Power & Operations

Doubtless with the intention of influencing some of the many nuclear agnostics expected at next week’s COP26 Climate Change Conference in Glasgow, the International Atomic Energy Agency last week released Nuclear Energy for a Net Zero World.

According to the 73-page report, nuclear power is key to achieving the goal of net-zero greenhouse gas emissions by ensuring a 24/7 energy supply, which provides stability and resilience to electrical grids and facilitates the wider integration of variable renewables, such as wind and solar, needed to drive the clean energy transition.

The expected early retirement of a massive coal plant in Pueblo County, Colo., has the county commissioners mulling small modular reactors as a power source replacement.

The plant in question is Xcel Energy’s three-unit Comanche Generating Station, Colorado’s largest single source of greenhouse gas emissions. In 2018, Xcel received approval from the Colorado Public Utilities Commission (PUC) to retire Units 1 and 2 in 2023 and 2025, respectively. And earlier this year, the company filed a proposal to close the much newer Unit 3 in 2039—three decades earlier than expected. (Xcel also plans to run the unit at only 33 percent, beginning in 2030.) Meanwhile, environmental groups have been pushing for the closure of Unit 3 by the end of the decade.

Richard Meserve

Nuclear power is an important tool in the response to climate change, and advanced reactors may offer advantages over existing plants in providing carbon-free generation at the scale necessary to respond to the existential challenge that climate change presents. The International Atomic Energy Agency is aggressively addressing issues related to the possible transition to advanced reactors. This letter is to urge a redoubling of effort by Member States to put in place the necessary capabilities to deal with the challenges that they present.

Many countries are responding to the threat of climate change by pledging to move toward a radical reduction of carbon emissions by 2050 or before. This will require a revolution in energy generation, and the transition must start many years before the target date. Given that nuclear power plants are long-lived investments that require many years to plan, construct, and incorporate on the grid, there is no time to waste in preparing for that changed world.

Craig Piercy

This month’s Nuclear News is dedicated to the people and technology that keep our nuclear energy facilities running. It’s one of the great untold stories of the modern industrial world: how a band of highly trained people have repeatedly and skillfully applied novel technology to keep decades-old nuclear plants running at peak performance. The feat itself can be hard for the uninitiated to fathom. It’s as if a 30-year-old pickup truck was still on the retail auto market and beating out brand-new models in Consumer Reports’ vehicle safety and reliability ratings.

Nuclear sustainability was the marquee topic at the 2021 ANS Utility Working Conference, held at Marco Island, Fla., in August. It was the first in-person meeting ANS has held since COVID emerged in early 2020. It was also my first UWC, so admittedly I have only a secondhand understanding of the “before” times.

The International Energy Agency released its flagship report, World Energy Outlook 2021, on October 13, “at a time when policymakers are contending with the impacts of both climate change and volatile energy markets” and ahead of the COP26 Climate Change Conference in Glasgow, which begins October 31. With a net-zero emissions by 2050 (NZE) scenario that calls for nuclear power capacity to almost double by 2050, the report acknowledges that rapid development of advanced nuclear technologies could expand opportunities for nuclear energy to provide low-carbon electricity, heat, and hydrogen.

The nuclear industry has historically relied on intermittent ultrasonic test and visual inspections of pressurized water reactor components to identify and manage degradation. While this reactive approach has proven to be effective, imagine a scenario in which the degradation could propagate throughout the reactor internals, making a more proactive measure necessary to avoid a major enterprise risk to the plant. Could a utility identify the onset of degradation within the reactor internals during plant operation? If so, could a repair be developed prior to the next refueling outage to prevent additional, cascading degradation? That is exactly the situation that Public Service Enterprise Group (PSEG) and Westinghouse engineers were able to navigate over the course of the 2019–2020 operating cycle at Salem Unit 1, resulting in a tremendous success for the plant and a historic landmark in the nuclear industry, while earning the team a 2021 Nuclear Energy Institute Top Innovative Practice (TIP) award.

A cutaway view of an EPR. (Image: EDF)

French utility giant Électricité de France has thrown its chapeau into the ring to be the large-reactor supplier for Poland’s embryonic nuclear power program, joining U.S.-based Westinghouse Electric Company, which has made concerted efforts this year to convince Poland to choose its AP1000 technology.

On Tuesday, EDF submitted a nonbinding preliminary offer to the Polish government for the construction of four to six EPR reactors, representing a total installed capacity of 6.6 to 9.9 GWe across two to three sites.

The pitch: The offer “covers all key parameters of the program, such as plant configuration, industrial scheme, plans for the development of the local supply chain, cost estimate, and schedule,” EDF said in a press release, adding that its proposal “aims at setting the principles for a Polish-French strategic partnership framework in support of Poland’s ambitious energy transition plan, aligned with the European carbon neutrality target.”

The Canadian Nuclear Safety Commission has approved the renewal of the site preparation license for Ontario Power Generation’s Darlington new-build nuclear project. First granted in 2012, the license is now valid until October 11, 2031.

The Nuclear Innovation Alliance (NIA) has followed up its report, Advanced Nuclear Technology: A Primer, published last month, with the release of two new reports on the subject—one for policymakers, the other for investors.

For policymakers: According to the NIA, Advanced Nuclear Reactors for State Policymakers, in Brief provides an overview of enabling federal policies and looks at state options to incentivize local development of advanced reactors. In addition, the report features a series of “topical briefs” on the characteristics of advanced reactors with respect to safety, economic benefits, waste remediation, flexibility and dispatchability, and timing and development. The report also contains case studies of state-specific advanced nuclear projects such as the Natrium reactor demonstration project in Wyoming, Energy Northwest’s plans in Washington state, Utah Associated Municipal Power Systems’ consortium for the first light water small modular reactor, and the Nuclear Alternative Project in Puerto Rico.

