News

26 June 2025, 16:30

Update of Guideline on participation in Polish capacity market for foreign capacity providers

PSE S.A. published an updated document entitled: “Guideline on participation in Polish capacity market for foreign capacity providers”. Starting from July 2025, foreign units begin to perform the capacity obligation in the Polish capacity market. This updated document describes the main rules regarding the participation of foreign capacity providers in the Polish capacity market and also covers the processes regarding...

29 May 2025, 15:59

Consultations on the draft of the Revision Sheet No. RRM/Z/13/2025 to the Capacity Market Rules

Polskie Sieci Elektroenergetyczne S.A., acting as the operator within the Act of 8 December 2017 on Capacity Market (Journal of Laws of 2025, item 610), commenced consultation process on 29 May 2025 regarding amendments to the Capacity Market Rules arising from Revision Sheet No. RRM/Z/13/2025. Detailed information regarding the consultation process is available at ...

26 March 2025, 09:23

Publication of the manual for filling out applications for certification for the supplementary auction

PSE S.A. has published a document titled: “Portal Uczestnika Rynku Mocy User Manual. Certification process for supplementary auction”. The document is available at: https://www.pse.pl/web/pse-eng/areas-of-activity/capacity-market/certification-for-auction

12 March 2025, 15:37

Schedule of certification for the supplementary auction for the delivery period from 1 July 2025 to 31 December 2025

PSE S.A. has published details of the schedule for certification for the supplementary auction for the delivery period from 1 July 2025 to 31 December 2025. Detailed schedule for certification for the supplementary auction for the delivery period from 1 July 2025 to 31 December 2025: Start of certification for the auction – 26 March 2025 Submission of certification applications – until 1 April 2025 (inclusive) Review of...

24 February 2025, 15:15

PSE announces pre-auctions for the supplementary auction for the delivery period from 1 July 2025 to 31 December 2025

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"), according to Section 5.2.2.3 of the Capacity Market Rules as amended, announces the starting and closing dates and times of the pre-auctions for the supplementary auction for delivery period from 1 July 2025 to 31...

9 February 2025, 13:30

Estonian, Latvian, and Lithuanian power systems successfully synchronised with Continental Europe

Estonia, Latvia, and Lithuania have successfully synchronised their electricity systems with the Continental Europe Synchronous Area on 9 February 2025 at 13:05 CET. This is a key milestone for the Baltic States and for Europe strengthening the energy resilience and independence across the region. Estonia, Latvia, and Lithuania have successfully synchronised their electricity systems with the Continental Europe Synchronous Area...

3 February 2025, 12:00

Strengthened protection of the Poland – Lithuania interconnetion

nnetion PSE helicopters patrol the route of the LitPol Link, the electricity interconnection between Poland and Lithuania, which will be used for he synchronisation of the power systems of Estonia, Latvia and Lithuania with the system of Continental Europe. LitPol Link has been operational since 2015 and connects the Elk Bis substation in Poland and the Alytus substation in Lithuania. This 400 kV...

8 November 2024, 14:07

Detailed certification schedule for additional auctions for each quarter of 2026

According to Section 3.2.1 of the Capacity Market Rules, Polskie Sieci Elektroenergetyczne S.A has published a detailed schedule of certification for additional auctions for each quarter of 2026. Applications for auctions certification can be submitted from November 21 to December 4, 2024, inclusive. Detailed information is available under the " Certification for auction " section.

6 November 2024, 19:31

PSE has announced system stress events on capacity market for Wednesday, November 6, 2024

Polish Transmission System Operator (PSE) informs that it has announced system stress events on capacity market for Wednesday, November 6, 2024, during specified hours. The announcement of system stress events means that all capacity providers with capacity obligations resulting from capacity agreements must fulfill these obligations by delivering the required power to the system during the specified period. Capacity...

13 August 2024, 15:38

PSE announces pre-auction for the main auction for delivery year 2029 and pre-auctions for the additional auctions for individual quarters of delivery year 2026

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, hereinafter referred to as the "Act"), according to Section 5.2.2.3 of the Capacity Market Rules, announces the starting and closing dates and times of the pre-auctions for the: Main auction for delivery year 2029 for: the zone, referred to in Article 6(6)(1) of...

