ČEPS, a.s. (Czech TSO) has extended the authorization of the certifier, OSC, a.s. to provide certification measurements for an additional ancillary service System Restoration Capability, as defined in the Czech Grid Code, Part II (October 2026 revision). 

OSC, a.s. is now authorized to perform certification measurements for the following ancillary services (balancing services):

• FCR (Frequency Containment Reserves)
• aFRR (Automatic Frequency Restoration Reserves) 
  Note: The authorization also applies to mFRR and mFRR5 (Manual Frequency Restoration Reserves)
• OP (Island Operation Capability)
• BS (Black Start Capability)
• SOS (System Restoration Capability)