AB Amber Grid grants access to its gas transmission system and provides long-term uninterruptible, short-term and interruptible gas transmission services in accordance with the established procedure.

Long-term uninterruptible gas transmission service contracts are concluded for a period of at least one year. Under this contract, every single day the system user is guaranteed constant uninterruptible gas transmission capacities.

Short-term gas transmission service contracts are concluded for a period shorter than one year. The short-term gas transmission contract provides for a possibility for the system user to book monthly or daily capacities according to his actual needs. Under this contract, every single day the system user is guaranteed the uninterruptible gas transmission capacities booked by him.

Interruptible gas transmission services may be provided only in cases where the all the capacities in the connection points (hubs) are fully booked either on the basis of the long-term or the short-term contracts, however they are not fully used, and AB Amber Grid, being the Transmission System Operator, may offer the unused capacities to other system users on interruptible terms. The interruptible gas transmission capacity contract stipulates as follows: the system user is provided with interruptible gas transmission capacities which may be interrupted or limited by the Transmission System Operator at any time.

AB Amber Grid, in its capacity of the Transmission System Operator, does not provide any other additional services such as system balancing, mixing, inert gas injection, or line pack.

Pressure requirements

Maximum operating pressure of natural gas transmission via the Gas Transmission System is 54 bar. In certain individual sections of the Gas Transmission System, the pressure values may be lower. Minimum pressure values for individual points of the Gas Transmission System are determined on a case by case basis upon analysis of the relevant conditions for the connection to the natural gas grid of new gas systems, direct gas pipelines or biogas production facilities.

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