Malaysia has the chance to combine its efforts to liberalise its electricity market with the deployment of grid-scale Battery Energy Storage Systems (BESS), which has become financially viable in the last few years, with costs dropping by an estimated 45% in 2025 according to Bloomberg NEF [1], and with further cost decreases expected. This would allow Malaysia to accelerate towards its energy transition goals embedded in the National Energy Transition Roadmap, of having 70% renewable generation capacity by 2050, by allowing low-cost solar energy to be stored during the day and consumed at other times, which allows for the rapid expansion of renewables, without destabilizing the grid through generation fluctuations and daytime solar production surpluses.