The transition to clean energy will require more renewable energy generation such as wind and solar to replace the ageing coal fired power stations. Given the variability of renewable resources, BESS will play a major role to help ensure a continuous supply of energy in the grid. BESS will store excess energy generated such as during day time, and release it during peak demand in the evening. The 100 MW 4-hour stand-alone BESS enhances grid stability by providing a bi-directional power function, helping to smooth out power fluctuations. It helps manage peak load demands, reducing the need for expensive and carbon-intensive gas-peaking power plants, thereby lowering operational costs and environmental impact. As the electricity market is mainly driven by supply and demand, the increased energy availability in the market will help stabilize electricity prices. Additionally, BESS also helps improve grid stability by providing ancillary services such as frequency control support. As such the grid can support more capacity of renewables towards meeting Australia’s clean energy goal.