The Unit 3 reactor at Exelon Corp.'s Peach Bottom Atomic Power Station in York County was restarted Thursday afternoon after being off-line more than 48 hours because of a faulty safety relief valve.

One of the two nuclear reactors at the Peach Bottom Atomic Power Station has been taken offline for repairs, the plant's owner Exelon Generation said Monday. According to the company, workers needed ...

Federal regulators plan to keep an eye on the troublesome reactor, which has experienced six emergency shutdowns, known as "scrams," in the past two years. Wednesday's 5 a.m. scram was caused by a ...

Radioactive steam leaking from a valve prompted operators to shut down Peach Bottom Atomic Power Station's Unit 2 reactor early Monday morning, a company spokesman said. David Tillman, a spokesman for ...