Our SMART website may be unavailable for a few minutes on July 1st 2025 between 11:00 and 11:30 AM due to an IT update

We would like to inform you that we are rebranding our SMART website from GRTgaz to NaTran on July 1st, 2025 at 11:00 AM.

We are replacing the word GRTgaz with the word NaTran in many places on our SMART website, which notably impacts Excel exports. Certain cell contents in CSV and XLS files, such as zone selection names, are affected, as are column headings and sheet names.

The URLs/APIs to be used are smart.natrangroupe.com, although the current URLs/APIs smart.grtgaz.com will remain valid temporarily.

Intra-day flexibility  Last refresh :

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Network Flexibility indicator by meshes Schedule functionnal validation will be done as per Network Flexibility indicator’s management rules. The aim of such validation is to replace the notice period of the flexibility contract.

Q Q- Indicator = GREEN: no notice period** for bearish profiles.

Q Q- Indicator = RED: a 6h notice period** apply for all new bearish profiles.

Q Q+ Indicator = GREEN: no notice period** for bullish profiles.

Q Q+ Indicator = RED:

Q Q+ Indicator = GREY and Q Q- Indicator = GREY and Partial flexibility indicator = GREY: unavailability of flexibility****.

* See flexibility contract for details on Indicators’ publishing and applying hours.

** See flexibility contract for details related to notice period.

*** See flexibility contract for details related to the limited flexibility for bullish profiles.

**** See flexibility contract for details related to unavailability of flexibility.