My point is that nowhere has successfully done it. No jurisdiction that I know of has completed a changeover to zero-carbon emissions power based on their wind

My point is that nowhere has successfully done it. No jurisdiction that I know of has completed a changeover to zero-carbon emissions power based on their wind/solar production, while there are several that have been quietly humming along on 100% nuclear for years. While there have been massive advancements in wind/solar, the only tech that has been successfully used to create the backbone of a zero-carbon power-grid is nuclear.