05/29/2026
Just a reminder if you hear the sirens…ONLY A TEST
From Constellation Energy Corp. --
Peach Bottom Emergency Siren Test Scheduled for June 3-4
Sirens to sound during both days for extended testing
DELTA, PA (May 27, 2026) – Constellation will conduct its semi-annual, full-volume test of the emergency warning sirens surrounding Peach Bottom Clean Energy Center on Wednesday, June 3, at approximately 1 p.m. and at various intervals throughout the day, then again on Thursday, June 4, at various intervals. This is one of two semi-annual tests performed each year.
The warning siren system consists of 97 sirens located in the 10-mile radius around Peach Bottom. The sirens are not a signal to evacuate, but a warning to tune to a local Emergency Alert Broadcast television or radio station. County emergency management authorities activate the sirens.
Peach Bottom Clean Energy Center is located on the bank of Conowingo Pond in York County, Pa. The plant produces enough carbon-free electricity to power the equivalent of more than 2 million homes.
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