Quality of network gas
The quality requirements for network gas provide guidelines for defining the quality indicators of gas injected into and transmitted through the transmission system.
The aim of the quality requirements is to ensure:
- compliance of the quality of network gas with the properties of gas suitable for use in existing gas appliances;
- preventing damage to gas networks and appliances from corrosive liquids and pollutants;
- the possibility of introducing gas from new supply sources that meet the quality requirements into the gas transmission system.
The quality requirements are set out in section 19 of the Grid Code on the Functioning of the Electricity System and the appendix to the Grid Code.
Quality of gas injected into the transmission system
The system operator applies requirements to the quality of gas injected into the system, which arise from the current regulation of the Minister of Economic Affairs and Infrastructure “Grid Code on the Functioning of the Electricity System”.
Producer’s obligations regarding the quality of gas:
- The producer must ensure that the gas it injects into the transmission system at any given time meets the quality requirements and does not contain hazardous substances. In the case of biomethane injection, the periodicity of submission of the declaration of conformity or certificate of conformity and the permitted limit values for hazardous substances are agreed upon by the producer and the system operator based on the standard EVS-EN 16723-1. If the gas injected by the producer does not meet the quality requirements for gas or contains substances hazardous to health, the system operator has the right to restrict and, if necessary, prevent the injection of gas into the transmission system.
- Before opening the initial gas flow or introducing new raw materials, the producer must submit to the system operator a declaration of conformity or certificate of conformity issued by an accredited institution based on laboratory analyses of the gas produced from raw materials, a risk analysis of the production process, and the requirements set out in the standards regarding substances hazardous to health, property, and the environment.
- If the connection contract provides for several different raw materials for gas production, the producer is obligated to immediately inform the system operator of any changes in the raw materials used for gas production. The system operator’s control centre must be notified of any changes in the raw material in a format which can be reproduced in writing three working days before replacing the raw material used for gas production.
- In order to introduce a new raw material into a production installation connected to the gas network, the producer must submit a notice regarding the change in the type of raw material of gas at least 30 days before the introduction of the new raw material in accordance with the data form to be submitted in addition to the connection application in the case of generation-oriented connection set out in section 1.1 of appendix 1 to the Connection Conditions, and enter into an agreement to amend the connection and/or network contract. Before introducing new raw materials, the producer must also submit the results of the gas conformity assessment to the system operator in accordance with the conditions set out in section 3.8.7.4 of the Connection Conditions.
- New raw materials mean raw materials whose production facility has not been agreed upon in the connection contract.
Natural gas quality certificatenistus
The quality certificate is published on the first working day following the end of the accounting month.
Natural gas quality certificate 2025
Natural gas quality certificate 2025
Natural gas quality certificate September 2025.pdf (Maagaasi kvaliteeditunnistus september 2025.pdf)
Natural gas quality certificate August 2025.pdf (Maagaasi kvaliteeditunnistus august 2025.pdf)
Natural gas quality certificate July 2025.pdf (Maagaasi kvaliteeditunnistus juuli 2025.pdf)
Natural gas quality certificate June 2025.pdf (Maagaasi kvaliteeditunnistus juuni 2025.pdf)
Natural gas quality certificate May 2025.pdf (Maagaasi kvaliteeditunnistus mai 2025.pdf)
Natural gas quality certificate April 2025.pdf (Maagaasi kvaliteeditunnistus aprill 2025.pdf)
Natural gas quality certificate March 2025.pdf (Maagaasi kvaliteeditunnistus märts 2025.pdf)
Natural gas quality certificate February 2025.pdf (Maagaasi kvaliteeditunnistus veebruar 2025.pdf)
Natural gas quality certificate January 2025.pdf (Maagaasi kvaliteeditunnistus jaanuar 2025.pdf)
Maagaasi kvaliteeditunnistus 2024
Maagaasi kvaliteeditunnistus 2024
Natural gas quality certificate December 2024.pdf (Maagaasi kvaliteeditunnistus detsember 2024.pdf)
