It seems to disagree with Dutch statistics because the linked view is for April 2026. While the article cited is talking about all of 2024.

If you change the view to look at the year 2024 [1] it claims 53% carbon free with 2.5% of that coming from nuclear. This seems to line up with the cited statistics of 50% of consumed electricity produced by wind, hydropower, solar, and biomass in 2024.

[1] https://app.electricitymaps.com/map/zone/NL/5y/yearly?signal...

It's not just 'a random website' and it aligns with CBS numbers.