In this article, we'll explore why energy storage is just as important as generation, how it prevents waste, stabilises the grid and enables a future powered entirely by renewables. We'll also discuss what's holding back storage adoption and what needs to change. The International Energy Agency (IEA) emphasises that grid-scale storage, notably batteries and pumped-hydro, is critical to balancing intermittent renewables like solar and wind. It helps manage hourly and seasonal variations in supply, ensuring system stability and resilience as clean energy use. We need additional capacity to store the energy generated from wind and solar power for periods when there is less wind and sun. This review discusses the role of energy storage in the energy transition and the blue economy, focusing on technological development, challenges, and. This learning resource will discuss why energy storage is an essential part of transitioning to renewable energy, how the process works, and what challenges and opportunities exist for the future.
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