Yes but the grid doesn’t carry power efficiently over extremely long distances. You’re putting undue load on the grid if you expect wind blowing 500 miles away to cover all the power needs of the area it’s supposed to supply as well as every neighboring area where there’s not enough power.

This isn’t just an efficiency issue you can solve by throwing more windmills at the issue. If there’s too much power flowing through the lines we have currently, things break. Usually with fires and exploding transformers. Our power grid is designed for distributed production, but with on-demand generation as a backup for when intermittent generation is underperforming. Batteries are one option to achieve this, but they’re expensive to build in the scale we need them. Hydrogen fuel production is an interesting candidate to fill this niche and for all-renewable power, but the efficiency is quite low so you’re basically tripling the cost per unit energy produced.

But one way or another, you need additional infrastructure to power the grid with zero fossil fuels. Nuclear, batteries, hydrogen fuel, or a total revamp of transmission infrastructure all require expensive construction projects. Nuclear is the only one that’s been done at scale, that’s why I want to see it given a fair chance again. But I also think plenty of other options are promising BECAUSE they are novel, and I’d love to see a future where a combination is used to make a carbon-free, brownout-free power grid