Susquehanna Unit 2 returns to service after four-day outage

Talen Energy (NYSE:TLN) operators reconnected Unit 2 at the Susquehanna nuclear power plant in Pennsylvania to the regional power grid on May 17, the company said.

The Unit 2 reactor was manually shut down on Friday, May 13 due to a fault in one of the unit’s 480-volt electrical distribution centers.  The plant’s design provides redundancy to account for the potential of these types of electrical faults.

An investigation by the plant’s nuclear professionals determined the reason for the shutdown was a short in a breaker that supplies power to a ventilation fan. “Our electrical engineers and craftsmen completed a comprehensive assessment and identified an isolated electrical short, said Jon Franke, site vice president.

“We have replaced the breaker and verified the functionality of the system,” Franke added in a news release.

Susquehanna 1 continued to run at 100% power while the other unit was down. Both Susquehanna units are boiling water reactors (BWRs) commissioned in the 1980s. Each can generate roughly 1,200 MW.

The Susquehanna plant, located about seven miles north of Berwick, is jointly owned by Susquehanna Nuclear, LLC, and Allegheny Electric Cooperative Inc., and is operated by Susquehanna Nuclear.

To keep its nuclear options open, Talen has been proceeding with a combined construction and operating license (COL) application at the Nuclear Regulatory Commission (NRC). The application seeks approval for a potential nuclear facility, Bell Bend, which would be located adjacent to the existing Susquehanna site.

About Wayne Barber 4201 Articles
Wayne Barber, Chief Analyst for the GenerationHub, has been covering power generation, energy and natural resources issues at national publications for more than 20 years. Prior to joining PennWell he was editor of Generation Markets Week at SNL Financial for nine years. He has also worked as a business journalist at both McGraw-Hill and Financial Times Energy. Wayne also worked as a newspaper reporter for several years. During his career has visited nuclear reactors and coal mines as well as coal and natural gas power plants. Wayne can be reached at wayneb@pennwell.com.