Both EU-SysFlex and OneNet directly address TSO-level challenges in grid coordination, flexibility dispatch, and secure system operation across interconnected European networks.
POLSKIE SIECI ELEKTROENERGETYCZNE SPOLKA AKCYJNA
Poland's national electricity transmission operator, specializing in grid flexibility, cross-border market design, and TSO-DSO coordination across Europe.
Their core work
PSE SA is Poland's national transmission system operator (TSO), responsible for managing and developing the country's high-voltage electricity grid and ensuring the security of Poland's power supply. In H2020 projects, they contributed operational expertise in large-scale grid management, cross-border electricity flows, and market design — the kind of hands-on system knowledge that academic partners cannot replicate. Their role in European research projects centers on translating grid operational realities into policy and technical frameworks: what works in theory must also work when you are balancing supply and demand across 400kV lines in real time. As a national TSO, PSE SA also plays a regulatory interface role, connecting EU-level energy market rules with national implementation.
What they specialise in
EU-SysFlex (2017–2022) focused specifically on coordinated use of flexibilities — demand response, storage, and distributed generation — to support large-scale renewable integration.
EU-SysFlex keywords include electricity market design and cross-border collaboration, reflecting PSE SA's role in shaping how interconnected national markets exchange capacity and services.
OneNet (2020–2024) introduced distribution systems and consumers as keywords alongside transmission, signalling PSE SA's expanding work on TSO-DSO interface and end-user participation in grid services.
EU-SysFlex keywords include needs of regulation and codes and standards, consistent with a TSO's statutory role in implementing and shaping network codes at EU and national level.
How they've shifted over time
In their earlier H2020 work (EU-SysFlex, starting 2017), PSE SA focused on the pan-European challenge of integrating large shares of renewable energy through flexible resources — the emphasis was on market design, cross-border coordination mechanisms, and regulatory frameworks needed to make flexibility tradeable across borders. By 2020 (OneNet), the focus shifted inward toward the architecture of national networks themselves: how transmission and distribution systems interact, and how consumers become active participants rather than passive loads. The trajectory is clear: from high-level pan-European market and regulatory frameworks toward the operational and structural integration of the full network stack, including the distribution edge and end users.
PSE SA is moving from purely transmission-level market coordination toward multi-level network architecture — future collaborations involving smart grids, virtual power plants, or consumer-facing grid services will find a partner with both the operational authority and the emerging research experience to bridge TSO and DSO worlds.
How they like to work
PSE SA participates exclusively as a consortium partner — they have never led a project as coordinator in H2020, which is typical for national TSOs that contribute operational infrastructure and regulatory insight rather than driving research agendas. They operate within very large consortia (130 unique partners across 23 countries from just 2 projects), consistent with the pan-European scale of grid research. Working with PSE SA means accessing a nationally authoritative voice on Polish grid operations and a direct link to regulatory implementation, but you should expect them to play a contributing rather than directing role in project governance.
PSE SA has built a surprisingly broad network for an organization with only two projects — 130 unique partners across 23 countries, reflecting the pan-European consortium structures typical of large energy infrastructure projects like EU-SysFlex. Their network is European in character, spanning both Western and Central-Eastern EU member states, which gives them strong connectivity among TSOs, research institutes, and energy regulators continent-wide.
What sets them apart
PSE SA is one of the few H2020 participants that brings statutory national grid authority to a research consortium — they do not just study transmission systems, they operate one, and that operational credibility is difficult to substitute. For any project that needs validation against real grid conditions in Central-Eastern Europe, or that requires alignment with national regulatory and market frameworks, PSE SA offers a direct line to how policy becomes practice in Poland's 400kV network. Their combination of large-consortium experience and regulatory standing makes them particularly valuable for projects aiming at replicable, policy-ready outcomes rather than purely academic outputs.
Highlights from their portfolio
- EU-SysFlexThe largest and most complex of PSE SA's H2020 engagements (EUR 773,261; 2017–2022), addressing pan-European flexibility coordination for renewable integration — a flagship project directly shaping EU grid policy and network codes.
- OneNetMarked PSE SA's expansion into TSO-DSO coordination and active consumer roles, signalling strategic interest in the next frontier of grid management beyond pure transmission operations.