I experience it pretty much constantly, brownouts, not drunkards crashing against utility poles, that's another fun story.
Had to come up with a way to step-up the power for the lights because they're all incandescent (regular and halogen) and choke fluorescents for the kitchen, I ended up adding a subpanel next to the fusebox that takes care of that by using autotransformers and a custom control board, there's an override contactor that's supposed to close and bypass the circuit when the voltage gets past 230, but in the almost 4 years that system has worked it never happened, the xfrms can only bump 20% of the input V, they're made with an absolute low of 200V in mind, but ours can go much lower, to around 170 on a hot summer day, that if nothing blows up on the supply side.
The only limitation is it's only for the lighting circuits, the sockets remain at low voltages so that's why all of our desk/table lamps are low voltage driven by electronic power supplies, they can tank the low input and output stable 12V, if they were straight to mains most lamps would be really dim and flickery.
The only crash incident involved a drunkard smashing his truck at 180km/h against an utility pole nearby, it ripped the wiring on both directions and we were out of power and phone for 9 months. Generator can't run constantly so it was only to keep the fridge working twice a day, no landline = no internet so I didn't even use the computer. No such thing as same-day fix here, and power is state-owned.
