Martien Visser on Nostr: Somehow, there is a linear relation between the average daily power price and the ...

Somehow, there is a linear relation between the average daily power price and the fraction of solar and wind in the production mix.
This line crosses zero at 100% solar and wind.
I discovered this relation back in 2017, with much less solar and wind in the Dutch mix, and it still holds.
Is this also true for other countries?