New research shows solar power shortages, or “solar droughts,” are increasing due to rising demand and climate disruptions. A study spanning 1984–2014 found frequent shortages in tropical and developing regions, where the need for cooling is critical. Future scenarios suggest the problem could worsen without emissions control.

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• Solar drought = 3+ days when power demand exceeds solar supply
• Study found yearly shortages in U.S. West, SE Asia, Africa, E. Brazil
• Global rise: 0.76 more solar droughts per decade since 1984
• 29% of recent droughts caused by increased shortage frequency
• Main triggers: high cooling demand + low solar output (clouds/pollution)
• Droughts strike when people most need cooling, cooking energy
• 2090s projection: 7x more frequent, 1.3x more severe under mid-emissions path
• Emission control can limit droughts by reducing extreme heat events
• Results published in Geophysical Research Letters
• Researchers urge clean energy shift to avoid crisis-level shortages