Capacitor circuit network warning for alarm for "main grid is drawing on this bank - bad things may happen if capacity is not increased."

Another "trick" is those burner inserters are black start capable. They can pick up fuel and feed themselves to keep running without an electrical network.

I also tend to put Schmitt triggers in low priority areas. They've got a battery on the main grid next to them and if the battery drops below 50% power they remain off until it goes back above 75% power.

In my server I hooked up a sound alarm to a set of capacitors. Too low of a charge indicates higher power consumption than production, allowing you to unplug certain low priority loads. I also have some emergency coal generators ready to go at the flick of a switch if needed.

Man I need to go play some more.

Same with Satifactory, The larger powerplants need a lot of energy for their infrastructure to run and an overload will trip breakers and shut the whole grid down, a naively designed grid death spirals very easy. My factory was needing increasingly complicated black start systems so I started putting the powerplant infrastructure on a self contained islands. something a factory overload would not trip, it was something like one coal power plant can run the machinery needed for itself and 8 grid power plants.

I've been thinking EXACTLY this while listening to FM radio for the last 7 hours (we didn't even have phone line)

They should allow you to build automatic rate-of-change-of-power-generation breakers...