Greece adds 2.5 GW of solar in 2025 as utility-scale leads growth

Greece installed 2.5 GW of new solar capacity in 2025, only slightly below the record 2.6 GW added in 2024, according to the latest figures from SolarPower Europe. Total PV capacity is estimated at 12.22 GW for 2025, putting the country on track to reach its 13.5 GW 2030 solar target as early as this year.

Under SolarPower Europe’s central scenario, Greek solar capacity could climb to 21.5 GW by 2030. In terms of annual additions, Greece ranked seventh in Europe, behind Germany (17.6 GW), Spain (9.2 GW), France (6.7 GW), Italy (5.2 GW), Poland (3.7 GW) and Romania (2.5 GW). On a per-capita basis, however, the country placed fourth, with 1,223 W per person, trailing only the Netherlands (1,582 W), Germany (1,405 W) and Estonia (1,335 W).

The market’s centre of gravity shifted further toward utility-scale projects in 2025. Roughly 72% of new capacity came from large solar parks, while rooftop and commercial & industrial (C&I) segments contracted, hit by the transition from net metering to net billing and ongoing administrative delays. Cumulatively, self-consumption systems now exceed 1 GW, and community solar plants account for nearly 20% of installed PV capacity, though most of these projects are not primarily used for self-consumption and their role in new build is diminishing.

Looking ahead, SolarPower Europe sees Greece on a solid growth trajectory, but warns that further expansion will increasingly depend on storage deployment, grid upgrades, self-consumption rules and electricity demand growth. Rising curtailment and price volatility are already shaping investment decisions: around 8% of potential renewable generation is currently curtailed, increasing to over 11% for PV, while the number of zero or negative price hours in the day-ahead market almost doubled in 2025.

Even so, the association notes that the impact on plant revenues remains less severe than in many other European markets, and a large battery storage programme scheduled for later in the decade is expected to ease integration challenges and support continued utility-scale build-out.