Grid operator ADMIE is launching a key 1.42-billion-euro project for the integration of the Dodecanese into the continental high-voltage network, with the proclamation of the tender for the Corinth-Kos electrical interconnection.
The tender process concerns the design, supply and installation of high voltage direct current (HVDC) cable systems, as well as two conversion stations, which will be built at both ends of the interconnection, the Independent Power Transmission Operator (ADMIE) announced.
The budget for the cable part of the interconnection amounts to €630 million, while for the conversion stations to €789.1 million. The assignment of the project will be based on the most advantageous, from a financial point of view, offer. The duration of the construction phase is set at 36 months since the signing of the contract.
This second cable system with direct current (DC) technology to be installed in Greece, after the electricity interconnection of Crete with Attica, will have a transmission capacity of 1,000 megawatts and a total length of 380 kilometers.
Six autonomous electrical systems of the Dodecanese Islands (Karpathos, Rhodes, Symi, Kalymnos, Patmos and Arkoi) will then be connected via the Corinth-Kos interconnection, securing in turn the safe electrification of 10 more islands that are supplied indirectly by medium-voltage cables.
The electrical interconnection of the Dodecanese will offer significant environmental and economic benefits, as it will allow for the gradual withdrawal of the polluting and costly oil-fired power plants operating to date on the non-interconnected islands.
The reduction in the cost of public utilities for all consumers is estimated to amount to up to €3.6 billion for the period from 2029 to 2053. The project has been selected for financing by the Island Decarbonization Fund.
