Pumped Storage Projects



In the promising field of energy storage, TERNA ENERGY is leading the way with the Amfilochia pumped storage project.

It is characterized as a Project of Common Interest, under the code name PCI 2.9, since October 2013 and a Strategic Investment, since 2014. The technical studies were co-financed by the Connecting Europe Facility Program while part of the total cost of the project will be financed by the Recovery and Resilience Fund, following the positive evaluation of the Greek recovery and resilience plan by the European Commission.

The “Pumped-storage system in Amfilochia” is the largest grid energy storage investment in Greece. With a total installed capacity of 680 MW (production) and 730 MW (pumping), it includes two independent upper reservoirs, Agios Georgios and Pyrgos, of approximately 6.7 hm3 and 2 hm3, and PPC’s lake Kastraki as its lower reservoir. The investment exceeds 600 mil euro and yields ~816.00 GWh annually.

In operation (MW)


Under construction or ready to build (MW)


Pipeline (MW)