Unit 2 at Susquehanna nuclear power plant starts refueling outage after 723 consecutive days generating electricity
Second longest run ever by a U.S. nuclear plant underscores commitment to reliability and safety by plant workers
Ending the second longest run ever by a nuclear generating unit in the United States, operators safely shut down the Unit 2 reactor at PPL Corporation’s Susquehanna nuclear power plant in northeastern Pennsylvania on Tuesday (4/7) to begin a planned refueling and maintenance outage.
Unit 2 generated electricity for 723 consecutive days since its last refueling and maintenance outage in 2007. That is a record for the Susquehanna plant, and the second longest run ever by a nuclear generating unit in the United States, according to figures provided by the Nuclear Energy Institute.
Continuous operation of Unit 2 helped the two-unit Susquehanna plant set a record by generating 19,046,000 megawatt-hours in 2008, which is enough to power about 2 million homes.
While the Unit 2 reactor is shut down, workers will replace about 40 percent of its uranium fuel and complete a number of equipment maintenance tasks and upgrades. The equipment maintenance to be performed will enhance reliability and help meet the growing demand for electricity to power the region’s economy.
Unit 1 at the plant continues to operate at full power.
“Some of the work to be completed during this outage will increase the amount of electricity the Susquehanna nuclear plant can safely generate,” said Neil Gannon, vice president-Nuclear Operations for PPL Susquehanna. That work includes replacing the unit’s steam dryer, located in the reactor above the fuel core. The steam dryer helps to remove more than 99 percent of the moisture in the steam that turns the turbine to generate electricity. If not removed, the moisture would damage the turbine’s blades.
This work is part of the major investment PPL is making in the future of the Susquehanna plant. PPL is in the midst of a program to increase the plant’s electricity output and has asked the Nuclear Regulatory Commission to approve a 20-year extension of the operating licenses for both units.
About 1,500 additional people — PPL employees and contractors — who have been brought in to help accomplish all of this important work are expected to help the local economy.
“In addition to their valuable work at the plant, all the extra workers are filling tables at local restaurants and rooms in hotels and rental properties and shopping in stores in Luzerne and Columbia counties,” Gannon said. “Our annual outages help drive additional revenue for local businesses, a side benefit that we’re happy to bring to our neighbors.” >> Read full news release here