Notifications

System Date Subject Category
ISOT 5/20/2026 (IDA_JOINT_07): IDA Partial Decoupling Market participants
Due to technical reasons or market issues, the following VB are decoupled from the IDA auction 1 21.05.2026:
? OMIE
? EPEX – BSP – COREIDA
? EPEX – HUPX – CORE IDA
? EPEX – IDA
? OTE
? EMCO – Nord Pool IDA NORDIC BALTIC
? EMCO – Nord Pool IDA CORE
? EMCO – IBEX - IDA
? EMCO – CROPEX – IDA
? EMCO – BRM IDA
? OPCOM – OKTE
? OPCOM
? TGE – Poland – IDA
ISZO 5/20/2026 Off-take and supply balance was published Others
Off-take and supply balance for the trading day (21.05.2026 - 21.05.2026) was published on the ISZO portal.
ISZO 5/20/2026 Registration closure of daily diagrams Daily diagram reception
Registration of daily diagrams for the trading day 21.05.2026 - 21.05.2026 was closed.
ISOT 5/20/2026 Matching results on the day-ahead market published
The results of matching on the day-ahead market for the next business day were published.
ISOT 5/20/2026 Deadline for orders to the Short Term Market
Was performed Deadline for orders for next business day.
ISZO 5/20/2026 Evaluation of imbalance and RE was published for 19.05.2026 - 19.05.2026 Supply/Demand balance
Preliminary daily evaluation of imbalance and RE for the time (19.05.2026 - 19.05.2026) was published on the ISZO portal.
ISZO 5/19/2026 Off-take and supply balance was published Others
Off-take and supply balance for the trading day (20.05.2026 - 20.05.2026) was published on the ISZO portal.
ISZO 5/19/2026 Registration closure of daily diagrams Daily diagram reception
Registration of daily diagrams for the trading day 20.05.2026 - 20.05.2026 was closed.
ISOT 5/19/2026 Matching results on the day-ahead market published
The results of matching on the day-ahead market for the next business day were published.
ISOT 5/19/2026 Deadline for orders to the Short Term Market
Was performed Deadline for orders for next business day.
ISOT 5/19/2026 IDM: (IDCT_NEMO_07): Maintenance on XBID System Administration
Please be aware that a maintenance on XBID is planned from 26.05.2026 11:00 until 12:30 CEST. During this time, no Cross Border trading is possible.
Another message will be sent as soon as the maintenance is finished and Cross Border Trading will be startup again.
Please be aware that your orders will be deactivated during the maintenance.
Only local matching will be available for Slovak market area during this period.
ISZO 5/19/2026 Evaluation of imbalance and RE was published for 18.05.2026 - 18.05.2026 Supply/Demand balance
Preliminary daily evaluation of imbalance and RE for the time (18.05.2026 - 18.05.2026) was published on the ISZO portal.
ISZO 5/18/2026 Off-take and supply balance was published Others
Off-take and supply balance for the trading day (19.05.2026 - 19.05.2026) was published on the ISZO portal.
ISZO 5/18/2026 Registration closure of daily diagrams Daily diagram reception
Registration of daily diagrams for the trading day 19.05.2026 - 19.05.2026 was closed.
ISOT 5/18/2026 Matching results on the day-ahead market published
The results of matching on the day-ahead market for the next business day were published.
ISOT 5/18/2026 Deadline for orders to the Short Term Market
Was performed Deadline for orders for next business day.
ISZO 5/18/2026 Evaluation of imbalance and RE was published for 17.05.2026 - 17.05.2026 Supply/Demand balance
Preliminary daily evaluation of imbalance and RE for the time (17.05.2026 - 17.05.2026) was published on the ISZO portal.
ISZO 5/17/2026 Off-take and supply balance was published Others
Off-take and supply balance for the trading day (18.05.2026 - 18.05.2026) was published on the ISZO portal.
ISZO 5/17/2026 Registration closure of daily diagrams Daily diagram reception
Registration of daily diagrams for the trading day 18.05.2026 - 18.05.2026 was closed.
ISOT 5/17/2026 (IDA_JOINT_09): IDA Cancelation Others
Due to technical reasons or market issues, the IDA 1 auction 17.05.2026 was cancelled.
ISOT 5/17/2026 Matching results on the day-ahead market published
The results of matching on the day-ahead market for the next business day were published.
ISOT 5/17/2026 Matching results on the day-ahead market published
The results of matching on the day-ahead market for the next business day were published.
ISOT 5/17/2026 SDAC_ExC_03b: Further delay of the Market Coupling Session Short term market results
Please be aware that th SDAC Market Coupling Session is delayed.
Therefore, the Market Coupling Session encounters a risk of Full Decoupling.

