This past Sunday, May 8, for a brief time Germany produced 87% of its total energy consumption from wind and solar. Power prices were actually negative for a few hours.
Germany, 4th largest economy in the world.
Of course this doesn’t happen every day. Of course there has been some up-front cost to the country’s shift to renewables infrastructure. But it happened, and it will happen more and more.
You can read more here, here, and here.