For registered participants: CS OTE Portal Sandbox CZ

Transition to a 15-minute settlement period for the electricity commodity from July 1, 2024 in the Czech Republic

With effect from July 1, 2024, the Czech Republic will switch to a 15-minute clearing and settlement period for the electricity commodity. Documents relating to modifications to the market operator's information system in connection with this change, including anticipated modifications to external interfaces in connection with the transition to a 15-minute settlement and trading interval in the Czech Republic from the market operator's point of view, are continuously published on this website. Below is also the testing plan and the expected GoLive plan for the implementation of new functionalities in connection with the transition to a 15-minute settlement period for the electricity commodity.

XSD templates and WSDL valid on CS OTE production environment from 1 February 2024.
DESCRIPTION FILES TO DOWNLOAD
XML message formats D1.4.2 XML formats

XML specifications (XSD templates)

D1.4.2 XSD formats
WSDL templates for automatic communication D1.4.2 WSDL templates
Specification of XML formats according to ETSO. The specific application for OTE purposes is described in document D1.4.4 Automatic communication https://www.entsoe.eu/
Examples of XML messages Examples of XML messages
Supporting documents in connection with the transition to the 15-minute settlement period
DESCRIPTION FILES TO DOWNLOAD
A document containing changes to the CDSDATA communication format interface and message formats for markets and settlement for a settlement period of 15 minutes. The document also includes answers to questions raised in the webinar and held on 18 June 2020, or sent to spot-markets@ote-cr.cz.

CDSDATA communication format and Markets and Clearing for the 15-minute settlement period

The last update was made on 12 June 2023

Overview of the introduction of 15-minute products on short-term electricity markets operated by OTE
Download the overview here

Documentation for TDD electricity - 15 minutes (valid from 01.07.2024)

TDD documentation (czech only)
Webinars

Presentation from the webinar held on March 7, 2024 - Information on changes in the short-term electricity markets for 2024/25 in relation to the introduction of a 15-minute trading period in the Czech Republic, intraday auctions, and 15-minute settlement imbalance.

Presentation available here

Presentation from the webinar held on February 13,.2024 - the new CS OTE framework in the areas related to EAN OPM master data transfer and measurement data transfer in the new universal interface in a 15-minute period.

Presentation available here (czech only)

Presentation from the webinar held on 21.11.2023 - new CDSDATA formatQuestions and answers from the webinar on 21.11.2023

Presentation available here (czech only)

Q&A available here (czech only)

Presentation from the webinar held on 21 June 2023 

Note: outdated - please follow the document files from webinars located above for the latest information.

Presentation.pptx (czech only)

Questions and answers about the transition to 15-minute interval

Questions and answers (updated 15/03/2024).pdf(czech only)

Documentation
DESCRIPTION FILES TO DOWNLOAD
XML specifications (XSD templates) XSD templates DT-IDA-ZO-FZ_v2.0.zip are available on the page of 15-minute period sandbox
Web services interface in version 2.3. CS OTE External Interface - Web Services are available on the page of 15-minute period sandbox
Message formats for DT, IDA, ZO and FZ External interface CS OTE - Message formats for DT, IDA, ZO, FZ, CDS,ERD
Message formats Electricity CDSDATA communication format for a settlement period of 15 minutes
Message formats Gas Will be added later
Message formats POZE Will be added later

XML generator with waveform data in optimized CDSDATA format for 60 min. period

EXCEL_GENERATOR_od_1_2_2024.zip

Expected GoLive implementation plan for new functionalities in connection with the transition to the 15-minute settlement interval for the electricity commodity

Effective date from: Functionality

implemented from February 1, 2024

GoLive optimized CDSDATA format 1)
New CDS interface (60min), including a new ""resolution"" attribute for period identification

June 13, 2024
(delivery date June 14, 2024)

GoLive new framework and interface for markets (60min)
- Daily Market (60min)
- Intraday Auctions (60 min)
- Markets and Imbalances Settlement (60min)
- RRD - Registration of realization diagrams (60 min)

30 June 2024

GoLive CDS-electricity, i.e. new framework + new CDS interface (15/60min)
GoLive public OTE website (15/60min)

30 June 2024

GoLive of the new interface (15 min) for markets and imbalances settlement (in the new framework from June 12, 2024)
- Intraday auctions (15 min)
- Markets and Imbalances Settlement (60min)
- RRD - Registration of realization diagrams (15 min)
- Intraday market (15 + 60 min)
- Financial hedging (15 + 60 min)

26 November 2024

GoLive new framework of other parts of CS OTE (POZE, RÚT registration, Complaints, CDS-gas)

Q1 2025 2)

GoLive Daily Market (15/60 min)

1) All CDSDATA messages sent from 01.02.2024 must be in the new format !!! For the period until 30.6.2024, messages will be sent in the new format, but still with an hourly interval, i.e. attribute "" resolution "" = ""PT60M"".
For the period from July 1, 2024, messages will be sent in a new format, but already with a quarter-hour interval, i.e. with the attribute ""resolution"" = ""PT15M"".

2) the date will be specified

Expected Testing Timeline

Date Functionality

March 18, 2024 - May 30, 2024

E2E communication tests of the new universal 15/60min interface for data transfer via CDSDATA format (15min period) - VIA ONLY AUTOMATION COMMUNICATION, no webportal at this moment

April 15, 2024 - May 3, 2024

E2E tests new interface for markets (15/60 min period) in an already new framework - Intraday Auctions

April 15, 2024 - May 17, 2024

E2E tests NEW WEB PORTAL - PDT masterdata transfer via web portal

April 22, 2024 - April 30, 2024

E2E tests NEW WEB PORTAL - profil metering data via web portal

April 22, 2024 - May 3, 2024

E2E tests new framework and interface for the Day-Ahead Market (60min period)

April 29, 2024 - May 17, 2024

E2E tests - bulk data processing (15/60min period) - aggregation, clearing, prediction
May 6, 2024 - May 31, 2024 E2E tests new interface for markets (15/60min period) in an already new framework
- Settlement of markets and imbalance periods (without settlement of continuous markets)
- RRD - Registration of realization diagrams (15min period)

*

May 27, 2024 - May 31, 2024

E2E tests - Continuous Intraday Electricity Market (15/60 min period)
June 3, 2024 - June 7, 2024

E2E tests - Intraday Gas Market

(testing changes in CS OTE, OTECOM Gas application remains unchanged)

June 3, 2024 - June 28, 2024 E2E tests - OTE public website (15/60min period)
June 3, 2024 - June 28, 2024 E2E tests - Financial Security/Hedging (15/60min period)
October 1, 2024 - October 31, 2024 E2E tests - new framework for other parts of CS OTE (RES, PID registration, Complaints, CDS-gas)
November 1, 2024 - December 31, 2024 E2E tests - Day-Ahead Market (15/60min period)

Further information is provided in the individual documents on this website.

* can be started later, but no later than 20.5.2024. The ending is expected on 5/31/2024