In its press release of 4 August 2025 , Terna (the Italian TSO) announced the time window for blank tests to be held in view of the reconnection to the platform for the exchange of reserve balancing energy to re-establish the automatically activated frequency pursuant to art. 21 of Regulation (EU) 2017/2195 (aFRR Platform); the aFRR platform was developed as part of the PICASSO (Platform for the International Coordination of Automated Frequency Restoration and Stable System Operation) project. Further to the above-mentioned press release, GME informs that it will organise special blank test sessions together with market participants, to enable them to test the new features of the IPEX platform.

GME’s blank test sessions will be held in the period from 20 to 24 October 2025, and from 27 to 31 October 2025.

Additional details about the timing and procedures for the blank tests will be made available on the homepage of GME’s test platform, available at: https://proveipex.ipex.it.

The updated version of the Implementation Guide will be available on the homepage of the test platform at https:// proveipex.ipex.it

All market participants wishing to take part in the tests may access the test platform with the same credentials as those used for the live platforms.

For further queries about the tests and the operation of the platforms, please contact GME at proveME@mercatoelettrico.org.

The data entered by market participants during the blank tests will not be used in any way for operational purposes.

Having received a request of activation of a trading session of the MLT-Flex from the DSO Unareti S.p.A., GME informs Market Participants, under art. 23, para. 23.2 of the MLF Regulations, that:

1. the trading session will be held on 26/08/2025;
2. the preliminary information about the MLT-Flex session, necessary for carrying out the trades, will be made available in the MLF information system on 25/08/2025;
3. the sitting for submission of offers will be opened at 10:00 on 26/08/2025;
4. the sitting for submission of offers will be closed at 15:00 on 26/08/2025;
5. the preliminary results of the session will be communicated and published in the MLF information system within 14:00 on 27/08/2025;
6. the final results of the session, after the technical validation of offers by the DSO, will be communicated and published within 12:00 on 28/08/2025.

With reference to GME's Consultation Document No. 1/2025 on the proposed design of the market for trading PPA contracts (MPPA), in order to facilitate the widest participation by stakeholders in the consultative process, the deadline for submitting comments is extended to July 24, 2025.

All interested parties are invited to submit their comments in writing to GME’s Governance Department, info@mercatoelettrico.org, by July 24^th  2025 (end date of this consultation).

Parties wishing to keep all or part of their documents confidential are invited to specify which parts of their documents are to be kept confidential.

Consultation Document no. 1/2025

Update of Technical Rules no. 07 and no. 18 MGAS and of the IG Index GME methodology

GME informs market participants that, on 1 October 2025, the new version of Technical Rule no. 07 MGAS – Types of Contracts, Duration of the Trading Period and Cascading Mechanism will enter into force. This Technical Rule has been amended to update the reference timetable for trading spot products in the natural-gas market (hereafter: MGAS) and the related naming conventions.

With the changes introduced, in particular, the working and non-working days included in the products will always be harmonised with those of the products traded on the main European trading platforms, eliminating the differences that currently exist during some holiday periods (e.g., Easter, Christmas), thereby enabling market participants to optimise their trading and hedging strategies.

GME will thus adopt a reference timetable based on the British timetable, which will be published on GME’s website and in the MGAS platform (hereafter: MGAS reference timetable) and is also provided below for informational purposes only. At the same time, a new spot product will be introduced into the MGAS, the “Working Days Next Week”, which will complement the Week-End product. In particular, the updated version of Technical Rule no. 07 MGAS, published below for informational purposes only, will involve the following changes within the MGP-GAS:

1. redefinition of the week-end contract (hereafter: WE), which normally includes the gas-days corresponding to Saturday and Sunday, but may also include the gas-days preceding and/or following Saturday and Sunday, if such days are regarded as holidays according to the MGAS reference timetable (e.g.: the Easter WE will consist of 4 gas-days, from Good Friday to Easter Monday;
2. redefinition of daily contracts, which normally include the gas-days G+1, G+2, and G+3. However, if the market session takes place on a gas-day G, which is a working day according to the MGAS reference timetable and is followed by at least three holidays, the daily contracts tradable in the MGAS will be those referring to periods until the first working gas-day following the last holiday, G+4 or beyond (e.g., on Thursday before Easter, the G+5 product, corresponding to Tuesday after Easter, will be available);
3. introduction of the “Working Days Next Week” contract (hereafter: WK/DY NW), with a delivery period equal to the individual consecutive gas-days, consisting of the set of the working days, according to the MGAS reference timetable, from Monday to Friday of the week following the one in which the contract is traded. If Saturday or Sunday are preceded and/or followed by holidays, according to the MGAS reference timetable, such days will not be included in the WK/DY NW product.

