ČEPS performs a regular daily evaluation of the availability, actual amount (in MW) and fulfilment of other contractual terms and conditions (primarily the quality) of ancillary services provided. The amount of AnS purchased is compared with actual data from the operational dispatch control system. Evaluation results are continually transferred via the Damas Energy system to individual AnS providers in case of any potential claims.

ČEPS also performs a regular evaluation of the amount (in MWh) and cost of regulation energy provided by individual generating units. This data is transferred daily (together with information on electricity purchased abroad) to the OTE, the electricity and gas market operator, to be used for daily imbalance settlement purposes.