Signal Renewables supply most new capacity and overtake coal globally, while Korea's share was 10.6 percent in 2024

Summary

The energy-supply overview reports that since 2020 more than 80 percent of new power capacity installed worldwide has been renewable. As a result, renewable generation overtook coal in 2025 to become the world's leading source of electricity, and the IEA projects it will supply half of global generation in 2030. Korea stands apart, with renewables providing 10.6 percent of its electricity in 2024, the lowest level of deployment among OECD countries. Even at that level, delays in building the grid on time are already causing connection constraints and output curtailment. The survey reads the gap as a risk for Korean industry as clean power becomes a condition of trade and supply-chain competitiveness.