PLINACRO d.o.o. - Operator plinskoga transportnog sustava

Market Demand Survey

INCREMENTAL CAPACITY PROCESS PURSUANT TO THE REGULATION (EU) NO. 2017/459 ESTABLISHING A NETWORK CODE ON CAPACITY ALLOCATION MECHANISMS IN GAS TRANSMISSION SYSTEMS

On 7 July 2025, Plinacro commenced the incremental capacity process, in compliance with chapter V of the Regulation (EU) no. 2017/459, for the incremental capacity:

a) at the existing interconnection points;

b) by establishing a new interconnection point;

c) for the reverse flow at the interconnection point at which the capacity was previously offered in one direction only.

In cooperation with the neighbouring transmission system operators Plinacro conducted an assessment of market demand for incremental capacity.

The interested participants were invited to complete the questionnaire about non-binding incremental capacity separately for demand indicators referring to natural gas transmission and those referring to hydrogen transmission, as provided in the Form for submitting the non-binding demand indicators (Plinacros_table_2025.xlsx).

In the first phase of the process, from 7 July to 1 September 2025, Plinacro collected non-binding requests for the firm capacity.

Additional information and a questionnaire for the assessment of the non-binding demand for firm capacity on interconnections can be found on the following links:

Instructions for completing the form

Form for submitting the non-binding demand indicators

The non-binding request for firm capacity on an interconnection had to be submitted to both neighbouring transmission system operators. If two entities planned to submit a request jointly, one on the one side and the other one on the other side of the interconnection point, then the interest should have been expressed in a joint request with both neighbouring operators at the interconnection point.

The completed forms and all additional questions regarding the incremental capacity process have been sent to the e-mail address

by 1 September 2025.

Within the period of 8 weeks upon the market test completion, on 27 October 2025, Plinacro published a Market demand assessment report in cooperation with the neighbouring transmission system operators.

Moreover, the interested participants were informed about the plans of Plinacro and adjacent operators concerning development projects for delivery of LH2, production of renewable hydrogen and transmission of hydrogen towards Central and Eastern Europe (CEE) and Southeastern Europe (SEE).

The Croatian Hydrogen Strategy until 2050 envisages the development of a terminal for LH2 on the island of Krk, for the construction of which interest has been expressed (Green Energy Park KRK). Combined with the potential for renewable electricity and hydrogen production in Croatia's coastal counties, these sources represent significant potential for supplying customers from Croatia, Central and Eastern Europe (CEE) and Southeastern Europe (SEE) with renewable hydrogen.

Therefore, together with neighbouring transmission system operators, Plinacro is considering the construction of hydrogen pipelines towards two hydrogen corridors:

• South-East European Hydrogen Corridor - Gas Infrastructure Europe and

• SoutH2 Corridor

The interested participants were invited to express a non-binding interest in the development of hydrogen transmission capacities towards the stated corridors by filling out Plinacro's Form for submitting non-binding demand indicators for entry points for LH2 and hydrogen and hydrogen interconnections and forms of neighbouring operators for capacities towards:

• South-East European Hydrogen Corridor - Gas Infrastructure Europe

• FGSZ - Market Demand Survey

• SoutH2 Corridor

• Plinovodi - Market Demand Survey

• GCA-Incremental Capacity Process (Start 2025)

MARKET DEMAND ASSESSMENT REPORT (2025):

Based on the received indicative requests, in cooperation with adjacent transmission system operators (Plinovodi, FGSZ) Plinacro prepared Demand Assessment Reports for interconnection points as follows:

for interconnection point Rogatec - Demand Assessment Report is available for download at the following link: Report.
Hydrogen Demand Assessment Report is available for download at the following link: H2 Report
for the interconnection point Dravaszerdahely - Demand Assessment Report is available for download at the following link: Report

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Market Demand Survey

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