The Consumer Technology Association (CTA), the organisers behind CES, blamed the glitch on the heavy rains the day before. Most of its display was lit as hundreds of attendees passed by in the dark on their way to a brightly lit giant screen TV over the convention center's fully functioning South Hall.
And this wasn't even the first major mishap of the week - on Tuesday, the opening day of the show, heavy rains spoiled the unveiling of Google's massive outdoor booth. In what has become a recent Vegas tradition for car-related shows here, the parking lot just outside the huge Las Vegas Convention Center was turned over to a drifting track.
According to reports, the power outage happened at around 11:30 PST in the Center Hall, where CES 2018 was being held. The issue has reportedly been resolved and power is expected to be restored to the Central Hall in ~25 minutes.
The irony of the incident was not lost on CES attendees and other social media users with the hashtag #CESBlackout quickly going viral.
The dashboard on the new Mercedes A Class makes voice and touch the primary ways
Attendees took to Twitter to share images and poke fun at the eerily darkened convention space.
One LVCC employee, who asked not to be named, said that the water had affected the "trunk lines" that carry power to the venue.
Meanwhile, Canon capitalized on the opportunity to demonstrate their camera's low-light shooting capability.
Beyond the robots and ever bigger and better televisions, almost 4,000 companies will showcase products here, some, which might end up changing the world.
Some people jokingly wondered why technology wasn't saving them, asking Google or Alexa to turn the lights on.