Xcel Energy’s Prairie Island nuclear power plant in Red Wing, MN, is back up running at full capacity after completing repairs forced by a ruptured disk created a false fire alarm in one of its two units.
Unit 2 was back up shortly before 6 p.m. Saturday, Xcel officials said Monday. The reactor at the plant went down March 5 after the early morning false alarm triggered an “Unusual Event.”
The utility said a disk ruptured in a pressure tank, triggering the alarm and affecting the cooling and ventilation systems, leading to the shutdown.
During outages, Xcel Energy buys electricity from other power sources or increases electricity production at its other generating plants to ensure an adequate supply for customers.