In 2025, Greece solidified its position as a regional electricity supplier, with cross-border flows shifting sharply in favor of exports, according to data from the national energy regulator. Net electricity exports soared to 2,671 GWh, a dramatic increase from just 307 GWh recorded in 2024.
The figures confirm that the positive export trend observed in 2024 was not a one-time event. Greece has now firmly joined the ranks of net electricity exporters, signaling a structural transformation in its electricity system.
A key driver behind this shift has been Greece’s growing cost advantage compared to neighboring markets. A high share of renewable energy generation has pushed wholesale prices lower, making Greek electricity increasingly competitive abroad. Overall electricity generation rose by about 7% year-on-year, reaching approximately 56.6 TWh in 2025, up from 53.1 TWh in 2024.
Renewables accounted for roughly 47% of total output, with generation from these sources climbing about 8% to 26.9 TWh. Solar power led the expansion, supported by an estimated 2.5 GW of new photovoltaic capacity. Meanwhile, domestic electricity consumption remained largely stable at around 51.4 TWh, meaning the additional production was available for export.
Higher exports were facilitated by increased gas-fired generation, which grew by roughly 8%, helping maintain system stability while supporting Greece’s expanding role in regional electricity trade.