<p>This study explores innovative spillover strategies between global renewable energy, Dow Jones, and Islamic stock indices during recent global crises. We applied the TVP-VAR approach and found that the total connectedness index for spillover effects between Islamic and global renewable energy stock indices was more than 50 percent across all subsamples. During the COVID-19 crisis, FTSE-Sharia and the MSCI Islamic world were significant risk spillover receivers. The Dow Jones Islamic developed market, Dow Jones Industrial, and renewable energy ICLN are significant spillover receivers during the Ukrainian war. Conversely, the renewable energy SMOG, NEX, and Dow Jones Islamic emerging markets are significant risk spillover transmitters in COVID-19. We suggest that investors choose renewable energy, such as SMOG and NEX, as important volatility transmitters to ensure portfolio diversification and protect themselves against crises. Furthermore, by advancing their allocations to indices such as the Global Dow Jones Islamic Market Index and MSCI Islamic World, which act as significant volatility spillover receivers during global shocks, Islamic investors can improve the stability of their portfolios. Our study provides an innovative and empirical analysis for investors and speculators to make informed decisions in these markets during times of shocks.</p>