The energy crisis crippling power grids across the U.S. showed no sign of abating on Tuesday morning as blackouts left almost 5 million customers without electricity during unprecedented cold weather. To prevent the collapse of their networks, suppliers from North Dakota to Texas are having to institute rolling power cuts for the second consecutive day to limit demand. The severe shortages are likely to continue throughout Tuesday, and the deep freeze is forecast to remain until Wednesday at least. Officials have reported two people dead, likely from cold, according to the Associated Press. Medical centers are rushing to administer vaccines before they go bad. Flights are grounded. More than a million barrels a day of oil and 10 billion cubic feet of gas production are shut and massive refineries have halted gasoline and diesel output. The Southwest Power Pool, which controls a grid spanning 14 states from North Dakota to Oklahoma, ordered rotating outages for a second consecutive day. President Joe Biden approved an emergency declaration for Texas, making more resources available to help. Subscribe to our YouTube channel: https://bit.ly/2TwO8Gm Bloomberg Quicktake brings you live global news and original shows spanning business, technology, politics and culture. Make sense of the stories changing your business and your world. To watch complete coverage on Bloomberg Quicktake 24/7, visit http://www.bloomberg.com/qt/live, or watch on Apple TV, Roku, Samsung Smart TV, Fire TV and Android TV on the Bloomberg app. Have a story to tell? Fill out this survey for a chance to have it featured on Bloomberg Quicktake: https://cor.us/surveys/27AF30 Connect with us on… YouTube: https://www.youtube.com/user/Bloomberg Breaking News on YouTube: https://www.youtube.com/c/BloombergQuickTakeNews Twitter: https://twitter.com/quicktake Facebook: https://www.facebook.com/quicktake Instagram: https://www.instagram.com/quicktake