery Capacity:
Maximum quantity of energy, expressed in MWh (Higher Calorific Value) per day, that GRTgaz undertakes to deliver at a Consumer Delivery Point, a Transport Distribution Interface Point or a Regional Network Interconnection Point, as the case may be.
 
Delivery Point:
Point where GRTgaz delivers all or part of the gas to a recipient pursuant to the Transmission Contract. A Delivery Point is associated with a single Balancing Zone. A Delivery Point is, as the case may be, a Consumer Delivery Point, a Transport Distribution Interface Point, a Network Interconnection Point, a Regional Network Interconnexion Point or a Transport Storage Interface Point.
 
Delivery Station:
Installation at the downstream end of a Transmission Network, generally fulfilling the functions of pressure reduction, pressure regulation and metering of the gas delivered to a consumer or a Distribution Network. The limit of the Transmission Network is the downstream flange of the Delivery Station.
 
Distribution Network:
A set of facilities consisting chiefly of pipes at medium or low pressure that provides for the transmission of gas to the consumers who are not connected to the Main Network or a Regional Network.
 
Entry Capacity:
Maximum quantity of energy, expressed in MWh (Higher Calorific Value) per day, that GRTgaz undertakes to take off at a given Entry Point.
 
Entry Point:
Point where the Shipper makes all or part of the gas available to GRTgaz, pursuant to the Transmission Contract. An Entry Point is associated with a single Balancing Zone.
 
Exit Capacity:
Maximum quantity of energy, expressed in MWh (Higher Calorific Value) per day, that GRTgaz undertakes to deliver each day at the Delivery Points associated with a given Exit Zone, at a given Network Interconnection Point or at a given Transport Storage Interface Point.
 
Exit Zone:
A set of Consumer Delivery Points, Regional Network Interconnexion Points and Transport Distribution Interface Points for which an Exit Capacity from the Main Network is defined. An Exit Zone is associated with a single Balancing Zone.
 
Firm Capacity:
Capacity which use the transporter is in a position to guarantee at any time during the whole subscription period and under normal operating conditions.
 
B -Gas:
Natural gas with a low calorific value, the characteristics of which are defined in Appendix 2 of the Transmission Contract (Technical Requirements).
 
H-Gas:
Natural gas with a high calorific value, the characteristics of which are defined in Appendix 2 of the Transmission Contract (Technical Requirements). 
 
Hourly Delivery Capacity:
Maximum quantity of energy, expressed in MWh (Higher Calorific Value) per hour, that GRTgaz undertakes to deliver each hour at a Consumer Delivery Point.

Interruptible Capacity:
Capacity which use the transporter is not in a position to guarantee throughout the duration of the subscription.
 
Link:
Oriented pair of Balancing Zones on which a Link Capacity is defined.
 
Link Capacity:
Maximum quantity of energy, expressed in MWh (Higher Calorific Value) per day, that GRTgaz undertakes to transport each Day on a Link between two Balancing Zones.
 
LNG Terminal:
Installation providing for the reception, storage and regasification of liquefied natural gas (LNG) and for the delivery of the regasified LNG to the Main Network.
 
LNG Terminal Access Contract:
Contract between the LNG Terminal Operator and a Shipper defining the conditions of reception, storage and regasification of cargoes of LNG delivered by the Shipper to a LNG Terminal.
 
Main Network:
A set of high-pressure, large-diameter transport facilities that links the interconnection points with neighbouring Transmission Networks, the Storage Points and the LNG Terminals and to which are connected the Regional Networks, certain industrial consumers and some Distribution Networks.
 
Network Interconnection Point (PIR):
Physical or notional interconnection point between the transmission networks of two Operators.
 
Operator:
Individual or legal entity responsible for the operation of given facilities.
 
Regional Network:
A set of high-pressure transport facilities that provides for the transmission of gas from the Main Network to those consumers and Distribution Networks that are not directly connected to the Main Network.
 
Regional Network Interconnection Point (PIRR):
Physical or notional interconnection point between the Regional Network of GRTgaz and the transmission network of the adjacent operator.
 
Regional Tariff Level (NTR):
Whole number established on the basis of the cost of transmission of the gas from the Main Network to the Delivery Point considered and enabling the corresponding transmission tariff (without connection) on the Regional Network to be calculated.
 
Regional Transmission Capacity:
Maximum quantity of energy, expressed in MWh (Higher Calorific Value) per day, that GRTgaz undertakes to transport on the Regional Network up to a Consumer Delivery Point, a Transport Distribution Interface Point or a Regional Network Interconnection Point, as the case may be.
 
Releasable Capacity:
Firm Capacity that the Shipper undertakes to return to GRTgaz at any time on demand.
 
Shipper:
Party concluding a Transmission Contract with GRTgaz. The Shipper is, as the case may be, the eligible customer, the supplier or a person appointed by them, as defined in article 2 of the law of 03 January 2003.
 
Storage:
Installation providing for the storage of natural gas in summer, when consumption is lower, and releasing natural gas in winter, when the consumption is higher.
 
Storage Access Contract:
Contract between the Storage Operator and a Shipper for the provision of access to the natural gas storage installations on one or more Storage Groups.
 
Storage Group:
A composite of one or more Storage Sites by means of which Storengy makes the provision that is the subject of the Storage Access Contract.
 
Storage Site:
A set of facilities, installations and systems, consisting, in particular, of underground structures, such as cavities in salt strata or porous rocks in an aquifer, of wells, of pipes, of compression, treatment, measurement and pressure reduction installations, of transmission systems of computer systems etc.
 
Title Transfer Point (PEG):
Virtual point, associated with a Balancing Zone, where one Shipper can trade gas with another one.
 
Transmission Contract:
Contract between GRTgaz and a Shipper with the purpose of determining the conditions under which GRTgaz undertakes to take of the quantities of gas made available to him by the Shipper at one or more Entry Points or Title Transfer Points and to deliver quantities of gas with the same energy value to one or more Delivery Points or Title Transfer Points.
 
Transmission Network:
A set of high-pressure transport facilities that provides for the transmission of gas to the directly connected industrial consumers and to Distribution Networks. The Transmission Network is made up of the Main Network and Regional Networks.
 
Transport Distribution Interface Point (PITD):
Physical or notional interface point between the Transmission Network and a Distribution Network.
 
Transport Storage Interface Point (PITS):
Physical or notional interface point between the Transmission Network and a Storage Group.