Entergy Nuclear
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History of Excellence

History of Excellence

Entergy owns, operates, supports and provides management services to a national fleet of 11 reactors in nine locations in the United States. The company also owns Vermont Yankee, which ceased operations Dec. 29, 2014, and is now in the process of decommissioning. Entergy Nuclear's national headquarters are located in Jackson, Mississippi.

Entergy Nuclear’s history begins here. 

  • In 1990 Entergy created Entergy Operations to formalize the nuclear power management company located in Jackson, Miss. Entergy operated five reactors in Arkansas, Louisiana and Mississippi.
  • Entergy Nuclear was recognized in 1998 as the “Best of the Best” by the Nuclear Energy Institute for the Grand Gulf  “Advanced Resin Cleaning System” chosen from nuclear operator in the United States.
  • In 1999 Entergy became the first company in the United States to acquire an operating nuclear plant through competitive bidding when it purchased the Pilgrim Power Plant from Boston Edison.
  • Seeing unrealized value of the nation’s nuclear plants, Entergy began the addition of five more nuclear reactors to the five reactors already in Entergy’s service territory. It included the purchase of Indian Point Units 2 and 3 and James A. FitzPatrick Nuclear Power Plant in New York; Vermont Yankee Nuclear Power Station; and Palisades Power Plant in Michigan.
  • In 1999 Entergy Nuclear’s Arkansas Nuclear One plant was recognized as the “Best of the Best” by the Nuclear Energy Institute for “Risk-Informed Inspection Program for Piping Welds” marking prestigious back-to-back industry recognition for Entergy Nuclear.
  • In 2000, Grand Gulf was ranked among the top ten nuclear performers in the U.S. for posting a 100.62% capacity factor and generating 10.6 million megawatt-hours of electricity.
  • In the year 2000, the acquisition of TLG Services Inc. made Entergy Nuclear one of the most experienced companies in decommissioning in the U.S. nuclear industry. Entergy Nuclear now is doing decommissioning studies for 90 percent of US commercial nuclear plants and all Canadian nuclear plants.
  • Entergy begins offering services to the industry following the purchase of TLG and becomes the recognized leader in licensing services, acquisitions, plant management, decommissioning, dry fuel storage installation, work force development and deploying new technologies.
  • Arkansas Nuclear One was honored with two Top Industry Practice awards by the Nuclear Energy Institute in 2001. The awards were for new inspection techniques measuring the reactor building’s liner plate; and the second award was for the elimination of a sampling system yielding more efficiency.
  • In 2001, the LA Times reported that Entergy was one of a handful of “early financial geniuses” contributing to the nuclear renaissance in the U.S. and the first to adopt a national nuclear growth strategy.
  • In 2001, the NRC granted a 20-year license renewal to Arkansas Nuclear One, Unit 1, positioning Entergy as an industry front runner in license renewal and setting the pace for additional renewal efforts. The expiration date is May 2034.
  • In 2002, FitzPatrick employees exceeded 6.5 million labor-hours without a lost-time occurrence, setting a site record.
  • In 2002, Entergy obtains a management contract to provide support and management services to Cooper Nuclear Station in Nebraska from its owner, Nebraska Public Power District.
  • Entergy Corporation's business leadership and nuclear operational excellence earned the company the electric industry's highest honor, the 2002 Edison Award, from the Edison Electric Institute.
  • In 2003, the Arkansas Nuclear One, Unit 2 refueling outage was the shortest in the site’s history and a world record for nuclear reactors of that design.
  • Entergy Nuclear engineering department along with two plants, Arkansas Nuclear One and Waterford 3, were honored with the Top Industry Practice award by the Nuclear Energy Institute in 2003 for innovation in a mechanical nozzle seal assembly.
  • In 2004, Entergy Nuclear received the Loss Prevention Process Award for creation of an electronic database to improve license renewal application processes from the Nuclear Energy Institute. Also recognized with a Top Industry Practice award was Arkansas Nuclear One for developing reactor vessel head low frequency eddy-current technology application.
  • Don Hintz, Entergy President, receives the Platts Global Energy Lifetime Achievement Award for his career of service, his creativity and insight, and his contributions to the development and future of the energy industry. He also received the American Nuclear Society Future Vision Award and was previously nationally recognized by ANS with the Utility Leadership Award.
  • Entergy Nuclear’s River Bend Nuclear Station in Louisiana was honored in 2005 as “Best of the Best” by the Nuclear Energy Institute for advanced techniques in fuel sampling and analysis.
  • In June 2005 Entergy received the 20-year license renewal for the Arkansas Nuclear One, Unit 2. The expiration date is July 2038.
  • In recognition of her body of work for the industry, her leadership as a woman professional and her dedication to the nuclear energy profession, Donna Jacobs was honored by Women In Nuclear as 2006 GLOBAL WOMAN OF THE YEAR, the first American recipient of this award. Donna Jacobs is the first woman nuclear plant manager in the United States. She earned the promotion to this position at Wolf Creek Generating Station, Burlington, Kan., in 2001. Donna Jacobs, coming up through the ranks, became the first woman Vice President of Operations at a U.S. nuclear power plant. Jacobs came to Entergy in 2005 and is the Entergy Nuclear Waterford 3 Site Vice President.
  • Entergy Nuclear acquired Palisades Power Plant in April 2007.
