The Hellenic Electricity Distribution Network Operator (Greek: Διαχειριστής Ελληνικού Δικτύου Διανομής Ηλεκτρικής Ενέργειας, or ΔΕΔΔΗΕ was formed by the separation of the Distribution Department of Greece's Public Power Corporation in order to comply with the 2009/72/EC EU Directive relative to the electricity market organization. The mission of this company is to undertake the tasks of the Distribution Network Operator of Greece.

It is a 100% subsidiary of PPC, however, it is independent in operation and management, retaining all the independence requirements that are incorporated within the above mentioned legislative framework