The increasing frequency and duration of flash energy droughts pose significant risks to global renewable energy systems, particularly in regions heavily reliant on wind and solar power. These events could lead to reduced energy output, operational disruptions, and challenges in meeting energy demands. The study warns that nearly three-quarters of global wind-solar capacities are vulnerable, potentially affecting energy reliability and sustainability goals. Compound events, which involve simultaneous droughts in both wind and solar resources, are particularly concerning due to their amplified impact on energy systems.