Preparations for open gas market

Finland’s new Natural Gas Market Act entered into force at the beginning of 2018. In addition to the reformed Act, the market opening will also require rules and procedures agreed by the sector. Gasum’s TSO (transmission system operator) department is coordinating the gas market rules formulation process in cooperation with customers and other stakeholders. In addition to rules TSO prepares contracts, transmission tariffs, IT systems and data exchange instructions for the open gas market. These web pages are Gasum’s TSO department’s information channel regarding Finnish gas market opening.

Gasum as the current transmission system operator organizes natural gas market reform by designing market rules with the customers, the Ministry of Economic Affairs and Employment, Energy Authority, Baltic Connector Oy and other stakeholders. The Government’s proposal for Finland’s new Natural Gas Market Act was approved by the parliament in summer 2017. According to the Finland’s new Natural Gas Market Act, the Finnish gas market will be opened up as of the beginning of 2020.

Preparation of gas market rules has been done in working groups with customers, the Ministry of Economic Affairs and Employment, Energy Authority, Gasum, Baltic Connector Oy and other stakeholders. English translations (non-binding version) of shipper-related market rules will be published in May-June 2019.

Gasum has organized information events on the topic on May 15th, November 29th 2017 and October 5th 2018 in Helsinki, Finland. The aim of the work is to prepare national rules for Natural Gas Market, that will enable a well-functioning, non-discriminatory and cost-effective national market. Preparations for open gas market has continued with workshops related to data exchance definitions during autumn 2018. Public consultation regarding market rules and contracts was held in March-April 2019. Finalised rules will be published in June 2019.

Shipper-info event about Finnish open gas market

Finnish Gas Transmission Services and Gasum TSO organization will hold a shipper-information event in English on the 4th of June 2019 at Revontulenpuisto 2 C, Espoo, Finland and via skype at 12.00-14.30 Finnish time.


  • Timeline for market opening
  • Shipper-related market rules and contracts
  • Registering process
  • Data exchange
  • Capacity booking

Target audience is non-Finnish speaking stakeholders interested in shipper’s side of Finnish open gas market starting 1st Jan 2020. Content of the info is a shipper-focused extract from info session held 21st May in Finnish in Helsinki. If interested, please ask for calendar invite from Ville Rahkonen (Development Manager, Gasum TSO) Please confirm participation by 28th May.

Gas transmission tariff

The Finnish gas transmission system operator (TSO) with system responsibility held a public consultation between February 15 and March 31, 2019 on the new gas transmission tariffs. The document presented the preliminary transmission charges proposed at the TSO’s entry and exit points, excluding international connections, in the natural gas system. In addition to the transmission charges, the document described charges other than transmission charges and the criteria for them. Finalised tariffs will be published by 30th June 2019.

  • Consultation document preliminary tariffs (pdf)

Following proposals to amend the Natural Gas Market Act, the rights to set transmission charges to international connections, has been given to the regulatory authority (Finnish Energy Authority). Energy Authority held a public consultation with the same timeframe.

Consultation event on the new gas transmission tariff on Friday 15.3.2019

The transmission system operator with system responsibility held a consultation event on the new gas transmission tariff for stakeholders in Helsinki on March 15. Material of the event can be found on the info materials page.


Janne Grönlund
Chief Operating Officer, TSO, Gasum Oy​

t. +358 400 368 825 janne.gronlund(at)

Ville Rahkonen
Development manager, TSO, Gasum Oy
Program manager for market opening ​

t. +358 40 719 9831 ville.rahkonen(at)

Tiina Niinimäki
Business developer, TSO, Gasum Oy
IT project manager​

t. +358 40 592 7042 tiina.niinimaki(at)