zlacker

AFAIK this happens fairly regularly in some northern european countries (NL and DE come to mind) due to wind over-production. The sooner we get cheap grid storage, the better.

>>riffra+(OP)
Fairly regularly indeed. The bare EPEX spot price, before taxes etc, is on track to be at least 500 hours this year in NL. (About 300h in 2923 iirc)

MartienVisser on twitter has some great graphs about the energy market, but I'm on my phone and banned twitter from that.

>>riffra+(OP)
I'm in NL and often use this website to check for day-ahead pricing: https://energie.anwb.nl/actuele-tarieven

It's very frequent indeed. I noticed that it's mostly during sunny days in late spring / summer / early fall (solar). Much more rare is randomly at night (stormy days).

Solar is still pretty small in national grid charts, but I suspect that residential solar just reduces demand from the grid and doesn't show up as production.