Batteries now meet almost half of the grid’s dispatchable power needs during hours of highest demand Get our breaking news email, free app or daily news podcastAustralia’s dependence on gas for power during the evening, when the grid is under the most pressure, has fallen by almost nearly 70% over the past year as batteries surged in, replacing the fossil fuel.Gas generation during the busy early evening, between 5pm and 8pm, fell by 67% in the year to August, as large-scale batteries contin