PCI and PMI monitoring

The Regulation on guidelines for trans-European energy infrastructure (TEN-E Regulation) was first introduced in 2013 to facilitate the development of European energy networks.

The Regulation was revised in 2022 to align with the goals of the European Green Deal and introduced the concept of projects of mutual interest (PMIs) alongside the existing projects of common interest (PCIs). These are key cross-border infrastructure projects designed to improve network connections between EU Member States (PCIs) or with non-EU countries (PMIs). These projects benefit from accelerated permitting procedures and funding, as they are key to achieving the EU’s energy and climate objectives.

The European Commission is responsible for selecting and publishing a list of these projects every two years (known as the Union list). In 2024, the Commission published the first Union list including both PCIs and PMIs.

ACER monitors and evaluates the implementation progress of PCIs and PMIs based on reports submitted by project promoters and national competent authorities.

In May 2025, ACER published its first interactive dashboard presenting the monitoring findings for both PCIs and PMIs.