American here--I've experienced load shedding once. The problem was a lineman started a wildfire that took out the primary source of power for the town. Until the line was repaired there was nowhere near enough power available, they directed what they had to things like the hospital etc and everyone else was in the dark.
There is also the mess we currently have in California. High winds blew stuff into high power lines and started a bad wildfire. In the lawsuits that followed the utility was told to shut down the risky lines under high wind conditions--which of course causes massive outages. Of course the utility is "at fault" because the ecology types blocked efforts to keep the vegetation away from the lines.
PG&E is at fault because they refused to properly maintain the power lines, and lines that had been hanging for years from the same supports where the supports failed are the cause of the fires.
I can't find it right now, but there was an absolutely fantastic RCA report that included all the information on the wearing down of the hooks and how this could have all been prevented.
The utility is at fault because they didn't spend enough money on maintenance. As a for-profit company in an established industry, PG&E won't ever be able to "pop" like a SaaS company does, so profits and salaries for executives and shareholders have to come from somewhere. Spending less on maintenance won't bite you - until it does - but until then, thats money that can be put elsewhere like CEO pockets.
There is also the mess we currently have in California. High winds blew stuff into high power lines and started a bad wildfire. In the lawsuits that followed the utility was told to shut down the risky lines under high wind conditions--which of course causes massive outages. Of course the utility is "at fault" because the ecology types blocked efforts to keep the vegetation away from the lines.