Formerly the headquarters of the New Orleans Public Service Inc., after which it is named, NOPSI Hotel is an architecturally unique, industrially elegant, nine-story brick building on the corner of Baronne and Union streets. Originally opened in 1927, NOPSI has been returned to its previous splendor and converted into a luxury 217-room hotel.Formerly the headquarters of the New Orleans Public Service Inc., after which it is named, NOPSI Hotel is an architecturally unique, industrially elegant, nine-story brick building on the corner of Baronne and Union streets. Originally opened in 1927, NOPSI has been returned to its previous splendor and converted into a luxury 217-room hotel. .