While this ability to “even out” voltage has many advantages, it is especially a good thing for people/business using computers and other electronic gadgetry susceptible to both surges (upward spikes) and brownouts (voltage drops) that can really mess up their work/Internet tools. Dealing with such is why surge protectors and battery backups are the norm for most such installations. Those will doubtless continue to be wise things to have but less likely to kick in.
Now then ... when do many Romans get a life without sudden total losses of power? The writer lost his twice at home last week.