News

19.10.2026

Invitation to Testing – Guarantees of Origin Auctions

We are continuing to develop the Guarantees of Origin system and, in preparation for the upcoming implementation regulation, we are ready to launch the Guarantees of Origin Auctions module. Before its official launch, we would like to offer holders of an account in

the Guarantees of Origin Registry the opportunity to test the module's functionality in a secure testing environment.

Testing for holders of an active account in the Guarantees of Origin Registry will take place from 10 November 2026 to 16 November 2026. If you are interested in participating in the testing of the GO Auctions module, please contact the Market Operator by e-mail at zaruka@ote-cr.cz no later than 30 October 2026.

Please include the following information in your e-mail:

  • RÚT ID
  • Bank account number in IBAN format (no financial transactions will be carried out during the testing; however, the "bank account details" field must be completed)
  • Account currency
  • Persons registered in CS OTE who will participate in the testing. Please note that to participate in the tests, these people must have the relevant certificate uploaded in the Sandbox.

Detailed testing instructions will be sent to registered participants during the week starting 2 November 2026.

Should you have any questions, please do not hesitate to contact us at zaruka@ote-cr.cz or via the telephone numbers listed on our website.

Please note that participation in the testing does not automatically entitle participants to take part in the live Guarantees of Origin Auctions. To participate in the auctions after their official launch, it is necessary to have a contractual relationship established with OTE, a.s. Further details are available here. The start date of live operation of the Guarantees of Origin Auctions will be announced following the issuance of the relevant implementing regulation.