Small Island Developing States (SIDS)
Significance of the transition to cleaner energy for SIDS
The world’s 50+ small island developing states and territories make up less than one percent of the world’s population. Their small population and isolation from international markets, implying high transportation costs, make them vulnerable to exogenous economic shocks while their fragile land and marine ecosystems make SIDS particularly vulnerable to the impacts of climate change. Transitioning to renewable energy helps to shield SIDS against expensive fossil fuel imports’ drag on their budgets, fosters economic growth while mitigating climate change impacts.
How cleaner energy sources contribute to SIDS’ development
Renewables such as solar, wind, hydro, and ocean energy allow SIDS to harness domestic resources, reducing exposure to volatile global fuel prices and insulating economies from price shocks. This lowers electricity generation costs over time and frees public resources for social and infrastructure investment. Cleaner energy supports inclusive social development by expanding access to reliable and affordable electricity which improves outcomes in health, education, water supply, and digital connectivity.
Main challenges and solutions for SIDS’ transition to clean energy
Challenges to SIDS’ energy transition include fragile energy systems with limited grid infrastructure. High upfront investment and limited access to finance also pose barriers as do countries’ limited technical, regulatory, and data-management capacity that can delay project preparation, procurement, and implementation. Solutions include scaling domestic renewable resources and implementing decentralized systems, microgrids, storage, and integrated energy–resilience planning to improve reliability. Mobilizing tailored finance is key as is building institutional capacity.
ESMAP Program
ESMAP supports the implementation of renewable energy and energy efficiency policy reforms in SIDS. We promote renewable energy and energy efficiency projects that have potential to scale through climate finance and other sources.




































