Greece’s electricity distribution system operator, DEDDIE, has identified a need for additional electricity generation capacity for the country’s non-interconnected islands between 2024 and 2030. This demand surge is particularly pronounced during the summer months due to increased tourism and the planned decommissioning of older conventional power units.
For Rhodes, the anticipated electricity shortfall, which began this year, is expected to intensify through 2028. To address this, a 24 MW temporary lease is proposed for 2024, with an additional 12 MW to be added in 2025. By 2026, the deficit is projected to reach 21.51 MW, necessitating a 22 MW lease for the peak summer months. Further needs of 9 MW are forecasted for 2027 and 2028.
The Kos-Kalymnos energy system will face power shortages starting in 2027, with proposed temporary leases of 3 MW and 8 MW for July-August periods to bridge the gap.
Lesbos, which has already faced electricity deficits this year, will see a shortfall of 22.7 MW in 2024, with additional capacity leases of 3 MW, 6 MW, 9 MW, and 12 MW proposed for the July-August period from 2026 to 2029 to meet projected deficits of 2.7 MW, 5.7 MW, 8.7 MW, and 11.7 MW, respectively.
On Santorini, an electricity shortage is anticipated until 2025, with a 34 MW lease proposed for 2024 and 22 MW for 2025.
Limnos is projected to experience a power deficit starting in 2025, which will be addressed through leasing and relocating units from Milos, following the completion of the fourth phase of the Cyclades interconnection.
