This article zooms in
on an area of EU energy law which relates to a particularly complex and
technical matter, i.e., energy infrastructure planning law, and offers its
systematic overview through the prism of a multi-dimensional principle of
integration. In such a way, the article allows bringing together and explaining
the common logic, normative content and implementation issues pertaining to
several discreet instruments of EU energy infrastructure planning such as
Member State-level network development plans (NDPs), EU-wide ten-year network
development plans (EU-TYNDPs) and the Union list of projects of common and
mutual interest (PCI/PMI list). As part of this exercise, the principle of
integration, its three dimensions and their various aspects are developed in an
effort to provide a helpful analytical framework for assessing the current
state of this body of law and its evolution.