The study reveals that coal-related aerosols significantly hinder solar energy production, with China experiencing the highest losses at 7.7%. This reduction in solar output undermines efforts to decarbonize energy systems and achieve climate goals. While emission controls in some regions, such as China, have mitigated these impacts slightly, other areas like India continue to face increasing losses due to less stringent pollution controls. The findings highlight the need for integrated strategies that address both pollution reduction and renewable energy expansion to maximize the benefits of solar power.