I had one like that in my hotel room in Taiwan. It even had a heater function for those cold winter mornings. That was rather nice.
I think that most brownouts here are not due to the production or initial transmission to the cooperatives. I think the problem is one of final distribution to the customers by the cooperatives. There doesn't appear to be any maintenance of the infrastructure and so are prone to breakdown as more and more demand is put on an already overstretched system.In Europe and the rest of the civilised world there is a metre space between the electricity cables and telephone / cable tv and the lowest cable is set higher than the height of the highest vehicles normally on the road. The recent road improvements, which has raised the roads by 10" where I live have made the cables more susceptible to damage by high vehicles, which are tending to use the improved back roads to avoid the highway. As roads are being improved, at the same time these old poles should have been replaced with new metal poles and existing power , telephone and cable tv distribution services improved. I doubt if any of this will happen as new " official use only " vehicles are more important to local politicians, rather than providing basic services. You only have to look at the fire brigade vehicles and garbage collection trucks to see the lack of leadership or concern for the citizens. Well I've had my rant and must now take my pills, as my BP has risen.
With true brownouts, yes I agree. I refer to Noreco putting too many customers on one transformer. Seems they don't think their customers are going to use modern electric appliances like refs and air cons so 100+ people on a transformer should be fine. Not!