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.

Definitions
Flow - Physical  Last refresh :

Export

Select the file(s) format(s) you want to export

Period
2025
  • 2027
  • 2026
  • 2025
  • 2024
  • 2023
  • 2022
  • 2021
  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
  • 2013
  • 2012
  • 2011
  • 2010
  • 2009
  • 2008
  • 2007
Export format(s)
Daily/Hourly
  • Daily data
  • Hourly data
PITS
  • PIR
  • PITTM
  • PITS
  • Conversions
  • Flow
  • GCV
  • WOBBE
  • CH4
  • H2
  • O2
  • per DAY
  • per MONTH
  • per YEAR
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Physical measurement : Quantity of natural gas measured in energy that has transited through the network at one point.

GCV : Gross calorific value of the natural gas transited.

WOBBE : Wobbe Index of the natural gas transited.

CH4 : Methane content of the natural gas transited.

H2 : Hydrogen content of the natural gas transited.

O2 : Oxygen content of the natural gas transited.