Power & Operations

NextEra Energy will be allowed to revise the emergency preparedness plan for its Duane Arnold nuclear power plant to reflect the plant’s decommissioning status, having been granted exemptions from the Nuclear Regulatory Commission’s emergency preparedness and planning requirements, the agency announced on February 17. A single-unit boiling water reactor plant located in Palo, Iowa, approximately eight miles northwest of Cedar Rapids, Duane Arnold was shut down in August 2020 after a derecho damaged the plant’s cooling towers.

The NRC regularly issues exemptions from its licensing requirements to nuclear power plants that are transitioning to decommissioning, where the risk of an off-site radiological release is significantly lower, and the types of possible accidents significantly fewer, than at an operating reactor.

Once NextEra implements the exemptions, state and local governments can rely on comprehensive emergency management (“all hazard”) planning for off-site emergency response should an event occur at Duane Arnold. As a result, there will not be a 10-mile emergency planning zone as currently identified in Duane Arnold’s license. The plant will maintain an on-site emergency plan and response capabilities, including the continued notification of state government officials in the event of an emergency declaration.

Maybe everything really is bigger in Texas, but that’s not necessarily a good thing. The brutal winter storm that hit much of the country earlier this week struck the Lone Star State with particular severity, leaving the power grid in shambles and millions of Texas residents without power, in many instances for days. On Tuesday, at the height of the power crisis, more than 4.4 million utility customers were without access to electricity, according to poweroutage.us.

Aerial view of Angra 3 nuclear reactor construction site in 2017. Source: Agency Brazil

The Bulletin of the Atomic Scientists published on February 16 an article questioning the logic of completing construction on Brazil’s long-dormant Angra-3 nuclear power plant.

The Brazilian government in 2019 decided to resume construction of Angra-3, after 35 years on hold. The article, Brazil’s Angra 3 nuclear reactor: A political undertaking, not a common good, states that “the work was supposed to restart last year, with the reactor entering commercial service by late 2026, but COVID-19 and the quest for private partners to invest in the project have pushed back the schedule.”

The American Nuclear Society recommended that the Federal Energy Regulatory Commission (FERC) consider recognizing the reliability and resiliency benefits that carbon-free nuclear electricity generation provides to the bulk power system. ANS President Mary Lou Dunzik-Gougar and Executive Director/CEO Craig Piercy submitted these comments in a letter during a FERC meeting on Thursday morning.

A Montana Senate committee last week passed a joint resolution calling for the creation of a legislative panel to study the feasibility of replacing the coal-fired units at the state’s Colstrip power plant with advanced small modular reactors.

Two of Colstrip’s four coal boilers were permanently closed in January 2020, and most energy-sector observers expect the remaining two units to be retired within the next few years, given coal’s declining prospects in states such as Washington, which has passed legislation banning utilities from using coal power after 2025.

The resolution, known as SJ3, also calls on the panel to evaluate current Montana regulations that need revision in order to enable the construction and operation of advanced nuclear reactors. The study would need to be concluded before September 15, 2022.

New Brunswick Premier Blaine Higgs announces C$20 million in funding for the ARC-100 small modular reactor. Photo: ARC Canada

The Canadian province of New Brunswick has awarded C$20 million (about $15.7 million) to ARC Clean Energy Canada (ARC Canada) to support the development of the proposed ARC-100 advanced small modular reactor. The premier of New Brunswick, Blaine Higgs, announced the award during his state of the province address on February 10.

ARC Canada, headquartered in Saint John, New Brunswick, is a subsidiary of U.S.-based ARC Clean Energy, formerly known as Advanced Reactor Concepts. The company’s ARC-100 is a 100-MWe integrated sodium-cooled fast reactor that uses a metallic uranium alloy fuel. Based on Argonne National Laboratory’s Experimental Breeder Reactor-II, the reactor is designed to operate for 20-plus years without refueling.

