Ten-year Network Development Plan

Development of the Hellenic Electricity Transmission System (HETS)

The development of the Hellenic Electricity Transmission System (HETS) is one of the main duties of IPTO, in the framework of its role as Operator of the HETS.

The development of the System includes the planning and implementation of significant investments in order to ensure on the one hand the country's supply with electricity in an adequate, safe, efficient and reliable manner, and on the other, the long-term capability of the System to meet electricity transmission needs, on economically viable terms, to the benefit of society and the environment.

The main vehicle for the planning and scheduling of these investments is the Ten-year Network Development Plan (TYNDP). According to the provisions of Law 4001/2011 and the Grid Code, IPTO prepares and issues the Ten-year Network Development Plan for Greece, which has a rolling nature and is issued on an annual basis.

The Ten-year Network Development Plan includes the System development projects for each reference period, including the necessary infrastructures for RES penetration, as well as the time frames and the estimated cash flows for their implementation.

IPTO on 31.03.2020 submitted for approval to RAE the TYNDP of HETS for the period 2021 –  2030.

ΔΠΑ 2021-2030

ΔΠΑ 2021-2030 Παράρτημα Ι

ΔΠΑ 2021-2030 Χάρτης Συστήματος

IPTO, following its invitation from 31.12.2019 to 31.01.2020 for participation in the public consultation of the Preliminary Plan of the TYNDP of HETS for the period 2021 – 2030, publishes the relevant letters submitted during the consultation as well as a table summarizing IPTO’s comments on the received letters.

IPTO thanks the participants for their substantial contribution to the public consultation.


Βαγενάς Δημήτριος




Comment table:

Σχόλια Διαβούλευσης επί του Προκαταρκτικού Σχεδίου ΔΠΑ 2021 – 2030



ΔΠΑ 2020-2029

ΔΠΑ 2020-2029 Παράρτημα Ι

ΔΠΑ 2020-2029 Χάρτης Συστήματος