Integration of energy markets: Definition of LFC blocks for the Continental Europe Synchronous Area
By request from PSE (Polskie Sieci Elektroenergetyczne), the President of the URE (Energy Regulatory Office) has approved The Proposal For The Definition Of LFC Blocks For The Continental Europe Synchronous Area.
LFC (Load-Frequency Control) blocks are defined pursuant to the European SO GL (System Operation Guidelines) regulation[1] which is intended to ensure the operating safety, grid frequency quality and efficient usage of interconnected power grid systems across the EU member states.
The electrical power loads and frequency will be regulated within the defined LFC blocks, along with sourcing of a shared power reserve. The LFC blocks can include one or more LFC areas (being subordinate units).
The Proposal approved by the President of the URE modifies the definitions of LFC blocks due to the integration of the Baltic states to the European electrical power system. This integration was completed in February of 2025. According to the approved Proposal, there are FLC areas and monitoring areas established within the CE SA (Continental Europe Synchronous Area) for Lithuania, Latvia and Estonia, along with a single LFC block which spans all of these Baltic states.
The Proposal to redefine the LFC blocks was developed by the CE SA transmission system operators and approved by all regulatory authorities in the jurisdiction.
[1] Commission Regulation (EU) 2017/1485 of 2 August 2017 establishing a guideline on electricity transmission system operation