Australia Cuts Evening Gas Dependence by 70% with Battery Growth

Australia’s electricity grid has seen a dramatic shift in its power mix during peak evening hours, with batteries now supplying almost half of the dispatchable capacity needed between 5 pm and 8 pm. According to a recent EnergyEdge analysis, gas‑fired generation in this critical window fell by 67% in the year to August, a decline that represents nearly 70 % of the overall reduction in gas dependence over the past year. The drop comes as large‑scale battery installations have ramped up across the country and a government subsidy program has enabled the deployment of roughly half a million home batteries.

The rapid uptake of battery storage has allowed the grid to rely less on fossil fuels when demand peaks, improving reliability and reducing emissions. While the exact mix of renewable sources feeding the batteries varies by region, the trend underscores the growing role of energy storage in meeting Australia’s peak power needs. As the grid continues to modernise, the continued expansion of battery capacity is expected to further diminish the need for gas‑based peaking plants.