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New MV/150/400 kV Step-Up Substation and Its Interconnection to the HETS in Desfina, Phocis

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New MV/150/400 kV Step-Up Substation and Its Interconnection to the HETS in Desfina, Phocis

Requirements

The development of a "hub" to serve the connection of energy projects in the wider area with the Hellenic Electricity Transmission System (HETS).

Client

TERNA ENERGY

TERNA ENERGY


Challenges

The geomorphologically and geotechnically demanding terrain, combined with the lack of available suitable land for development, posed significant challenges for the establishment of the "hub." More specifically, it was necessary to identify sufficient and appropriate space for the development of the Substation, which would also facilitate its connection to the HETS, while maintaining the robustness and reliability of the grid.

Method of project completion

A multiparametric design and siting of the various substation facilities, with a focus on both the constructability of the substation and its connection to the HETS. Great emphasis was placed on the clear definition of the construction phases of the high-voltage and extra-high-voltage transmission lines, starting from the preliminary study stage.

Related Services

  • Preliminary Suitability Studies

The client received the overall design of the “hub,” including the substation and its interconnection with the HETS, with clearly defined construction phases, ensuring constructability of the project and preservation of system reliability at every stage.

  • Starting Date

    November 2024

  • Project Completion

    May 2025

  • Industry

    Power plant development companies

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