Polskie Sieci Elektroenergetyczne S.A. with its registered office in Konstancin-Jeziorna, acting as the operator within the Act of 8 December 2017 on Capacity Market (i.e. Journal of Laws of 2023, item 2131 as amended, hereinafter referred to as the "Act"), in accordance with Article 29(2a) of the Act, announces that the supplementary auction for the delivery period from 1 January 2026 to 31 December 2026 will be held on 11 September 2025.

According to Section 9.1.4 Capacity Market Rules, the operator will publish the detailed auction schedule no later than 14 days before its start.