Central European Summer Time Change
On Sunday, March 29, 2026, at 2:00 a.m., there will be a change from Central European Time (CET) to Central European Summer Time (CEST). This means that at 2:00 a.m. CET, the clocks will move forward ...
News
Market Participants Consultation – Preparation of SDAC Fallback Concept
OKTE, a.s., as a Nominated Electricity Market Operator (NEMO) and a member of the NEMO Committee, is participating in a joint initiative of European NEMOs and Transmission System Operators (TSOs) ...
Commencement of the public consultation on change to the OKTE, a.s. Operation Order (11)
Commencement of the public consultation on change to the OKTE, a.s. Operation Order OKTE, a.s. announces that on March 13th, 2026, a public consultation began, concerning the upcoming changes to the ...
Cancellation of the Guarantees of Origin for the year 2025 by 31st of March 2026
The company OKTE, a.s. would like to inform you about the approaching deadline for the application of guarantees of origin for the year 2025 by 31.03.2026. If the guarantees of origin are not ...
New OKTE, a.s. Operation Order (effective from March 1st 2026)
On 01. 03. 2026, new change to the Operation Order of OKTE, a.s., which was approved as by the Regulatory Office for Network Industries on 26. 02. 2026, will take effect. The decision on the new ...
Electronic Signing of Contracts in the IS EDC
Dear Market Participants, We would like to inform you that, effective as of 17th February 2026, a new functionality enabling electronic signing of contracts is available in the EDC system. The ...
Exchange of client certificates for XMtrade®/ISZO and XMtrade®/ISOT systems on 17th February 2026
The exchange of client certificates XMtrade ISZO - PSEUDONYM and XMtrade ISOT - PSEUDONYM is planned during the service outage on 17th February 2026 (5:00 PM - 9:00 PM). Changes include only ...
Exchange of server certificate *.okte.sk on 3/3/2026
Exchange of server certificate is planned during the service outage on March 3rd 2026 (5:00 PM - 9:00 PM): PLEASE BE AWARE that not only the certificate but also the certification authority will ...
Announcement of the MCCG Meeting – 2026, March 04
OKTE, a.s. would like to inform market participants about the upcoming Market Coupling Consultative Group (MCCG) workshop, to be held online. Date & Time: 4th March 2026Location: online The MCCG ...
Evaluation of the public consultation on change to the OKTE, a.s. Operation Order (10)
OKTE, a.s. announces that from 14. 01. 2026 to 28. 01. 2026 a public consultation was held concerning the proposed changes to the operational order of the short-term electricity market ...
The twenty-fourth auction for guarantees of origin
OKTE, as the organizer of the short-term electricity market (OKTE, a.s.), would like to inform you about the announcement of the twenty-fourth electronic auction for guarantees of origin of ...
Commencement of the public consultation on change to the OKTE, a.s. Operation Order (10)
OKTE, a.s. announces that on January 14th, 2026, a public consultation began, concerning the upcoming changes to the operational order of the short-term electricity market operator according to the ...
Evaluation of the public consultation on Technical specification of the external interface v1.23
OKTE, a.s. announces that from December 10, 2025 to December 20, 2025 a public consultation was held concerning the Technical specification of the external interface v1.23. One market participant ...
Launch of the NEMO Transparency Platform
OKTE, a.s., together with the Nominated Electricity Market Operators (NEMOs) GME, HENEX, OMIE and OTE, announces the launch of the joint initiative NEMO Transparency Platform. The platform aims to ...
Commencement of the public consultation on change to the Technical specification of the external interface ISOT
OKTE, a.s. announces that on December 10, 2025, a public consultation began, concerning the upcoming changes to the technical specification of external interface. The change is related to the ...
New OKTE, a.s. Operation Order (effective from September 30th 2025 / January 1st 2026)
On 30. 09. 2025 resp. 01. 01. 2026, new change to the Operation Order of OKTE, a.s., which was approved as by the Regulatory Office for Network Industries on 27. 11. 2025, will take effect. The ...
Announcement of ZPE System Maintenance
The GO registry will not be available from December 1, 2025 to December 6, 2025. On the above dates, the submission and approval of applications for issuance, as well as the transfer of guarantees of ...
Launch of the New Loop-Block Product from 3 December 2025
OKTE informs market participants that the new Loop-Block product is planned to be launched on 3 December 2025, with the first trading day on 4 December 2025. Loop-Block is an innovative block-order ...
Updated Fallback Manual for the Day-Ahead Market
OKTE, a.s. informs market participants that an updated version of the SDAC Fallback Manual (Single Day-Ahead Coupling) has been published. The new version 1.1 is Applicable from 18th of November 2025 ...
Registration for Loop-blocks Testing
OKTE, a.s. invites market participants to take part in the testing of a new product for the Day-Ahead Market, which will be available in the production environment from December 3, 2025, with the ...