The article says that 4 operating nuclear plants supply 1/3 of the electricity for NY state. That's impressive!
Sadly, 4 of the NY nuclear plants were commissioned in the 1970s. A 5th plant, in Shoreham, is the newest but is also no longer operating. Nine Mile Point has one newer unit from the 1980s, but all told, most of the nuclear power generation capacity in NY is 40+ years old.