If the Final Market Coupling Results are still not available at 14:20, another message will be sent out in order to announce the Full Decoupling.
ISOT 5/17/2026 Cancellation of the Market Results Publication Others
Publication of the Market Results has been cancelled. Please wait for repeated publication of market results.
ISOT 5/17/2026 Matching results on the day-ahead market published
The results of matching on the day-ahead market for the next business day were published.
ISOT 5/17/2026 SDAC_UMM_01a: Delay in final Market Coupling Results publication Short term market results
The Market Coupling process is delayed due to technical reasons or market issues.

Therefore, the publication of the final Market Coupling Results is delayed.
ISOT 5/17/2026 SDAC_ExC_02: Delay in Market Coupling Results publication Short term market results
Please be aware that the publication of the SDAC Market Coupling Results is delayed until further notice.
The Market Coupling Results will be published as soon as they are available.
If needed, another delay message will be sent out.
ISOT 5/17/2026 Deadline for orders to the Short Term Market
Was performed Deadline for orders for next business day.
ISZO 5/17/2026 Evaluation of imbalance and RE was published for 16.05.2026 - 16.05.2026 Supply/Demand balance
Preliminary daily evaluation of imbalance and RE for the time (16.05.2026 - 16.05.2026) was published on the ISZO portal.
ISZO 5/16/2026 Off-take and supply balance was published Others
Off-take and supply balance for the trading day (17.05.2026 - 18.05.2026) was published on the ISZO portal.
ISZO 5/16/2026 Registration closure of daily diagrams Daily diagram reception
Registration of daily diagrams for the trading day 17.05.2026 - 18.05.2026 was closed.
ISOT 5/16/2026 Matching results on the day-ahead market published
The results of matching on the day-ahead market for the next business day were published.
ISOT 5/16/2026 Deadline for orders to the Short Term Market
Was performed Deadline for orders for next business day.
ISZO 5/16/2026 Evaluation of imbalance and RE was published for 15.05.2026 - 15.05.2026 Supply/Demand balance
Preliminary daily evaluation of imbalance and RE for the time (15.05.2026 - 15.05.2026) was published on the ISZO portal.
ISZO 5/15/2026 Adjustment of the ZP coefficient Others
The ZP coefficient was adjusted for the month 6/2026 to value 1..
ISZO 5/15/2026 Off-take and supply balance was published Others
Off-take and supply balance for the trading day (16.05.2026 - 18.05.2026) was published on the ISZO portal.
ISZO 5/15/2026 Registration closure of daily diagrams Daily diagram reception
Registration of daily diagrams for the trading day 16.05.2026 - 18.05.2026 was closed.
ISOT 5/15/2026 Matching results on the day-ahead market published
The results of matching on the day-ahead market for the next business day were published.
ISOT 5/15/2026 Deadline for orders to the Short Term Market
Was performed Deadline for orders for next business day.
ISZO 5/15/2026 Evaluation of imbalance and RE was published for 14.05.2026 - 14.05.2026 Supply/Demand balance
Preliminary daily evaluation of imbalance and RE for the time (14.05.2026 - 14.05.2026) was published on the ISZO portal.
ISZO 5/14/2026 Off-take and supply balance was published Others
Off-take and supply balance for the trading day (15.05.2026 - 15.05.2026) was published on the ISZO portal.
ISZO 5/14/2026 Registration closure of daily diagrams Daily diagram reception
Registration of daily diagrams for the trading day 15.05.2026 - 15.05.2026 was closed.
ISOT 5/14/2026 Matching results on the day-ahead market published
The results of matching on the day-ahead market for the next business day were published.
ISOT 5/14/2026 Deadline for orders to the Short Term Market
Was performed Deadline for orders for next business day.
ISZO 5/14/2026 Evaluation of imbalance and RE was published for 13.05.2026 - 13.05.2026 Supply/Demand balance
Preliminary daily evaluation of imbalance and RE for the time (13.05.2026 - 13.05.2026) was published on the ISZO portal.
ISOT 5/13/2026 IDM: (SIDC_TSO_02): XBID (Re)Opening of Interconnector(s) Administration
The maintenance has finished. The SEPS (SEPS-CEPS, SEPS-MAVIR, SEPS-PLC) Interconnector is (re)opened at 13.05.2026 19:50 CEST.
ISOT 5/13/2026 IDM: (SIDC_TSO_03): XBID Ex ante information on closing of Interconnector(s) Administration
The SEPS (SEPS-CEPS, SEPS-MAVIR, SEPS-PLC) Interconnector WILL BE CLOSED on 13.05.2026 16:15 CEST due to system maintenance until 13.05.2026 20:00 CEST. No capacity allocation will be possible.
Another message will be sent before re-opening.
ISZO 5/13/2026 Off-take and supply balance was published Others
Off-take and supply balance for the trading day (14.05.2026 - 14.05.2026) was published on the ISZO portal.
ISZO 5/13/2026 Registration closure of daily diagrams Daily diagram reception
Registration of daily diagrams for the trading day 14.05.2026 - 14.05.2026 was closed.
ISOT 5/13/2026 (IDA_JOINT_07): IDA Partial Decoupling Others
Due to technical reasons or market issues, the following VB are decoupled from the IDA auction 1

OMIE