We would like to inform CS OTE users that CS OTE (including automatic communication) will be unavailable on Wednesday, January 31st, 2024 from 7:15 p.m. to 10:30 p.m. due to the implementation of the new optimized CDSDATA format for transmitting measurement data for electricity. However, the OTECOM application will still be available.

After the end of the CS OTE shutdown, it will be possible to use only the new optimized CDSDATA format for transmission of measurement data for electricity, while all data in CDSDATA format will be sent to market participants from CS OTE systém only in the new optimized CDSDATA format. We remind that from December 1st, 2023, market participants can test the transmission and reception of data in the new optimized CDSDATA format in the test environment SANDBOX.

At the same time, please note that on January 31st, 2024, from 4:00 p.m. to 7:15 p.m., CS OTE system will exceptionally not receive measurement data.

Thank you for your understanding and we apologize for any inconvenience.