Power & Operations

Limerick Nuclear Power Plant

Refueling a nuclear reactor under normal circumstances can be a challenging endeavor, with hundreds of maintenance activities and inspections to perform in a short window of time, and more than a thousand supplemental workers on-site to complete the work safely and effectively. But these are anything but normal circumstances.

A new report from the World Nuclear Association asserts that the nuclear sector provides more and better-paying jobs, as well as more highly trained jobs, than does the wind sector, and by a substantial margin. According to the 20-page report, Employment in the Nuclear and Wind Energy Generating Sectors, nuclear provides approximately 25 percent more employment per unit of electricity generated than does wind.

Householder

Federal prosecutors on July 21 arrested the Speaker of the Ohio House of Representatives, Larry Householder, and four lobbyists and political consultants for their involvement in an alleged $61-million corruption and racketeering scheme aimed at guaranteeing passage of H.B. 6, the Ohio Clean Air Program Act—the measure that rescued Ohio’s Davis-Besse and Perry nuclear power plants from premature closure. If convicted, Householder et al. face up to 20 years in prison.

A circuit court judge on July 20 gave final approval to a $520-million settlement in a class action civil suit brought against Santee Cooper over alleged deceptive business practices involving the failed nuclear-expansion project at South Carolina’s Summer plant.

Santee Cooper was the junior partner to SCANA Corporation’s South Carolina Electric and Gas in the two-reactor project, which was canceled in July 2017 (NN, Aug. 2017, p. 17). In July 2019, SCANA became a wholly owned subsidiary of Virginia-based Dominion Energy (NN, Feb. 2019, p. 15).

According to the lawsuit, brought by ratepayers, Santee Cooper raised rates to cover the increasing costs of the Summer expansion even after becoming aware that the project was no longer viable.

The Akkuyu-1 reactor pressure vessel. Photo: Atomenergomash

Atommash has completed hydraulic testing of the reactor pressure vessel for Unit 1 at the Akkuyu nuclear power plant, the four-unit facility currently under construction on the Mediterranean coast in southern Turkey. Atommash is part of Atomenergomash, the engineering division of Rosatom, which is Russia’s state atomic energy agency.

Mexico’s Laguna Verde nuclear power plant. Photo: HFStudios

Mexico’s Ministry of Energy (SENER) announced on July 17 that it has approved the renewal of the operating license for Unit 1 at Laguna Verde, the country’s only nuclear power plant.

Laguna Verde is located on the coast of the Gulf of Mexico, in the state of Veracruz. Unit 1 is a General Electric–supplied 777-MWe BWR-5 boiling water reactor that began commercial operation 30 years ago this month. Its near-twin Unit 2, rated at 775 MWe, first came on line in April 1995.

The Nuclear Regulatory Commission has extended the deadline for comments on its “Proposed Rule for Emergency Preparedness for Small Modular Reactors and Other New Technologies” to allow more time for members of the public and other stakeholders to develop and submit their comments. The proposed rule and associated draft regulatory guide apply to non-light-water reactors and certain nonpower facilities, and were originally published in the Federal Register on May 12 with a deadline of July 27. The new deadline is September 25.

Uranium producers around the world have suffered through years of record low uranium prices. In 2019 the United States recorded its lowest total uranium production—174,000 lb U3O8—since the U.S. Energy Information Administration began collecting data in 1949, according to the agency’s Today in Energy analysis of July 17.

U.S. uranium producers asked the federal government to come to their aid in January 2018, and President Donald Trump created the U.S. Nuclear Fuel Working Group (NFWG) in July 2019. While the NFWG issued a report in April 2020 recommending support for the front end of the nuclear fuel cycle, uranium producers are in a waiting game once again as the U.S. House of Representatives works on Fiscal Year 2021 appropriations legislation.

Technicians at the Leningrad II-2 plant, where fuel loading recently took place. Photo: Rosenergoatom

The first of 163 nuclear fuel assemblies has been loaded into Leningrad II-2, marking the beginning of the Generation III+ unit’s physical startup, Rosenergoatom announced on July 19.

The electric power division of Rosatom, Russia’s state-owned atomic energy corporation, Rosenergoatom is the operator of all of Russia’s nuclear power plants. The fuel for Leningrad II-2, a 1,085-MWe VVER-1200 pressurized water reactor, was manufactured at the Novosibirsk Chemical Concentrates Plant, part of Rosatom subsidiary TVEL.

UK EPR Design Centre, Bristol, England. Image: EDF Energy

EDF Energy has opened a new engineering design facility in Bristol, England, to support the next phase of construction at the Hinkley Point C nuclear power station in Somerset, the company announced on July 14. The UK EPR Design Centre at Aztec West brings together nuclear designers and engineers from EDF and British engineering partners and suppliers, including Framatome UK, Atkins, Jacobs, Assystem, Anotech, and Vulcain, the announcement said.

