I believe, there’s a way to gas pigs that just makes them sleepy and then pass out. I think, it was by using nitrogen. But yeah, that’s not commonly done.

IIRC, it’s literally any other gas except CO2 - the human body detects suffocation not by the lack of oxygen in blood, but the presence of carbonic acid (which is acidic). Since every other gas doesn’t create carbonic acid (except maybe some gases that contain carbon?), they all silently/painlessly kill.

Nitrogen, argon, or hydrogen would all work and be fairly cheap. Hydrogen would be explosively flammable though, so you could combine two steps into one!

As someone in the renewables industry, you should know that literally 100% of all renewables problems ever are caused by their intermittency. Were you late to work? It’s because the sun doesn’t shine at nighttime. If you say “the blackout was caused by renewables”, Joe Q Public will assume you’re referring to intermittency.

Distinguishing between “renewables” and whether the inverters were grid-forming or not, is a useful distinction, even if it hurts anyone who’s read a dictionary.