Greek shared energy storage power plant operation

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.

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 .

How many storage plants are there in Greece?

Currently there are four (4) storage plants operating in Greece, two open-loop pumped-hydro storage (PHS) stations in the mainland (700 ΜW in total) and two small hybrid RES-storage stations in non-interconnected islands (just 3 MW).

Is electricity storage a prerequisite for decarbonization of the power sector?

Even though electricity storage is recognized as a prerequisite for the decarbonization of the power sector, the development of storage facilities is still facing legal/regulatory barriers and investment feasibility concerns.

What changes have been made to electricity storage in 2022?

In 2022 major interventions took place in the legal framework to establish the activity of electricity storage, with law 4951/2022 introducing the following: Typology of storage -FtM facilities and BtM storage in RES plants and prosumers. Streamlining of licensing procedure. Participation in all electricity markets.

When will FTM grid-storage scheme be completed?

The 1 st (out of 3) bidding process of the FtM grid-storage scheme (SA.64736) was successfully conducted in July 2023, for a total of 400 MW. The remaining 2 rounds will be completed in 2023. All projects are scheduled to enter operation before 2026.