That's cool that you haven't been affected, but they happen frequently in Italy.
https://www.thelocal.it/20230719/blackouts-hit-italian-citie...
https://www.thelocal.it/20230719/blackouts-hit-italian-citie...
People in France, South Korea, Switzerland and the United Kingdom can go 5 or more years between power outages.
[1] https://reports.electricinsights.co.uk/wp-content/uploads/20...