Power uprate approved for Millstone’s Unit 3

November 24, 2021, 7:00AMNuclear News
Millstone nuclear power plant

The Nuclear Regulatory Commission has granted Dominion Energy’s request for an increase in the generating capacity of Millstone-3. The Richmond, Va.–based utility had applied for the power uprate last November, requesting an increase of approximately 1.6 percent.

NRC staff determined that Dominion could safely increase the reactor’s heat output, primarily through more accurate means of measuring feedwater flow, according to a November 18 press release. The NRC’s safety evaluation focused on several areas, including the nuclear steam supply systems, instrumentation and control systems, electrical systems, accident evaluations, radiological consequences, fire protection, operations and training, testing, and technical specification changes.

NRC agrees to review SLR application for St. Lucie reactors

September 30, 2021, 9:30AMNuclear News
The St. Lucie nuclear power plant.

Florida Power and Light Company is seeking to keep its St. Lucie nuclear plant in operation into the 2060s, and so far, so good: In early August, the utility submitted to the Nuclear Regulatory Commission a subsequent license renewal application for the facility’s two units, and last Friday, the NRC accepted the application for review.

FPL submits SLR application for St. Lucie

August 17, 2021, 9:30AMNuclear News
St. Lucie nuclear power plant. (Photo: D Ramey Logan)

Florida Power and Light Company, a subsidiary of NextEra Energy, has filed a subsequent license renewal application with the Nuclear Regulatory Commission for the two-unit St. Lucie nuclear power plant, seeking a second 20-year renewal of the reactors’ operating licenses.

Oconee SLR application docketed

July 29, 2021, 9:29AMNuclear News
Duke Energy’s Oconee plant, in Seneca, S.C. (Photo: Duke Energy)

The Nuclear Regulatory Commission has accepted for review the subsequent license renewal application for Duke Energy’s Oconee nuclear plant, the agency announced yesterday. The utility submitted the application for an additional 20 years of operational life for Oconee on June 7. A public version of the application (with proprietary details removed) is available on the NRC website.

Safe operation of Catawba, McGuire, and Oconee plants subject of NRC virtual meeting

March 29, 2021, 9:31AMNuclear News

The Nuclear Regulatory Commission will discuss the 2020 safety performance of Duke Energy’s Catawba, McGuire, and Oconee nuclear power plants during a virtual meeting to be held on April 1.

The meeting will begin at 5 p.m., eastern time, with a presentation by the NRC staff responsible for plant inspections. Following the discussion with Duke Energy, questions will be answered by the NRC, including by the resident inspectors.

The public and media can access the meeting via Teams. For those without access to Teams, the telephone conference number is 301-576-2978, passcode 71391471#.

The annual assessment letters for the Catawba plant, the McGuire plant, and the Oconee plant, which include upcoming inspection plans for the plants, are available on the NRC website.

Current performance information for Catawba-1, Catawba-2, McGuire-1, McGuire-2, Oconee-1, Oconee-2, and Oconee-3 is available and updated quarterly.

Power uprates for Oconee units okayed

February 4, 2021, 9:29AMNuclear News

The Nuclear Regulatory Commission has approved Duke Energy’s February 2020 request to increase the capacity of the Oconee nuclear power plant’s three reactors by approximately 1.64 percent, the agency announced February 3. The agency added that the boost to the units’ heat output could be accomplished largely through more accurate means of measuring feedwater flow. The license amendments authorizing the uprates were issued to Duke on January 26.

Specifics: Located in Seneca, S.C., Oconee houses three two-loop pressurized water reactors. The power uprates will raise the generating capacities of the units as follows:

  • Unit 1, from about 909 MWe to 923 MWe
  • Unit 2, from about 919 MWe to 933 MWe
  • Unit 3, from about 922 MWe to 936 MWe

Duke intends to implement each reactor’s uprate in a phased approach based on refueling schedules, the NRC said.

EIA: Nine of top 10 electricity generators in 2019 were nuclear plants

October 6, 2020, 12:01PMNuclear News

Graph: EIA

Of the 10 U.S. power plants that generated the most electricity in 2019, nine were nuclear plants, a recent report from the U.S. Energy Information Administration states.

These 10 facilities produced a combined 230 million megawatt hours of electricity last year, accounting for 5.6 percent of all electricity generation in the United States, according to the report. The report also notes a shift in the makeup of the top plants over the past 10 years, from a mix of nuclear and coal-fired generators in 2010 to nearly all nuclear in 2019.

Coal’s share of U.S. electricity generation dropped from 45 percent in 2010 to 23 percent in 2019, the reports says. Stricter air emission standards and decreased cost competitiveness relative to other generators are given as the key reasons for coal’s decade of decline.