Structure of transmission sector
2.2.1 The transmission grid is 110kV and above and consists of 245 lines with a total length of 13,445km. The sole TSO, Polskie Sieci Elektroenergetyczne S.A. (PSE), is a fully state-owned joint stock company and owner of all the transmission assets. PSE transmission activities are regulated under a licence issued by the president of the Energy Regulatory Authority (ERA President or Regulator).
2.2.2 PSE is responsible for:
- security of supply;
- managing grid traffic on the transmission grid;
- operating, maintaining and repairing the grid;
- ensuring long-term capability of the power system to meet justified needs relating to electricity transmission in domestic and cross-border trading;
- dispatching the capacity of generation units connected to the transmission grid and/or if connected to a coordinated 100kV grid with a capacity of 50MW or more;
- managing the transmission capacity of interconnections with other power systems; and
- balancing the power system and settling the central trade balancing mechanism.
2.2.3 Connection to the transmission grid is regulated by the Act on Energy Law dated 10 April 1997 (Energy Law) and secondary legislation dealing with interconnection. In accordance with the terms of the grid code for the transmission grid, Instruction of Transmission System Operation and Maintenance (IRiESP) (please refer also to sections 3.3.11 – 3.3.12), the TSO must connect all entities, including generators, to its network on a non-discriminatory basis, provided that the connection is technically and economically feasible and the applicant satisfies the requirements for connection. The grid connection procedure consists of two stages. In the first stage the entity applies for the grid connection conditions specifying mostly technical issues determining the obligations of the parties in order to make the grid connection possible and then the parties enter into a detailed grid connection agreement, which specifies all the obligations of the parties, in particular with respect to the payment of the grid connection fee and deadlines for the grid connection.
2.2.4 Generally, generators are charged the full cost of their connection (excluding the cost of development and modernisation of the grid). Tariffs for use of the network are set by the TSO, but must first be approved by the Regulator.
Cross-border issues
2.2.5 Cross-border transfers of electricity in Poland are carried out by the TSO. The national transmission system is interconnected with the German, Czech and Slovak systems, whose TSOs are part of the European Network of Transmission System Operators for Electricity (ENTSO-E), as well as with Belarus, Sweden, Ukraine and Lithuania.
2.2.6 Belarus: The Polish grid is connected with facilities in Belarus, however, this is currently not operational.
2.2.7 Sweden: Due to increasing trade dynamics on the Polish Power Exchange (POLPX), resulting in increased liquidity since December 2010, the Polish grid also has a cross-border connection with the Scandinavian market. This is done through a market coupling mechanism in implicit auctions. Available capacity on the high voltage (450kV) direct current cable connection between Poland and Sweden (SwePol Link) is equivalent to 600MW.
2.2.8 Ukraine: In September 2011, a capacity allocation mechanism was initiated at the Polish-Ukrainian interconnector. The interconnection is a single-track 220kV line between Zamość and Dobrotvir. The available transmission capacity is allocated among market participants through monthly unilateral (from Ukraine to Poland) explicit auctions.
2.2.9 Lithuania: In October 2007, the Baltic States Transmission System Operators (which comprised, at that time, Estonia, Latvia and Lithuania) and PSE entered into a cooperation arrangement that obliged the TSOs to operate the Baltic Power Systems synchronously with former UCTE countries via the Poland – Lithuania interconnection. The 440kV double-track interconnector between Poland and Lithuania is planned to be commissioned in 2015.
2.2.10 CEE region: The availability and allocation of the transmission capacity is determined by the TSO. Transmission capacity at interconnectors with CEE region countries is made available by PSE under the coordinated explicit auctions organised and managed by the Central Allocation Office GmbH (located in Freising, Germany) (CAO) established by Central and Eastern Europe TSOs in 2008. System users may reserve cross-border interconnection capacity based on yearly, monthly and daily auctions and, thanks to coordinated auctions organised by CAO, it is possible to reserve capacity throughout the CEE region.
2.2.11 The largest amount of transmission capacity was reserved by the market participants at the German and Czech borders. The biggest volume of actual transmission in 2012 was directed from Poland to the Czech Republic and Slovakia, while most of the physical flow came from Germany. Congestion management on the high-voltage direct current link between Poland and Sweden – SwePol Link – is solved through the market coupling mechanism (implicit auctions). The capacity is allocated by the power exchanges (POLPX and Nord Pool Spot AS) on a one day-ahead basis. In 2013, the average hourly capacity allocated for export from Poland amounted to 133MW and 398MW for imports.
2.2.12 Further integration: On 28 January 2013, representatives of the Czech, Slovak, Hungarian, Polish and Romanian regulators and TSOs agreed on structured cooperation to investigate and prepare for the integration of the day-ahead electricity markets of their five countries (market coupling). The TSOs agreed to launch a common project that would assess possible ways forward and identify the most suitable and efficient form of market integration.
2.2.13 The Polish energy policy up to 2030 highlights the need to improve cross-border transmission capacity in order to make market coupling possible and for Poland to take part in the creation of the single European electricity market. The plans include the construction of new interconnectors (e.g. with Germany and Lithuania), upgrading of existing transmission lines and strengthening of the distribution grids.
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