Power grid operator IPTO’s interconnections planned for the next decade will prepare the ground for new island-based RES projects representing a total capacity of 2.6 GW.

The operator’s ten-year national electricity grid development plan for 2021 to 2030, forwarded to RAE, the Regulatory Authority for Energy, for approval, offers major investment opportunities in the renewable energy sector.

Wind and solar energy farms operating on islands will be able to transmit their output to the mainland via underwater cables.

The IPTO ten-year plan offers a RES project installation capacity of 2,442 MW for Crete, the Cyclades, the Dodecanese and the northeast Aegean islands. This capacity represents potential investments estimated at 2.6 billion euros.

The completion of all four phases of the Cyclades interconnections, scheduled for the second half of 2024, will offer 332 MW for this region. Andros and Tinos will have a RES installation capacity of 72 MW, the capacity for Syros, Paros, Mykonos and Naxos will total 160 MW, while Santorini, Folegandros, Milos and Serifos will be offered a 100-MW installation capacity.

The completion of Crete’s small-scale mainland interconnection to the Peloponnese, scheduled for the second half this year, will offer a RES installation capacity of 160 MW. A further 600 MW will be added once the island’s major-scale interconnection to Athens is completed in 2023, when Crete’s wind and solar energy capacity total of new and existing RES projects is expected to reach 1,080 MW.

The RES expansion capacity on the Dodecanese and northeast Aegean islands will reach 1,030 MW, according to the IPTO ten-year plan. Samos, Chios and Lesvos will be offered a 360-MW share of this total; Limnos, Kos, Rhodes and Karpathos will get 570 MW, while Skyros will be offered the remaining 100 MW.

The grid interconnections in the island regions will be developed over three phases to be respectively completed in 2027, 2028 and 2029, according to the IPTO plan.