> The main reason for negative electricity prices are inflexible generators eg. nuclear

Ah yes, wind and solar generation crushes the grid (https://x.com/ElectricityMaps/status/1786377006562541825) but that's the fault of all those dastardly nuclear plants germany is littered with, all zero of them (https://en.wikipedia.org/wiki/List_of_commercial_nuclear_rea...)

> Negative prices are not all bad: they are an incentive for storage / flexible demand to step in.

Maybe that'll happen, but currently such events only keep increasing in frequency (https://www.pv-magazine.com/2025/08/26/germany-records-453-h...), and as neighbours also install more solar and wind the ability for germany to maintain their grid stability through exports is going to worsen not improve.

Your own link shows coal, gas and biomass production as flat throughout a day while solar ramps up and "crushes the grid"? They all pay a price for doing so when cheaper cleaner energy is avaialable and they presumably find it a better choice than ramping down their boilers.

Why do market based financial incentives to shift demand and balance supply and demand freak you out so much?

Do you have the same visceral reaction to cheap prices used to shift demand towards overnight periods for nuclear? The frequency of that increased as people built nuclear too. Some even spent millions on storage systems to take advantage of it.