Koumoundourou HVC reconstruction

The reconstruction of Koumoundourou HVC in Attica is a “turn-key” project, for the replacement and expansion of existing switching devices of 150 kV and 400 kV with cutting-edge GIS equipment, the addition of two autotransformers and five compensation self-inductors.

The new HVC will be supplying 21 Transmission Lines of 150 kV and 4 Transmission Lines of 400 kV, taking over a significant share of the electricity load in Athens basin.

There is also provision for the installation of an integrated digital system regarding the control, protection, measurement, signaling and telecommunications with IPTO’s remote Energy Control Center, which will be covering all 400/150/30 kV equipment; existing and new.

The project comprises new key infrastructure of the Transmission System, whereby the direct current cable between Attica-Crete (via the -under construction- Koumoundourou Converter Station) as well as the Eastern Corridor of Peloponnese (Megalopolis-Corinth-Attica), will be interconnected.

By replacing the obsolete equipment, the project will improve the reliability of electricity supply in Western Attica, will contribute to the reduction of HETS’ total losses and -with the expansion of the existing system- will create a strong connection between production centers and high load areas in Attica Basin.

In terms of funding, the project has been proposed by the Greek side for inclusion in the Recovery and Resilience Facility, along with the new Corinth-Koumoundourou Transmission Line, for 30 million euros.

Benefits

Improves the reliability of electricity supply in Western Attica

Creates a strong connection between the production centers and high load areas in Attica Basin

Contributes to the reduction of HETS’ total losses

Project's Timeline
4/21
Contract Signing
9/23
Estimated Completion