Information on ancillary service providers specified in the Registry maintained by the Transmission System Operator "Ukrenergo". The register contains information about the market participant: EIC code, USREOU code, name of organization, location, role of the participant, registration status and contact details, as well as information on contracts concluded for the provision of frequency and active power control service.

Information on the amount of accepted upward and downward balancing electricity and additional services provided such as: Frequency Containment Reserve, Frequency Restoration Reserve and Restoration Reserve by trade zone.