Susquehanna Steam Electric Station

Susquehanna Steam Electric Station is a dual-unit nuclear power plant located in Pennsylvania. Owned and operated by Talen Energy, the facility utilizes boiling water reactor technology supplied by General Electric and draws cooling water from the Susquehanna River. Since achieving commercial operation in the 1980s, it has been a major source of baseload power for the PJM Interconnection grid, serving millions of customers across the Mid-Atlantic United States.

History

Planning for the facility began in the late 1960s by the Pennsylvania Power & Light Company (PP&L), with construction commencing in 1973 near Berwick, Pennsylvania. The project faced delays common to the era due to evolving Nuclear Regulatory Commission regulations and shifting economic conditions following the 1979 Three Mile Island accident. Unit 1 entered commercial operation in June 1983, followed by Unit 2 in February 1985. Ownership later transferred to PPL Corporation after its restructuring, and ultimately to Talen Energy following a corporate spin-off. The plant's initial operating licenses were issued by the NRC for 40 years, but subsequent license renewal applications have been approved, extending its operational life.

Design and operations

The station features two identical General Electric BWR-4 boiling water reactors, each housed within a Mark I containment structure. Each reactor drives a turbine generator with a net output of approximately 1,300 MWe, for a combined capacity of around 2,600 MWe. The reactors use a direct cycle where steam produced in the reactor core directly powers the turbine generator. Essential support systems include a large cooling tower complex that dissipates waste heat into the atmosphere, with makeup water drawn from the Susquehanna River. The plant's operations are monitored continuously by the NRC and integrated into the regional transmission network managed by PJM Interconnection.

Environmental impact

As a nuclear generation facility, it produces virtually no direct air pollution or greenhouse gas emissions during operation, unlike fossil fuel plants. However, its thermal discharge into the Susquehanna River is regulated under a National Pollutant Discharge Elimination System permit administered by the Pennsylvania Department of Environmental Protection. The station manages low-level radioactive waste and stores spent nuclear fuel in on-site dry cask storage systems, pending federal policy on a permanent geological repository. Its presence has a defined watershed impact, and its water usage is subject to oversight by the Susquehanna River Basin Commission.

Safety record and incidents

The plant has maintained a generally stable operational history under the oversight of the Nuclear Regulatory Commission. Significant events include a 2007 electrical fault that triggered a manual reactor shutdown and a 2015 issue with a recirculation pump seal that required offline inspection. In 2019, the NRC conducted a special inspection following an unplanned shutdown related to a turbine control system anomaly. These events are publicly documented in the NRC's Licensee Event Report system. The facility's emergency preparedness plans are routinely exercised with county agencies like the Luzerne County Emergency Management Agency.

Economic role

The station is a significant economic entity in Luzerne County, providing hundreds of high-skilled jobs and contracting with numerous local vendors. It is one of the largest taxpayers in the region, contributing substantial revenue to Salem Township, Luzerne County, Pennsylvania and the Berwick Area School District. As a major source of carbon-free electricity, it provides price stability within the PJM Interconnection market and supports regional compliance with air quality standards and potential climate change policies. The plant's long-term operation is a subject of analysis for state energy planners within the Pennsylvania Public Utility Commission. Category:Nuclear power stations in Pennsylvania Category:Buildings and structures in Luzerne County, Pennsylvania Category:Talen Energy