The market operator informs that the pan-European Member testing for the 15-minute products implementation project on the day-ahead electricity market will take place from September 8 to September 11, 2025 on the Sandbox2 testing environment.

The official project information package is available for download here.

The go-live of the 15-Minute Market Time Unit (MTU) in SDAC is scheduled for 30 September 2025, with the first delivery date on 1 October 2025.

We would also like to remind you of the possibility of participate on local testing in the Sandbox2 test environment available from August 11, 2025, at least twice a week (Tuesday and Thursday).

In case of higher interest (higher number of orders placed in the OTE system), DAM sessions can be executed more often.

More information about testing can be found on the Sandbox2 testing environment noticeboard.