The power outage is the first for the trade show, according to Jeremy Handle, a spokesperson with the Las Vegas Convention and Visitors Authority.
Many exhibitors and convention attendees remained calm as they used lights attached to their cell phones to navigate their way out of the dark Central Hall and South Hall of the complex.
Of course, there were tweets that still reminded us of how we take things like electricity for granted especially with parts of Puerto Rico still without power and are still suffering from the devastating effects of Hurricane Maria.
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In a statement, CES organiser, the Consumer Technology Association, blamed the outage on recent heavy rainfall which caused condensation on the venue's roof to short circuit one of the facility's transformers.
"Today at approximately 11:15 AM, the Central Hall and South Hall bridge meeting rooms at the Las Vegas Convention Center lost power".
Some companies still managed to do demos on their charged laptops and other devices, while others, such as Samsung, had limited backup power. Batteries illuminated a wall of LED lighting products on display by the company.
CES is the largest consumer electronics show in the world, attracting about 184,000 attendees and more than 4,000 exhibitors. The power outrage, caused by an error with fairly rudimentary electronics, is ironic considering the wealth of next-generation technology exhibited throughout the event. "The blackout is utterly nonsensical". Huawei Mobile also promoted its Mate 10 Pro smartphone, saying, "Caught in the #CESBlackout?".