ACER's main tasks regarding trans-European gas infrastructure are performed in close cooperation with the national regulatory authorities and the ENTSOs for Electricity and Gas. ACER monitors the implementation of projects creating new interconnector capacity and the Union-wide network-development plans. If ACER identifies inconsistencies between those plans and their implementation, the Agency investigates and makes recommendations to the transmission system operators, regulatory authorities or other competent bodies concerned.
Each year, promoters of projects of common interest report to ACER their progress. Based on these inputs, ACER produces a consolidated annual report which highlights the development, construction and commissioning of the projects, as well as possible delays and difficulties in their implementation across Europe.
ACER fosters a proper assessment of the projects of common interest in terms of contribution to market integration, competition, security of supply and sustainability.