St. Lucie Power Plant's Unit 1 manually shut down after control rods drop into core
WPBF • • business
Key Points:
- The St. Lucie Nuclear Power Plant's Unit 1 was manually shut down after three control rods unexpectedly dropped into the reactor core, causing the reactor to trip at 100% power without any complications.
- The shutdown was non-emergency, with all systems responding normally, and the plant stabilized in Mode 3 using steam discharge to remove decay heat; Unit 2 was unaffected.
- Control rods regulate nuclear fission by absorbing neutrons, and their insertion into the core stops the chain reaction, leading to reactor shutdown.
- The plant, located on Hutchinson Island, generates about 2,000 megawatts of emissions-free electricity, supplying roughly 11% of Florida Power & Light's power and serving over 1 million customers.
- Maintenance testing of emergency sirens in St. Lucie and Martin counties is scheduled, including one-minute test sounds and public-address messages, to ensure readiness in case of an actual plant emergency.
