According to the Law of Ukraine "On the Electricity Market", the tariff for the services of the supplier of last resort (SLR) is determined on the basis of the results of the competition. Considering that no such competition has been held to date, the tariff for the services of the temporarily appointed SE Ukrinterenergo is established by the NEURC in accordance with the approved methodology, which takes into account the cost-effective costs associated with the special operating regime and the risks of operations, as well as profit margins. The estimated period for fixing tariffs is the calendar quarter. The tariff for SLR services for the estimated period is calculated and established by NEURC on the basis of data on actual electricity prices on the day-ahead market for the first two months of the base period, which are determined by "Market Operator".