> The Dutch power grid is already almost 50% renewables

I was a bit stunned when I read this. Your estimate is very close for 2025 here: https://en.wikipedia.org/wiki/Electricity_sector_in_the_Neth...

I calculate about 43.5% was solar or wind. What is way crazier is the "bend in the curve" of production sources in the last 10 years. Look here at how fast solar and wind is growing! https://en.wikipedia.org/wiki/File:Netherlands_electricity_g...