In his article, “The nuclear policy America needs,” journalist Matthew Yglesias says upfront that he is not a “nuclear bro.” He is not a scientist or a nuclear engineer. But he is part of an open, online conversation about the energy policy decisions shaping our future. And in the article posted on newsletter platform Substack on October 12, Yglesias says that nuclear prospects should not be determined by a zero-sum competition between zero-carbon energy resources. Instead, he says, “What nuclear really needs is specific regulatory changes that would give advanced reactor designs a chance to prove themselves.”

Kevin Marsh, former chief executive officer and chairman of the board of directors of SCANA Corporation, has become the first person to be sentenced to prison for involvement in the 2017 collapse of the $10 billion Summer nuclear plant expansion project. Marsh was sentenced in federal court on October 7 and in state court on October 11.

The failure to complete the construction of two Westinghouse AP1000 reactors at the single-unit nuclear plant in Jenkinsville, S.C., cost ratepayers and investors billions, damaged the brands of then owners SCANA and Santee Cooper, and put some 6,000 people out of work.

Over the course of the last year, many power plants have shortened, postponed, or rescheduled their maintenance outages due to the pandemic. Unfortunately, this has caused some critical maintenance activities to be put on the back burner. For some in the power generation industry, this has presented uncertainties as the volume of unplanned outages caused by deferred maintenance has risen.

Canada’s Bruce Power, operator of the eight-unit Bruce nuclear power plant in Kincardine, Ontario, is undertaking a series of environmental initiatives to help attain its goal, announced in March, to achieve net-zero greenhouse gas emissions from site operations by 2027.

The Minerals Council of Australia (MCA) last week released Small Modular Reactors in the Australian Context, an overview of SMRs, their potential role in Australia, and their likely operating costs.

The 36-page report, written by Australian nuclear energy advocate Ben Heard, takes a look at three of the most advanced SMR designs currently undergoing regulatory approval: NuScale’s Power Module, GE-Hitachi’s BWRX 300, and Terrestrial Energy’s Integral Molten Salt Reactor.

Some 200 Polish business leaders gathered in Warsaw earlier this month to discuss local supply chain opportunities with two U.S. companies hoping to become major players in Poland’s nascent civil nuclear power program.

The companies, Westinghouse and industry partner Bechtel, hosted their second nuclear supply symposium on October 5, touting Westinghouse’s AP1000 reactor technology.

Michelle Zietlow-Miller

Michelle Zietlow-­Miller, outage manager at Exelon’s Quad Cities plant, had no particular interest in nuclear while growing up in the (very) small town of Great Bend, N.D. She was, however, good at math and science, and taking her mother’s advice to pursue a career in engineering, she earned a degree in chemical engineering from Iowa State University in December 2004.

At the time, one of her dream jobs was to work as a chemical engineer for Budweiser. (“Making beer is a chemical process that involves fermentation,” Zietlow-­Miller explains. “Chemical engineers are hired as process engineers to oversee the fermentation and bottling processes.”) Alas, the King of Beers was not in her future. Instead, Exelon came calling, and in January 2005, she began a career in the nuclear industry as a systems engineer at Quad Cities, located in northwestern Illinois. She’s been at the two-­unit boiling water reactor facility ever since, but in a variety of roles.

Zietlow-­Miller recently spoke about her career and outage management strategies and challenges with Nuclear News staff writer Michael McQueen.

Dorman

Daniel H. Dorman has been chosen as the Nuclear Regulatory Commission’s next executive director for operations, effective October 10. He succeeds Margaret M. Doane, who leaves the agency October 8 to take a senior position with the International Atomic Energy Agency.

Dorman currently serves as the NRC’s deputy executive director for reactor and preparedness programs, which includes oversight of all four of the agency’s regional offices.

“Dan has admirably served the NRC for more than 30 years in key leadership positions,” said NRC chairman Christopher T. Hanson. “He is someone who keenly understands the needs of our agency and our people. Dan is a problem solver, a champion for agency modernization and innovation, and has proven through results his ability to rally our staff for a common purpose. He has earned the respect of our workforce, the NRC leadership, and the agency’s diverse stakeholders.”

The first of eight 160-ton steam generators for Unit 6 at Canada’s Bruce nuclear power plant was installed last week as part of the facility’s major component replacement project. “Congrats to the MCR team and our partners, including @AeconGroup, @Framatome_CA, @UEandC, @mammoetglobal, @BWXT, and others who contributed to this historic moment,” Bruce Power tweeted on September 30.

The component was fabricated at BWXT Canada’s Cambridge, Ontario, location and was shipped to the Bruce site in late 2020, as shown in this video.

The vendor responsible for generator removal is the Steam Generator Replacement Team (SGRT), a 50-50 joint venture between Aecon and the Steam Generating Team, itself a partnership between Framatome and United Engineers & Constructors. In July, Framatome announced that SGRT had been awarded an approximately C$350 million (about $278 million) contract by Bruce Power to replace the steam generators at Units 3 and 4.

The Nuclear Regulatory Commission has proposed a $150,000 fine to Entergy Operations after conducting investigations that identified three willful violations of agency requirements at the company’s River Bend nuclear power plant. Located in Francisville, La., River Bend houses a 974-MWe boiling water reactor.

Citing national security interests, the Nuclear Regulatory Commission has issued an order suspending the general license authority to export radioactive material and deuterium to China General Nuclear (CGN) and its subsidiaries or related entities.

The NRC licensees subject to the order had been authorized to ship radioactive materials and heavy water to China through a general license granted in sections 110.21 through 110.24 of 10 CFR Part 110. Notice of the order was published in the October 1 Federal Register.