Natural gas quality certificate November 2024.pdf (Maagaasi kvaliteeditunnistus november 2024.pdf)
Natural gas quality certificate October 2024.pdf (Maagaasi kvaliteeditunnistus oktoober 2024.pdf)
Natural gas quality certificate September 2024.pdf (Maagaasi kvaliteeditunnistus september 2024.pdf)
Natural gas quality certificate August 2024.pdf (Maagaasi kvaliteeditunnistus august 2024.pdf)
Natural gas quality certificate July 2024.pdf (Maagaasi kvaliteeditunnistus juuli 2024.pdf)
Natural gas quality certificate June 2024.pdf (Maagaasi kvaliteeditunnistus juuni 2024.pdf)
Natural gas quality certificate May 2024.pdf (Maagaasi kvaliteeditunnistus mai 2024.pdf)
Natural gas quality certificate April 2024.pdf (Maagaasi kvaliteeditunnistus aprill 2024.pdf)
Natural gas quality certificate March 2024.pdf (Maagaasi kvaliteeditunnistus märts 2024.pdf)
Natural gas quality certificate February 2024.pdf (Maagaasi kvaliteeditunnistus veebruar 2024.pdf)
Natural gas quality certificate January 2024.pdf (Maagaasi kvaliteeditunnistus jaanuar 2024.pdf)
Natural gas quality certificate 2023
Natural gas quality certificate 2023
Natural gas quality certificate December 2023.pdf
Natural gas quality certificate November 2023.pdf
Natural gas quality certificate October 2023.pdf
Natural gas quality certificate September 2023.pdf
Natural gas quality certificate August 2023.pdf
Natural gas quality certificate July 2023.pdf
Natural gas quality certificate June 2023.pdf
Natural gas quality certificate May 2023.pdf
Natural gas quality certificate April 2023.pdf
Natural gas quality certificate March 2023.pdf
Natural gas quality certificate February 2023.pdf
Natural gas quality certificate January 2023.pdf
Maagaasi kvaliteeditunnistus detsember 2023.pdf
Maagaasi kvaliteeditunnistus november 2023.pdf
Maagaasi kvaliteeditunnistus oktoober 2023.pdf
Maagaasi kvaliteeditunnistus september 2023.pdf
Maagaasi kvaliteeditunnistus august 2023.pdf
Maagaasi kvaliteeditunnistus juuli 2023.pdf
Maagaasi kvaliteeditunnistus juuni 2023.pdf
Maagaasi kvaliteeditunnistus mai 2023.pdf
Maagaasi kvaliteeditunnistus aprill 2023.pdf
Maagaasi kvaliteeditunnistus märts 2023.pdf
Natural gas quality certificate 2022
Natural gas quality certificate 2022
Natural gas quality certificate December 2022.pdf
Natural gas quality certificate November 2022.pdf
Natural gas quality certificate October 2022.pdf
Natural gas quality certificate September 2022.pdf
Natural gas quality certificate August 2022.pdf
Natural gas quality certificate July 2022.pdf
Natural gas quality certificate June 2022.pdf
Natural gas quality certificate May 2022.pdf
Natural gas quality certificate April 2022.pdf
Natural gas quality certificate March 2022.pdf
Natural gas quality certificate February 2022.pdf
Natural gas quality certificate January 2022.pdf
Maagaasi kvaliteeditunnistus detsember 2022.pdf
Maagaasi kvaliteeditunnistus november 2022.pdf
Maagaasi kvaliteeditunnistus oktoober 2022.pdf
Maagaasi kvaliteeditunnistus september 2022.pdf
Maagaasi kvaliteeditunnistus august 2022.pdf
Maagaasi kvaliteeditunnistus juuli 2022.pdf
Maagaasi kvaliteeditunnistus juuni 2022.pdf
Maagaasi kvaliteeditunnistus mai 2022.pdf
Maagaasi kvaliteeditunnistus aprill 2022.pdf
Maagaasi kvaliteeditunnistus märts 2022.pdf
Natural gas quality certificate 2021
Natural gas quality certificate 2021
Natural gas quality certificate December 2021.pdf
Natural gas quality certificate November 2021.pdf
Natural gas quality certificate October 2021.pdf
Natural gas quality certificate September 2021.pdf
Natural gas quality certificate August 2021.pdf
Natural gas quality certificate July 2021.pdf
Natural gas quality certificate June 2021.pdf
Natural gas quality certificate May 2021.pdf
Natural gas quality certificate April 2021.pdf
Natural gas quality certificate March 2021.pdf
Natural gas quality certificate February 2021.pdf
Natural gas quality certificate January 2021.pdf
Maagaasi kvaliteeditunnistus detsember 2021.pdf
Maagaasi kvaliteeditunnistus november 2021.pdf
Maagaasi kvaliteeditunnistus oktoober 2021.pdf
Maagaasi kvaliteeditunnistus september 2021.pdf
Maagaasi kvaliteeditunnistus august 2021.pdf
Maagaasi kvaliteeditunnistus juuli 2021.pdf
Maagaasi kvaliteeditunnistus juuni 2021.pdf
Maagaasi kvaliteeditunnistus mai 2021.pdf
Maagaasi kvaliteeditunnistus aprill 2021.pdf
Maagaasi kvaliteeditunnistus märts 2021.pdf
Natural gas quality certificate 2020
Natural gas quality certificate 2020
Natural gas quality certificate December 2020.pdf
Natural gas quality certificate November 2020.pdf
Natural gas quality certificate October 2020.pdf
Natural gas quality certificate September 2020.pdf
Natural gas quality certificate August 2020.pdf
Natural gas quality certificate July 2020.pdf
Natural gas quality certificate June 2020.pdf
