Academic discussion continues as to whether a fleet of grid-connected wind farms, widely dispersed across a single grid network, can provide a reliable electricity supply. One opinion is that wide geographical dispersion of wind farms provides sufficient smoothing of the intermittent and highly variable output of individual wind farms enabling the wind farm fleet to provide for base load demand. In an examination of the 5-minute time-averaged wind farm operational data for 21 large wind farms connected to the eastern Australian grid - geographically the largest, most widely dispersed, single interconnected grid in the world (AER, ) - this paper challenges that opinion. The conclusion of this paper is provided below. The full paper can be accessed by clicking on the link(s) at the bottom of this page.