Sure, but our grids have plenty of existing natural gas generation, hydro generation and storage, etc. These aren't going to disappear just because we're buildi

Sure, but our grids have plenty of existing natural gas generation, hydro generation and storage, etc. These aren't going to disappear just because we're building wind and solar. If you can go from a grid that burns natural gas 100% of the time to only 20% of the time, you've still cut carbon emissions dramatically. In the mean time, storage technologies will improve, nuclear might become cheaper, transmission grids will become better and more interconnected, etc. The fact that wind alone can't get us to a 100% renewable grid isn't a valid argument to not build wind power. Solar and wind are the cheapest and fastest technologies available today to expand energy production while reducing carbon emissions.