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Renewable energy storage scale-up

Scaling up renewable energy storage means installing technologies that store electricity generated from solar and wind so it can be used when the sun isn’t shining or the wind isn’t blowing. Battery Energy Storage Systems (BESS) are the most common solution, and they help stabilize the grid and reduce reliance on imported fossil fuels. In Curaçao, Aqualectra is implementing a large-scale BESS project to support its growing renewable energy share. Energy storage systems make renewable energy more reliable and resilient, which is vital for islands vulnerable to climate shocks and fuel supply disruptions.

Feasibility & Local Applicability

This option is increasingly feasible thanks to falling battery costs and international support programs. Curaçao’s BESS project shows that large-scale storage can be integrated into existing grids. Land constraints can be addressed through modular battery units and distributed storage, such as rooftop solar paired with home batteries or electric vehicle integration. 

Co-benefits

Expanding energy storage improves energy security by reducing dependence on imported fuels and exposure to price volatility. It also cuts greenhouse gas emissions and air pollution, supporting public health. Storage systems can enable microgrids, which keep critical services running during hurricanes or blackouts. These technologies also create opportunities for local jobs in installation and maintenance.

Equity & Vulnerability Considerations

Energy storage projects should include affordable access programs so low-income households can benefit from clean, reliable power. Community-based microgrids and shared battery systems can ensure that vulnerable groups, such as rural communities and small businesses, are not left behind. Training programs can help local workers gain skills for jobs in the renewable energy sector.

Costs

Medium - High | Costs for battery storage have dropped significantly, but large-scale systems still require substantial investment. Curaçao’s BESS project is supported by international financing and partnerships, which can reduce upfront costs for governments. Distributed solutions, like home batteries or EV integration, can be scaled gradually. Long-term savings from reduced fuel imports and improved resilience often outweigh initial expenses.

Case studies & Examples

Literature

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