Many attendees admitted immediately that when the lights went off with a small pop, their first thought was terrorism, while others discussed the irony of a high-tech exposition knocked low by fundamental electrical technology.
At around 11.15am local time there was a power surge noticed in the North Hall of the LVCC and at the same time power went out in the main Central Hall. Thousands of attendees were ushered out and security guards temporarily refused entry to parts of the convention center.
Here, some of our favorite robots, drones and other tech spread across the equivalent of 50 or so football fields in the Las Vegas Convention and World Trade Center and across the rest of Sin City.
Some freakish things are happening at the Consumer Electronics Show, better known as CES, this year.
"A preliminary assessment indicates that condensation from heavy rainfall caused a flashover on one of the facility's transformers", said a statement from the Consumer Technology Association, which runs the event. Nevada Energy is "in the process of testing and restoring power". And the more socially conscious pointed out the hypocrisy of being bent out of shape over a brief blackout at CES when an entire territory of the United States has been without power for months... The Consumer Electronics Show is due to continue until Saturday.
Most are taking the disruption in stride-at least on social media.
Jennifer Dudley-Nicholson travelled to Las Vegas as a guest of Samsung.