Alstom to connect Greek Cycladic islands to ENTSO-E interconnected network

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Alstom has been awarded a contract of approximately €35 million by the Greek Transmission Utility Independent Power Transmission Operator (IPTO) for the turnkey supply of four gas-insulated substations (GIS) in Greece. The project will connect three Cycladic islands – Mykonos, Paros and Syros – directly to mainland Lavrion, located in the southeastern coast of Attica, Greece. 

The project aim is threefold: to sustainably meet energy demand on the Cycladic islands throughout high-demand summer seasons; to phase out dedicated fuel-powered generation plants on Cycladic islands in line with EU directives, such as reducing gas emissions; and finally, to lower the cost of energy in the Cycladic islands by connecting them to power plants on the mainland. 

Alstom will supply three GIS substations (170 kV) to replace small existing power plants on the islands of Mykonos, Paros and Syros. These substations will be connected to a fourth substation, also to be supplied by Alstom, in Lavrion near Attica. The turnkey project includes design and manufacturing of Alstom equipment such as GIS, transformers, reactors, capacitors and Agile digital substation automation system. Equipment will be manufactured from Alstom units in Switzerland, France, Finland and Turkey. 

Armand Pineda, Vice President West Europe and Africa of Alstom, said, “Alstom is proud to contribute to this major strategic development, connecting Cycladic islands to mainland Greece as part of the interconnected transmission network of ENTSO-E [1] for sustainable energy transmission. Alstom is dedicated to the development of infrastructure projects for clean energy.” 

Alstom has been present in Greece since 1923, and is a key player in the local transport and energy markets. 

About Alstom

Alstom is a global leader in the world of power generation, power transmission and rail infrastructure and sets the benchmark for innovative and environmentally friendly technologies. Alstom builds the fastest train and the highest capacity automated metro in the world, provides turnkey integrated power plant solutions and associated services for a wide variety of energy sources, including hydro, nuclear, gas, coal and wind, and it offers a wide range of solutions for power transmission, with a focus on smart grids. The Group employs 93,000 people in around 100 countries. It had sales of over €20 billion and booked €21.5 billion in orders in 2013/14. 

Alstom Grid has one clear vision: to develop innovative solutions for a flexible, reliable, affordable and sustainable electrical grid, everywhere. We design, manufacture, install and service the power transmission and distribution products and systems that empower the planet’s low carbon economy... for now and for the future.

Alstom Grid has over 130 years’ experience and ranks among the top three in the electrical transmission sector with an annual sales turnover of €3.8 billion. Alstom Grid’s 17,000 employees are spread across 87 manufacturing and engineering sites worldwide and have one common mission: be our customers’ trusted partner, from the source to the city.

We are energising a smarter world… with Alstom. 

Press Contacts 

Daniela Pradella (Alstom Italy) – Tel: + +39 22 43 48 44 93; 

Aline Besselièvre (Alstom Grid) – Tel: +33 1 49 01 67 60;

Elizabeth Wang (Alstom Grid) – Tel: +33 1 49 01 61 23;



[1] ENTSO-E (European Network of Transmission System Operators for Electricity) represents all electric TSOs in the EU and others connected to their networks, for all regions, and for all their technical market issues.

Image caption: Alstom signed a contract with IPTO to connect Greek Cycladic islands to ENTSO-E interconnected network

Photo credit: Theodoros and Athanasios Anagnostopouloi OE