Constellation Energy

Constellation Energy Group

An Oswego County nuclear plant was shut down Wednesday, after water levels in the reactor increased. The Nine Mile Point Unit 2 reactor was shut down just after 2 p.m. Wednesday. 

According to a spokeswoman with Constellation Energy, which owns the plant, water levels have returned to normal. The plant remains offline while technicians look for the cause of the problem. 

The Nine Mile Unit 1 reactor was not affected and continues to operate at 100 percent power. 

Constellation Energy Group

Oswego County's three nuclear energy facilities will soon begin a project to replace the county's aging public warning system.

Constellation Energy Nuclear Group, which owns the two Nine Mile Point nuclear plants, and Entergy, which owns the James A. Fitzpatrick Nuclear Power Plant, will invest more than $1.5 million to replace the existing sirens in the ten mile radius around the plants.

Jill Lyon, with Constellation, says the sirens are currently used by several groups.

Constellation Energy Group

For the second time in less than a week, the Nine Mile Point Unit 2 nuclear power plant in Oswego County experienced an automatic shutdown, due to a problem at the plant. 

The shutdown happened around 4:30 p.m. Monday. According to a spokesperson from Constellation Energy, which owns the plant, a worker "inadvertently contacted a highly sensitive plant component." As a result, safety systems shut down the plant automatically.