Further to its communication of 14 February 2025, GME informs market participants that it has published, solely for informational purposes, a new version of the document “New XSD format for block and 15-min bids/offers”, in the TIDE section of its website. The second part of the document (“Stage 2”) describes the changes made in view of the introduction of the 15-min MTU into the MGP. The document also shows the updated XSD formats and the related XML example files for the publication of the results of the MGP after the introduction of 15-min MTUs.

With reference to the expected go-live of 15 min in SDAC, the following events occurred in the past months/weeks supported by unanimous decisions by all NEMOs and all TSOs, via MCSC decision:

1. on 14.02 all NEMOs and TSOs announced during the MCCG meeting that the 15 min Go-live Date will take place on the 11th of June 2025 subject to a MCSC decision on “go-no go” that will be taken within May 2025;
2. on 02.04 all NEMOs and TSOs confirmed, via unanimous MCSC decision, to start testing with market participants after assessing all available information and considering the concerns expressed by certain parties during the meeting;
3. on 07.04 the testing phase with market participants was launched.

It is worth highlighting that the 20% of testing sessions ended in full decoupling is due to internal testing issues of certain parties in the first stage of the testing phase. Such issues, therefore, are not due to the reliability of the relevant MCO systems and procedures supporting 15 min products testing activities. Moreover, despite 15 min MTU constitute a significant challenge for MCO systems, all performance tests of the matching algorithm (Euphemia) have positively been completed showing quality of the results and the computational timings (i.e. “time to first solutions”) fulfil the criteria set in the master test plan. Last but not least, GME considers that any reference to IDAs scenario is completely misleading and inappropriate since all IDAs decouplings have been caused by local issues and the time allocated to IDA execution is less than the 25% of the overall time available for SDAC.

Based on the above considerations the full commitment to respect the obligations originally agreed by all NEMOs and all TSOs must be confirmed both with regard to the timeline of the testing with market participants and the Go-Live Date of 15 min MTU. Therefore, any deviation from the agreed timeline must be considered individual responsibility of the deviating entity.

Further to its communication of 14 February 2025, GME is hereby providing the timetable of blank tests, which will involve GME, TERNA and market participants, in view of the go-live of products with a 15-minute Market Time Unit (MTU) in the Day-Ahead Market/Single Day-Ahead Coupling on the trading day of 11 June 2025 (delivery on 12 June). The test sessions will enable participants to test products with a market time interval of 15 and 30 minutes, in addition to the already available products with a market time interval of 60 minutes.

Planning of testing activities - general information

Testing activities will take place in the period from 31 March to 5 June. The digital platforms of GME, involved in the tests, will be: PCE, IPEX, and LTS. The detailed programme of activities will be communicated through an appropriate notice on the above-mentioned platforms. For any queries concerning the test sessions, feel free to contact GME at prove@mercatoelettrico.org

How to access the test platforms

For participation in the tests, the digital test platforms of GME will be available from 27 March 2025 at the following addresses:

https://proveipex.ipex.it/euwa (IPEX portal)

https://proveipex.ipex.it/euws/service.asmx (MGP/MI web service)

https://proveipex.ipex.it/euwsmsd/service.asmx (MSD/MB web service)

https://provepce.ipex.it/ceuserinterface (PCE portal)

https://provepce.ipex.it/ceuserinterfacews/service.asmx (PCE WS)

https://provelts-pn.ipex.it/ltsweb (LTS portal)

https://provelts-pn.ipex.it/ltsws/service.asmx (LTS web service)

https://provelts-pn.ipex.it/ltswebapi/swagger/index.html (LTS API)

On the above-mentioned platforms, information about users and identification data of market participants will be aligned with that already present on the live platforms of GME as of 23 March 2025.Users that have not yet been enabled for the test platforms may register with the same platforms from 27 March 2025, by sending an appropriate request to prove@mercatoelettrico.orgThe data entered during the tests will not be used for operational purposes.The supporting documents for the tests are available on the home page of the PCE and IPEX test platforms.

Following its communication of 14 February 2025, GME announces that, on 26 March at 10:30, it will hold a webinar focused on updates to its digital platforms and on procedures for conducting blank tests with participants in the Electricity Market and in the Forward Account Registration Platform, in preparation for the introduction of the 15-minute MTU into the MGP.

