It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
The national grid authority blamed the blackout on a malfunction of supply lines from France, according to the Ansa news agency.
The failure appears to be similar to the problems that caused blackouts in the north-eastern United States and London last month, and Denmark a few days ago.
The only part of Italy that is not affected is the island of Sardinia.
A lightning strike or fallen tree, related to stormy weather overnight, may have caused the powerline interruptions, Italian officials said.