This article first appeared in the May 2020 issue of Nuclear News.

Nuclear News reached out to leaders in the nuclear community to ask them for their views on the capacity benefits that come from nuclear. We received wide-ranging responses, from how capacity factors provide examples of the excellence of nuclear professionals, to the work being done at universities to continually improve capacity factors, to the importance of adding the word “inherent” to the conversation because forms of energy are different from one another and so inherent capacity factor is a critical piece of understanding.

If you have your own thoughts about capacity factor, please let Nuclear News know. If we collect enough comments, it may result in a Part 2 of this article in the future.

Thirty-two companies and other entities, including trade unions and nuclear supply chain businesses, have formed a consortium to urge the U.K. government to greenlight Sizewell C, the proposed nuclear new–build project at the Sizewell site in Suffolk, according to a July 14 announcement by EDF Energy.

The UAE’s Barakah nuclear power plant. Photo: ENEC

The Emirates Nuclear Energy Corporation (ENEC) has completed construction of Unit 2 at the Barakah nuclear plant, the company announced on July 14. The plant, the Arab world’s first such facility, is located in the Al Dhafra region of Abu Dhabi, the United Arab Emirates’ capital city.

Hot functional testing of the unit had been completed in August 2018, followed by structural integrity testing and integrated leak rate testing in March last year.

With construction complete, the unit has now been officially turned over to Nawah Energy Company, ENEC’s operating and maintenance subsidiary. According to the announcement, the focus at Barakah-2 now shifts to completing the operational readiness preparations, regulatory inspections, and international assessments required for obtaining an operating license from the Federal Authority for Nuclear Regulation, the UAE’s nuclear regulator.

A team from Arizona Public Service’s (APS) Palo Verde nuclear plant, in Wintersburg, Ariz., has won the Nuclear Energy Institute’s “Best of the Best” Top Innovative Practice (TIP) Award for developing in-house software applications that use machine learning to automate such time-consuming tasks as screening reports or searching maintenance logs. The award was announced July 9 during NEI’s first-ever virtual TIP Awards presentation.

Around the world in the mid-March time frame, conditions were changing rapidly due to the COVID-19 pandemic, as was everyone’s understanding of it. For nuclear power plants, the pandemic meant dealing with new government regulations and restrictions that were put in place. “U.S.-based support of international clients was especially challenging,” said Mike Little, president and principal officer of Reston, Va.–based Dominion Engineering Inc. (DEI). “With border closures going into effect, we were not only focusing on the health and safety of our workers abroad, but also making sure they would be able to return home. Providing remote subject matter expertise from the U.S. through our international service partners was critical to successful job execution during this time.”

Unit 1 of Canada’s four-unit Darlington nuclear power plant, located in Clarington, Ontario, set a North American record on July 9 with 895 consecutive days of operation, according to Ontario Power Generation (OPG), the plant’s owner and operator.

The previous record of 894 days was held by Pickering-7, also part of OPG’s nuclear fleet. The reactors at the Darlington and Pickering plants are CANDU pressurized heavy-water reactors. Darlington-1, an 878-MWe PHWR, has been on line since January 26, 2018.

Closed vessel testing has been completed at Vogtle-3 at the Georgia Power site near Waynesboro, Ga., the company announced on July 14. The completion of the milestone prepares Unit 3 for cold hydro testing, which is required ahead of initial fuel load.

Vogtle-3 and -4 are the first new nuclear power reactors built in the United States in the past three decades. The new units will be powered by AP1000 reactors.

All energy sources, including small modular reactors, are being considered to meet Puerto Rico’s energy needs, U.S. Coast Guard Rear Admiral Peter J. Brown said on July 15 during the second day of PR-Grid Virtual, a three-day online conference on Puerto Rico’s energy grid. Brown’s comments were quickly circulated on Twitter by people who are already working to make nuclear power a reality for Puerto Rico, including members of the Nuclear Alternative Project (NAP), a non-profit organization of Puerto Rican engineers in the nuclear industry.

The nuclear community’s reaction to last month’s proposal from the International Development Finance Corporation (DFC) to eliminate its legacy prohibition on financing international nuclear energy projects was unsurprisingly positive (see here and here). On the negative side of things, however, was the reaction from Sens. Bernie Sanders (I., Vt) and Edward Markey (D., Mass.), expressed in a July 10 letter to the DFC.

Federal Judge Margaret Seymour signed off on a $192.5 million settlement on July 9 in a civil lawsuit filed in 2017 by SCANA shareholders over the company’s failed Summer nuclear construction project.