  • In 2007, Entergy Nuclear was honored as the “Best of the Best” by the Nuclear Energy Institute for their “Entergy Continuous Improvement” program implemented across all sites of the Entergy fleet improving measurement and quality performance. Others receiving Top Industry Practice Awards included Arkansas Nuclear One for enhancing wireless networking operations and the FitzPatrick plant for the use of a submersible vehicle for inspections.
  • Arkansas Nuclear One, Unit 1, set the record for shortest refueling outage duration for reactors of that design at 21 days in 2007.
  • Entergy Nuclear along with Global Nuclear Fuel were honored with at Top Industry Practice award by the Nuclear Energy Institute for enhancing fuel reliability in boiling water reactors.
  •  2008, the Palisades Power Plant in Michigan generated the most electricity in one year than it had in its 37 year history. 
  • In September 2008, the NRC issued a renewed license to James A. FitzPatrick Nuclear Power Plant. The expiration date is October 2034.
  • Indian Point had a record breaking year for electricity production in 2008. Indian Point, Unit 3 achieved the longest safe, continuous operational service for the site when reached 678 days of continuous operation in January 2009.
  • Vermont Yankee was recognized nationally for Top Industry Performance in 2009 by the Nuclear Energy Institute for developing innovative tooling for the inspection of a boiling water reactor steam dryer.  Entergy Nuclear was also recognized for the formation of the Innovation Group that advances performance across the nuclear fleet.
  •  In 2009, James A. FitzPatrick Nuclear Power Plant has operated for greater than 470 days, surpassing its previous 451 day continuous run.  FitzPatrick had its highest net generation year in 2009 with 7.397.949 MW-hrs. 
  • Grand Gulf surpassed its 1998 continuous run record of 422 day in December 2009 ending the year with 494 continuous days on line and had its best ever yearly net generation of almost eleven gigawatt hours.
  • In December 2009, the Nebraska Public Power District authorized an extension to the Cooper Nuclear Station support services agreement with Entergy Nuclear. The amendment extends the current agreement for an additional term of 15 years until January 2029.
  • 2010 was a stellar performance year: FitzPatrick entered its refueling outage following a breaker-to-breaker run of 702 days, its longest ever; this was the seventh longest run of any boiling water reactor unit in U.S. history. Vermont Yankee had a 532-day breaker-to-breaker run. Palisades had its second longest run in plant history at 419 days. Indian Point, Unit 2 set a record for highest generation for a cycle at 17,130,825 megawatt hours.
  • The 2010 Palisades outage duration of 26 days was a plant record.
  • Entergy Nuclear’s Palisades Power Plant was honored as the “Best of the Best” in 2010 by the Nuclear Energy Institute for their innovation called a “gimbaled head” that inspected the inside of a reactor during an outage.
  • Power Engineering magazine honored Entergy Nuclear’s Arkansas Nuclear One with the “2010 Nuclear Project of the Year” recognition for developing the next generation of shielding, tungsten shielding and tungsten vests.
  • In March, 2011, Entergy received the 20-year license renewal for Vermont Yankee Nuclear Power Station. The expiration date is March 2031.
  • 2011 saw record performances: Pilgrim had its longest run ever at 642 days of continuous operation; Waterford 3 completed its first breaker to breaker run of 487 days; Cooper completed its longest run ever at 483 days; Arkansas Nuclear One, Unit1, completed its longest run ever at 538 days.
  • Grand Gulf Nuclear Station ended 2011 on its longest run of 633 days of continuous operation just before going into a historic power upgrade. Grand Gulf increased its power capacity by 178 megawatts, the largest nuclear power upgrade in U.S. history.
  • Two of Entergy Nuclear’s plants were recognized amongst peers for Top Industry performance in 2011: the Indian Point Energy Center was honored for plant operations for the development of an
    equipment hatch closure plug that saves exposure, time and money. Arkansas Nuclear One was honored for tungsten shielding and vest, an innovation for radiation protection.
  • In June 2012, Pilgrim Power Plant received its 20-year license renewal from the NRC. The expiration date is June 2032
  • Entergy Nuclear received national recognition for Top Industry performance for the Pilgrim Power Plant for the creation of an insulated screw bit, a first-in-industry innovation that eliminates shorting-out issues in electrical boxes. Arkansas Nuclear One was also honored for Angel Wings, a portable structure that replaces costly scaffolding for welding and other jobs.
  • The Vermont Chamber of Commerce and Vermont Business Magazine honored Vermont Yankee Nuclear Power Station in 2012 as one of the “Best Places to Work in Vermont” in the large business category.
  • Entergy was honored two times by the Mississippi Association of Partners in Education as a 2012 top school-community partner.  Entergy was the recipient of the 2012 Governor’s Award of Distinction along with the Laura Bush Foundation, Jackson State University, Home Depot and others. Entergy accepted a second award for work done with the Claiborne County School District in Port Gibson, home of the Grand Gulf Nuclear Station, for innovative educational and community initiatives.
  • In the Entergy Nuclear history, power upgrades were completed in six reactors that total 421 megawatts (MW) of new electricity production. With each 100 MW increase, a reactor can power an additional 100,000 average-use homes. Upgrade increases were at the following sites: New York State – FitzPatrick increased 13 MW, Indian Point, Unit 2, increased 58 MW and Indian Point, Unit 3, increased 61 MW; Pilgrim in Massachusetts increased 18 MW; Vermont Yankee increased 95 MW; and Grand Gulf increased its electrical capacity by 178 MW.