22 July 2024, 10:08

Polish and Slovak transmission system operators performed restoration tests after blackout

Polskie Sieci Elektroenergetyczne S.A. (PSE) together with Slovenská Elektrizačná Prenosová Sústava, a.s. (SEPS), TSOs of Poland and Slovakia, performed on the 14th and 24th of June 2024 restoration tests in Top-Down approach with support from neighboring TSO. The restoration tests aimed to verify the possibility of efficient and quick implementation of procedures for restoring the power supply to the power system after...

15 July 2024, 09:49

PSE and Litgrid signed cooperation agreement to build Harmony Link interconnector as overland line

PSE and Litgrid, transmission system operators in Poland and Lithuania, respectively, signed an agreement on cooperation on the implementation of Harmony Link interconnector as an overland line. The agreement establishes the general basis of cooperation between PSE and Litgrid for implementing the Harmony Link project. The project involves construction of the new double-circuit 220 kV alternating current (AC) interconnection...

28 June 2024, 09:11

Harmony Link onshore AC interconnector confirmed as technically feasible

The results of a power flows and dynamic feasibility study confirmed that the Harmony Link onshore AC electricity interconnector between Lithuania and Poland can be a viable technical alternative to offshore HVDC link. The study was carried out by the Institute of Power Engineering, Gdansk Division, Poland, on behalf of the Lithuanian, Polish, Latvian, and Estonian transmission system operators (TSOs). ...

7 May 2024, 15:26

Integration of Electricity Markets in Europe. Expert Discussion with ACER Director

How the process of electricity markets integration should be conducted? This was discussed by participants at a roundtable held on May 6 at the headquarters of Polskie Sieci Elektroenergetyczne in Konstancin-Jeziorna. The discussion was attended by representatives of the Polish and European central administration, including the Agency for Cooperation of Energy Regulators, the Ministry of Climate and Environment,...

11 December 2023, 15:58

PSE took part in the Baltic Sea Leaders meeting

Polish transmission system operator PSE took part in the Baltic Sea Leaders (BSL) meeting, which took place on December 8th in Stockholm. Participants discussed, among other issues, the adequacy situation in the region and grid development plans. BSL meetings take place on a regular basis and supports cooperation between TSOs in the Baltic Sea region. The Baltic Sea region has...

13 November 2023, 10:00

Litgrid and PSE are considering an alternative for the new Polish-Lithuanian interconnection

Lithuanian and Polish electricity transmission system operators Litgrid and PSE are considering various alternatives for the planned new electricity interconnection between Lithuania and Poland. Due to a significant increase in costs and overbooked DC cable and converter station production slots, the procurements for the planned Harmony Link HVDC interconnection were terminated in April 2023. Immediately after this...

17 August 2023, 11:17

PSE announces pre-auction for the main auction for delivery year 2028 and pre-auctions for the additional auctions for individual quarters of delivery year 2025

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 2021, item 1854 as amended, hereinafter referred to as the "Act"), according to Section 5.2.2.3 of the Capacity Market Rules, announces the starting and closing dates and times of the pre-auctions for the: Main auction for delivery year 2028 for: the zone, referred to in Article...

19 April 2023, 17:03

TSO information on the test session of the SDAC decoupling training session with MPs planned for May 11, 2023 - UPDATE

PSE S.A. reminds that under the Single Day-Ahead Markets Coupling (SDAC) the date of annual tests of the SDAC Decoupling training session with Market Participants has been set. The purpose of the planned tests is to create for all parties involved, the possibility of confirming that they are properly prepared to handle the above-mentioned Decoupling training. Below is a link to the updated JAO announcement: SDAC Decoupling training session...

30 November 2022, 14:52

SIDC - Successful fourth wave go-live

Single Intraday Coupling (SIDC) parties confirm the successful fourth wave go-live integrating Greece and Slovakia, which joined SIDC on 29 November. Intraday trading now extended across 25 countries coupled through SIDC. read more...

14 September 2022, 15:16

TSO information on the SDAC Decoupling training session with MPs planned for October 13, 2022

PSE S.A. informs that within the framework of the Single Day-Ahead Markets Coupling (SDAC) the date of annual tests of the SDAC Decoupling training session with Market Participants has been set. The purpose of the planned tests is to create for all involved parties, the possibility of confirming that they are properly prepared to handle the above-mentioned Decoupling training. A full announcement is attached .

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