To be among the most efficient electricity transmission system operators in Europe, delivering added value to all stakeholders while promoting sustainable development. We are committed to respecting people and the environment, always working for the benefit of system users and society as a whole.
The commitment to continuously enhance the economic, environmental, and social value, lies at the core of IPTO’s activities. The Operator prioritizes sustainable development by implementing initiatives that support society, promote sustainability, and positively impact both the environment and the economy.
Not all hours are the same for the environment! Download the IPTO Analytics mobile app to track in real time how green the energy we produce and consume is at any given moment.

5 billion euros of investments
till 2030

378 Substations

23 Extra High Voltage Centers

12.000 km overhead (OHL) lines

2.000 Employees

1.500 km submarine and
underground cables
The dynamic map depicts the 400 KV transmission lines and Greece's interconnections with the islands and with foreign countries Italy, Albania, Northern Macedonia, Bulgaria and Turkey.
Lines by voltage level (colors)
Additional data for all lines and trends