Registrations for the webinar – to be held via Microsoft Teams - will be accepted until 12:00 on 25 March 2025.

To access the webinar, participants are required to register by filling out the appropriate online form.Registered participants will receive the technical details for attending the webinar.The following is the detailed programme of the webinar.

Webinar with market participants

Wednesday 26 March 2025

AGENDA

Following the notice date 19 January 2018, it is hereby announced that the "time window" relating to the collection of data on the monthly storage and transit capacity of mineral oils referred to the second quarter of 2025, is scheduled between 1st and 22nd April 2025 from Monday to Friday, from 09:30 am to 5:30 pm.Specifically, in the aforementioned period, the persons subject to the notification obligation referred to in Article 2, paragraph 2.1, of the Ministerial Decree of 5 July 2017, no. 17433, are required to send to GME - through the Mineral-oil storage and transit capacity data reporting platform (PDC-oil) – the data on the monthly storage and transit capacity of mineral oils referred to the period May-August 2025.Please note that, as provided for by the Ministry of Economic Development with Circular Letter no. 0014614 dated 05 June 2018, the notification of data relating to LPG depots for automotive purposes is excluded from the monthly data collection of the monthly storage and transit capacity of mineral oils.

The parties subject to the notification obligation which are not yet registered on the PDC-oil must access the platform and carry out the registration procedure described in the “PDC-oil participant’s guide”.For further information, please contact the following e-mail address logistica@mercatoelettrico.org or contact the telephone numbers 06 8012 4337/4500. Circular Letter no. 1612 of 19 January 2018Annex A Monthly Collection of Available Storage CapacityAnnex B Monthly Collection of Available Transit Capacity

Following the provisions of the Ministry of Ecological Transition (MITE) in the Circular no. 37679 of 27.02.2025, interested parties are hereby informed that, in the period between 1 March and 31 March 2025, by accessing the Mineral-oil storage and transit capacity data reporting platform (PDC-oil), parties subjected to the notification obligation referred to in Article 21, paragraph 21.2, of Legislative Decree 249/2012 (obliged parties), are required to send GME the data concerning the situation of the logistical capacity in their availability as of 31 December 2024.

For all the above communication purposes, the PDC-oil will be operational from Monday to Friday, from 9:30am to 5:30pm during the period indicated.

To access the PDC-Oil, parties already registered may access the IT system by using their user ID and password and notify the aforementioned data by following the procedure described in the “PDC-OIL PARTICIPANT’S GUIDE”.

Obliged parties not yet registered in the PDC-Oil may access the PDC-oil and carry out the registration procedure described in the “PDC-OIL PARTICIPANT’S GUIDE”.

For further information, please contact the following e-mail address logistica@mercatoelettrico.org or the telephone numbers 06 8012 4337/4500.Visit the “Fuel Markets/PDC-oil” section.

GME informs Market Participants that it will organise blank tests in order to allow parties interested in offering local flexibility services to the DSO Areti S.p.A. to test the features of the Local Forward Flexibility Market (MLT-Flex). The tests will take place according to the following procedure and timetable.

Days and hours of the tests

MLT-FLEX

Blank tests will be held on GME’s test platform (https://prove-romeflex.ipex.it) on 20th February in the following hours:

1. sitting for submission of offers: from 09:00 to 12:00;
2. determination of preliminary results and their notification to participants: by 12:30
3. determination of final results and their notifications to participants: by 13:00.

The tests may be attended by all BSPs who/which have been admitted to the MLF by GME and who/which have also been enabled by Areti S.p.A. To access the test platform, these BSPs may use the credentials already received during the previous test session. New credentials and information about the test sessions may be requested by writing to proveme@mercatoelettrico.org.

Requests for participation in the tests by BSPs who/which have not yet been admitted to the MLF by GME, or who/which have not yet been enabled by Areti S.p.A., may be sent to proveme@mercatoelettrico.org.

Further details about the tests will be available on the test platform.

Transactions carried out during the blank tests will not be binding and will not give rise to any obligation.

For additional information, write to proveme@mercatoelettrico.org

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.