(Bloomberg) -- Mexico’s power grid is on alert after a record-breaking, nationwide heat wave has strained it for weeks. Most Read from BloombergTitanic Sub Search Chases Mystery Noises as Air Runs LowModi Meets With Elon Musk and Ray Dalio as Global Money Flocks to IndiaThese Are the World’s Most (and Least) Liveable Cities in 2023China Says Biden Calling Xi a Dictator Is ‘Provocation’Short Bets on US Stocks Hit $1 Trillion, Most Since April 2022National grid operator Cenace said its operational