PREPA said in a post on Twitter that it was prioritizing re-establishing power to hospitals, the Luis Muñoz Marín International Airport, pumping systems for the Puerto Rico Aqueducts and Sewers Authority and central banks.
Puerto Rico lost power across the island Wednesday - a repeat of what happened last September when Hurricane Maria destroyed much of its power grid. "She recognized this was a unique chance to help people in need in Puerto Rico".
Cruz said a Major League Baseball game between the Cleveland Indians and Minnesota Twins, however, would go on as planned Wednesday.
The spokesman for the Puerto Rican Power Authority says he doesn't know what has caused the island wide power outage. Typically, they receive power from the main island through sub-sea cables, but since the Hurricane have switched to distributed generation - mostly diesel generators supplied by the government.
Fredyson Martinez, vice president of a union that represents power company workers in Puerto Rico, told The Associated Press that he was concerned about the two back-to-back incidents.
Europe in 'kind of civil war', warns Macron
His speech comes just days after Hungary's right-wing Prime Minister Viktor Orban won a crushing re-election victory. Macron obviously doesn't yet understand that the future of Europe will be Eurosceptic.
Meanwhile, the U.S. Army Corps of Engineers, which is overseeing the federal power restoration efforts, said they hope to have the entire island fully energized by May.
Wednesday's power loss came less than a week after a tree fell during restoration work on a transmission system in Cayey - and cut electricity for at least 900,000 people.
Puerto Rico's power authority faced widespread criticism late past year for signing a $300 million contract to restore power with Whitefish Energy Holdings, a small Montana-based firm with only two employees at the time.