Natural gas quality certificate May 2020.pdf
Natural gas quality certificate April 2020.pdf
Natural gas quality certificate March 2020.pdf
Natural gas quality certificate February 2020.pdf
Natural gas quality certificate January 2020.pdf
Maagaasi kvaliteeditunnistus detsember 2020.pdf
Maagaasi kvaliteeditunnistus november 2020.pdf
Maagaasi kvaliteeditunnistus oktoober 2020.pdf
Maagaasi kvaliteeditunnistus september 2020.pdf
Maagaasi kvaliteeditunnistus august 2020.pdf
Maagaasi kvaliteeditunnistus juuli 2020.pdf
Maagaasi kvaliteeditunnistus juuni 2020.pdf
Maagaasi kvaliteeditunnistus mai 2020.pdf
Maagaasi kvaliteeditunnistus aprill 2020.pdf
Maagaasi kvaliteeditunnistus märts 2020.pdf
Natural gas quality certificate 2019
Natural gas quality certificate 2019
Natural gas quality certificate December 2019_0.pdf
Natural gas quality certificate November 2019.pdf
Natural gas quality certificate October 2019.pdf
Natural gas quality certificate September 2019.pdf
Natural gas quality certificate August 2019.pdf
Natural gas quality certificate July 2019.pdf
Natural gas quality certificate June 2019.pdf
Natural gas quality certificate May 2019.pdf
Natural gas quality certificate April 2019.pdf
Natural gas quality certificate March 2019.pdf
Natural gas quality certificate February 2019.pdf
Natural gas quality certificate January 2019.pdf
Maagaasi kvaliteeditunnistus detsember 2019_0.pdf
Maagaasi kvaliteeditunnistus november 2019.pdf
Maagaasi kvaliteeditunnistus oktoober 2019.pdf
Maagaasi kvaliteeditunnistus september 2019.pdf
Maagaasi kvaliteeditunnistus august 2019.pdf
Maagaasi kvaliteeditunnistus juuli 2019.pdf
Maagaasi kvaliteeditunnistus juuni 2019.pdf
Maagaasi kvaliteeditunnistus mai 2019.pdf
Maagaasi kvaliteeditunnistus aprill 2019.pdf
Maagaasi kvaliteeditunnistus märts 2019.pdf
Natural gas quality certificate 2018
Natural gas quality certificate 2018
Natural gas quality certificate December 2018.pdf
Natural gas quality certificate November 2018.pdf
Natural gas quality certificate October 2018.pdf
Natural gas quality certificate September 2018.pdf
Natural gas quality certificate August 2018.pdf
Natural gas quality certificate July 2018.pdf
Natural gas quality certificate June 2018.pdf
Natural gas quality certificate May 2018.pdf
Natural gas quality certificate April 2018.pdf
Natural gas quality certificate March 2018_0.pdf (added on 13 April 2018)
PS! Due to problems encountered during the renovation work at Värska GMS, the calorific value number on the natural gas quality certificate for March added to the website in the beginning of April was not correct. This error has been corrected in the version added to the website on 13 April. We apologise for any inconvenience caused by Elering.
Natural gas quality certificate February 2018.pdf
Natural gas quality certificate January 2018.pdf
Maagaasi kvaliteeditunnistus detsember 2018.pdf
Maagaasi kvaliteeditunnistus november 2018.pdf
Maagaasi kvaliteeditunnistus oktoober 2018.pdf
Maagaasi kvaliteeditunnistus september 2018.pdf
Maagaasi kvaliteeditunnistus august 2018.pdf
Maagaasi kvaliteeditunnistus juuli 2018.pdf
Maagaasi kvaliteeditunnistus juuni 2018.pdf
Maagaasi kvaliteeditunnistus mai 2018.pdf
Maagaasi kvaliteeditunnistus aprill 2018.pdf
Maagaasi kvaliteeditunnistus märts 2018_0.pdf (lisatud 13.04.2018)
PS: seoses Värska GMJ renoveerimistööde käigus esinenud probleemidega ei olnud aprilli alguses veebilehele lisatud märtsi maagaasi kvaliteeditunnistusel toodud kütteväärtuse number korrektne. 13. aprillil veebilehele lisatud versioonis on see viga kõrvaldatud. Vabandame Eleringi poolt põhjustatud võimalike ebameeldivuste pärast.
Natural gas quality certificate 2017
Natural gas quality certificate 2017
Natural gas quality certificate December 2017.pdf
Natural gas quality certificate November 2017_1.pdf
Natural gas quality certificate October 2017.pdf
Natural gas quality certificate September 2017.pdf
Natural gas quality certificate August 2017.pdf
Natural gas quality certificate July 2017.pdf
Natural gas quality certificate June 2017.pdf
Natural gas quality certificate May 2017.pdf
Natural gas quality certificate April 2017.pdf
Natural gas quality certificate March 2017.pdf
Natural gas quality certificate February 2017.pdf
Natural gas quality certificate January 2017.pdf
Maagaasi kvaliteeditunnistus detsember 2017.pdf
Maagaasi kvaliteeditunnistus november 2017_1.pdf
Maagaasi kvaliteeditunnistus oktoober 2017.pdf
Maagaasi kvaliteeditunnistus september 2017.pdf
Maagaasi kvaliteeditunnistus august 2017.pdf
Maagaasi kvaliteeditunnistus juuli 2017.pdf
Maagaasi kvaliteeditunnistus juuni 2017.pdf
Maagaasi-kvaliteeditunnistus-mai-2017.pdf
Maagaasi-kvaliteeditunnistus-aprill-2017.pdf
Maagaasi-kvaliteeditunnistus-märts-2017.pdf