South Korea is seeking to expand renewable energy capacity to 100GW by 2030 as part of its accelerated decarbonization plans, with solar power positioned as a central pillar. Yet solar deployment has slowed in recent years, and industry estimates suggest the country will add only around 3GW of new capacity annually through 2028, half the level required to stay on track for 2030 targets. The gap reflects longstanding structural challenges, including limited land availability, grid bottlenecks, and persistent local resistance.