Con Ed has been working to restore power to customers in Brooklyn, Queens and Westchester County who are still without power after last night's storms (thousands were without power all over the region, served by various utilities). And recently, Con Ed has been sharing a website that maps power outages with the public.
According to the NY Times, the map is "updated every 30 minutes" and "based on information called in by customers, emergency workers and Con Edison employees, among others." To reach the map, you can either check this link--Con Ed Outage Locations Map--or look at Con Ed's Storm Central page, which include a link to the map plus other options, like reporting an outage or checking the status of an outage. Two years ago, Con Ed was criticized for underestimating the extent of a blackout that hit many Queens neighborhoods and lingered for over a week.
Con Ed executive John F. Miksad told the Times it was a deliberate decision not to show street addresses on the map, "Maybe we’re paranoid New Yorkers, but we didn’t want potential burglars to say, ‘Oh, all the alarms are out, let’s go there.'"