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  • Use of access to cross-border transmission capacity

    Regarding the calculation and adjustment of allowable hourly export and import volumes  from/to Burshtyn TPP island and the IPS of Ukraine

    Taking into account the operational information on the condition of the generating equipment of Burshtyn TPP and the operational information on the operational safety of the IPS of Ukraine, PrJSC NPC Ukrenergo calculates and adjusts the allowable hourly export and import volumes from/to Burshtyn TPP island and the IPS of Ukraine with regard to each operator of external flows (exporters and importers) on a proportional basis in accordance with the allocated cross-border transmission capacity under cross-border directions of Burshtyn TPP island and the IPS of Ukraine.

    The following regulatory acts are used during the operation:

    1. The Law of Ukraine On Electricity Market. Article 38. General principles of congestion management: “2. If the scheduled commercial exchanges do not correspond to the safe operation of the power grid, the transmission system operator shall regulate congestion in accordance with the requirements of operational security in the most cost-effective way. The adjusting re-dispatching or countertrade shall be the last resort if cheaper measures cannot be applied”.

    2. Resolution of NEURC dated 03.04.2020 № 763, p. 12.29:

    “12.29. After the expiration of the term of submission by the owners of the physical right for transmission to the auction office for each reserve of daily hourly schedules, the auction office shall check the schedules submitted by each owner of the physical right for transmission.

    If it is necessary to curtail the physical right for transmission in the cases provided for in this section, all schedules submitted by the owners he physical right for transmission shall be adjusted on a proportional basis to the specified limit values in the following order:

    1) daily hourly schedules for the use of the physical right for transmission acquired as a result of daily auctions;

    2) daily hourly schedules for the use of the physical right for transmission acquired as a result of monthly auctions;

    3) daily hourly schedules for the use of the physical right for transmission acquired as a result of the yearly auction;

    4) daily hourly schedules for the use of the physical right for transmission, for which priority access is granted.”

    Taking into account the peculiarities of the operation of Burshtyn TPP island, the IPS of Ukraine, and the power system of the Republic of Poland, and in case of providing the users of allocated transmission capacity with hourly daily schedules that cannot be provided by Burshtyn TPP or Dobrotvirska TPP due to technical reasons such as normal load rate, impossibility to stop units for night-time valley with rising in the morning, impossibility to ensure the start-up time of power units depending on thermal condition and other technical issues, the auction office shall adjust hourly daily schedules submitted by the users of allocated transmission capacity for export and/or import operations to ensure sustainable and reliable operation of thermomechanical equipment of Burshtyn TPP and Dobrotvirska TPP”.

    3. Resolution of NEURC dated 14.03.2019 “Transmission system code” section 5.

    Terms and conditions described in the Contract on access to cross-border transmission capacity of electric networks of Ukraine (paragraphs 4.1.1., 4.1.2. and Annex 3 to the Contract):
    1).

    1. Before 09:00 D-2 – submission of nominations for allocation by participants to electronic auction platform DAMAS (hereinafter – EAP) for D day.
    2. 10:00 D-2 – publication of details of daily auction for D day.
    3. from 13:00 to 13:30 D-2 – daily auctioning for the day.
    4. from 13:30 to 14:00 D-2 – determining the results of the daily auction for D day and sending the results to the auction participants.
    5. from 14:00 to 15:00 D-2 – nomination of daily rights by allocation participants for D day.
    6. before 15:00 D-2 – adjustment of limit values by the auction office * (if necessary).
    7. from 15:00 to 15:30 D-2 – adjustment by the auction office of the received nominations from the exports (for Burshtyn TPP island) in EAP DAMAS;
    8. from 15:00 to 15:30 D-2 – adjustment by the auction office of the received nominations from the imports to limit values (for the IPS of Ukraine) to ensure the operational security.

    The curtailment of the physical right for transmission is carried out on a proportional basis. When determining the amount of curtailment of the physical right for transmission on a proportional basis, rounding of the value to the nearest larger integer for each owner of the physical right for transmission shall be used. The curtailment of the physical right for transmission shall be carried out in the following order:
    * the physical right for transmission acquired as a result of daily auctions;
    * the physical right for transmission acquired as a result of monthly auctions;
    * the physical right for transmission acquired as a result of yearly auction;

    * the physical right for transmission, in respect of which an exemption has been granted.

    1. from 15:30 to 16:30 D-2– coordination of daily nominations between NPC Ukrenergo and neighboring TSOs (for the IPS of Ukraine).
    2. 16:30 D-2 – opening of the gate of adjustment by participants of allocation of long-term and daily export nominations (from Burshtyn TPP island).
    3. 16:30 D-2 – opening of the gate of adjustment by participants of allocation of long-term and daily nominations (for the IPS of Ukraine).
    4. from 08:30 D-1 – closing of the gate of adjustment by the participants of allocation of nominations. 

    There is no possibility for adjustment of nominations for the IPS of Ukraine after 09:30 D-1.

    1. 14:30 D-1– closing of the gate of adjustment by the participants of the allocation of daily nominations based on the results of DAM.
    2. from 09:00 to 15:30 D-1 – adjustment by the auction office of the received export/import nominations for Burshtyn TPP island to the limit values for operational security.
    3. from 15:30 to 16:30 D-1– coordination of all (long-term and daily) nominations between NPC Ukrenergo and neighbouring TSOs (for Burshtyn TPP island).