In this regard, it is worth pointing out that the above products will also be available on Trayport with the naming conventions (DA, WE, WK/DY NW, Monday, Tuesday, etc.) adopted on the main European exchanges, as indicated in the MGAS reference timetable.

Moreover, beginning on 1 October 2025, consistently with the changes made to Technical Rule no. 07 MGAS, the following documents will be published on GME’s website and enter into force:

1. the new version of the document containing the Calculation method of the Italian Gas Index IGI, which has been amended to align the listing of the IGI with the new naming conventions for the products tradable in the MGAS;
2. the updated version of Technical Rule no. 18 MGAS - Market Making Activity; this version now provides that the Market Making activity will take place on the days and in the time window during which the IGI will be listed, i.e. on the working days defined in the MGAS reference timetable. These documents are provided below for informational purposes only. In this regard, it is worth noting that, if a Market-Making participant does not want to accept the changes and additions made to Technical Rule no. 18 MGAS and its Annexes, he/she/it may terminate the “Participation Agreement for carrying out the Market Making Activity referred to in Article 27 of the Natural-Gas Market Rules” under article 2, subpara. a) thereof, by sending an appropriate notice under the established procedure and to the address indicated therein.

For further details, please refer, for informational purposes only, to the new versions of:

1. Technical Rule no. 07 MGAS
2. Technical Rule no. 18 MGAS
3. Document containing the Calculation method of the Italian Gas Index IGI
4. MGAS reference timetable.

GME’s Newsletter no. 194 - July 2025

Please note that that, as of 30 September 2025, the FTP channel, currently used to access the data available in the “Results” section of Gestore dei Mercati Energetici S.p.A.’s website, will be decommissioned.

From that date onwards, the above-mentioned data will be exclusively available via the FTPS (File Transfer Protocol Secure) channel, already active at FTPS://download.ipex.it.

All users of the FTP channel are kindly invited to update their configurations and migrate to the FTPS protocol (using the same credentials currently associated with the FTP) as soon as possible to ensure uninterrupted access to the service.

Additional details will be provided via an appropriate communication sent by e-mail to already registered users.

For further clarifications or assistance, please contact GME’s ICT support service at Sistemi@mercatoelettrico.org

GME and GSE announce that an informational seminar (in webinar format) will be held on Wednesday, 16 July 2025, at 15:00.

The webinar will be focused on the consultation documents regarding:

1. the design of GME’s platform for trading PPA contracts (PPA Market - MPPA);
2. the Operating Rules and GSE’s role as a last-resort guarantor.

Participation Requirements

The webinar will take place on the Microsoft Teams Platform. Participation in the webinar requires registration, to be completed by 12:00 (noon) on Tuesday, 15 July 2025, via the appropriate online form. The technical details for access to the webinar will be provided to registered participants.

Agenda:

Webinar with Market Participants

16 July 2025 at 15:00

AGENDA

Following some reports received by telephone and email to Gestore dei Mercati Energetici S.p.A. ("GME"), it seems that these telephone calls are made by a supposed "GME Office" and/or so-called GME operators, regarding proposals to change the electricity and/or gas supplier due to increases in cost of energy, not properly specified, or problems in the current supply, which were followed, in some cases, by emails with similar content.

It should be remembered that GME is completely unrelated to the event mentioned above. We would like to clearly state that we do not provide, in any way, commercial services such as those described above. Furthermore, we do not use communication methods with our clients such as those outlined above.

When in doubt, we always suggest to make sure of the above by contacting your current electricity and/or gas supplier according to the contact methods made available by the same. In any case, we suggest to avoid any possible follow up about proposals such as those highlighted above, in order not to face any unpleasant inconveniences.