"the available wind farm operational data shows that, on the eastern Australian grid, it is not possible for wind energy ever to displace dispatchable, reliable generation supplying the base load demand." "increased wind penetration, even if spread evenly across the eastern Australian grid, will result in an increasing contribution to grid instability" WIND FARMS IN EASTERN AUSTRALIA – RECENT LESSONS
Wind power fluctuations are spread across a wide area and cannot be evened out by power transmission.