Expected ROI of solar diesel hybrid storage project in Greece 2026

Should Greece invest in pumped hydropower storage facilities?

The pileup of proposals for wind and solar power plants in Greece bolstered the interest in investments in pumped hydropower storage facilities to balance the output from the two intermittent sources. Government-controlled PPC is dominating the map.

How will the EU support hybrid projects in Islands?

On top of it all, Energypress has learned that the Ministry of the Environment and Energy is preparing EUR 200 million to support hybrid projects in islands. They would encompass electricity production, energy storage and desalination, including pumped storage hydropower technology. The subsidies would be from the Decarbonization Fund for islands.

Should Greece invest in energy storage facilities?

Currently there is a growing interest for investments in storage facilities in Greece. Licensed projects mostly consist of Li-ion battery energy storage systems (BESS), either stand-alone or integrated in PVs, as well as PHS facilities .

Why is Greece preparing a third battery energy storage tender?

Greece is already preparing its third battery energy storage tender, making it one of the most advanced markets in Europe, but acceleration is also evident in the pumped storage hydropower segment. Wind and solar power plants are being built in such quantities that neither demand nor the grid can keep up.

Is Terna Energy building a hydropower plant in 2026?

As of one month ago, the Regulatory Authority for Energy, Waste and Water (RAAEW) issued permits for an overall 5 GW and a combined storage capacity of 44 GWh. Terna Energy is building its Amfilochia pumped storage hydropower plant. According to the schedule, it will come online in early 2026. Masdar is taking over the Greek company.

How long should energy storage be in a Greek power system?

Considering the energy arbitrage and flexibility needs of the Greek power system, a mix of short (~2 MWh/MW) and longer (>6 MWh/MW) duration storages has been identified as optimal. In the short run, storage is primarily needed for balancing services and to a smaller degree for limited energy arbitrage.