In October 2019, ARC Canada announced that it had completed the first phase of the Canadian Nuclear Safety Commission’s (CNSC) vendor design review. (While the phase-one assessment provides detailed feedback regarding a vendor’s understanding of the CNSC’s requirements for a nuclear power plant in Canada, it does not certify the design or license the reactor.)

The Nuclear Regulatory Commission has opened registration for its annual Regulatory Information Conference (RIC), the largest public meeting the agency hosts. Scheduled for March 8–11, the 33rd RIC will be an all-virtual event.

The full conference program and registration information can be accessed from the RIC Web page.

Details: In addition to remarks from the NRC commissioners and the executive director of operations, RIC 2021 will feature two special plenary sessions, including one in recognition of the 10th anniversary of the Fukushima Daiichi accident, and 28 technical sessions covering a wide range of topics, such as advanced reactors, accident tolerant fuel, artificial intelligence, cybersecurity, microreactors, and risk-informed decision making.

A view of the Darlington-1 turbine hall. Unit 1 has set a new world record for continuous operation by a nuclear power reactor. Photo: OPG

In continuous operation since January 26, 2018, Ontario Power Generation’s Darlington-1 was taken off line last Friday for an inspection and maintenance outage after a record-setting run of 1,106 days, the Canadian utility has announced.

On September 15 of last year, the unit set a new world record for a power reactor, with 963 days of continuous operation, breaking the previous mark of 962, set by a reactor at India’s Kaiga plant in December 2018, according to OPG.

Dependable Darlington: “Unit 1’s record-setting run highlights the excellent work carried out by our dedicated nuclear professionals throughout the pandemic to ensure Ontarians and frontline workers battling COVID-19 can count on a steady supply of power 24 hours a day, seven days a week,” said Sean Granville, OPG’s chief operating officer. “It also highlights the effectiveness of our preventive maintenance programs and the overall reliability of our nuclear fleet.”

The Associated Press is reporting that Energy Harbor (formerly FirstEnergy Solutions), owner of the Davis-Besse and Perry nuclear plants, may decline the subsidies provided for those facilities by HB6—the scandal-tainted Ohio bill that was signed into law in 2019. (In late December of last year, the Ohio Supreme Court issued a temporary stay to stop collection of the HB6-mandated fee from Ohio ratepayers that was set to begin January 1.)

ANSI/ASME/ANS RA-S-1.4-2021, “Probabilistic Risk Assessment Standard for Advanced Non-Light Water Reactor Nuclear Power Plants,” has just been issued. Approved by the American National Standards Institute (ANSI) on January 28, 2021, this joint American Society of Mechanical Engineers (ASME)/American Nuclear Society (ANS) standard sets forth requirements for probabilistic risk assessments (PRAs) used to support risk-informed decisions for commercial nuclear power plants and prescribes a method for applying these requirements for specific applications.

ANSI/ANS-RA-S-1.4-2021 and its preview are available in the ANS Standards Store.

The outlook for new nuclear construction in Wales may have taken a bleak turn, but that hasn’t stopped the Welsh government from seeking other opportunities for its nuclear industry. On February 5, the government announced the signing of a memorandum of understanding with the Sizewell C Consortium, an organization of nearly 200 businesses and trade unions from the United Kingdom's nuclear supply chain focused on ensuring that the proposed Sizewell C nuclear power station in Suffolk, England, actually gets built.

The consortium includes the firms Atkins, Balfour Beatty Bailey, Cavendish Nuclear, Doosan Babcock, EDF, Laing O’Rourke, and Mott MacDonald, as well as the unions GMB, Unite, and Prospect.

A big deal: According to the announcement, in the event that the Sizewell C project is approved, the MOU could potentially see an investment of up to £900 million (about $1.2 billion) in the Welsh nuclear supply chain and up to 4,700 jobs supported across Wales. The signatories also view the agreement as a way to help retain the Welsh nuclear skills base.

Fusion devices have yet to sustain a burning plasma and produce usable energy, so it should come as no surprise that there is not yet a framework for regulating commercial fusion energy.

Fusion and fission are two very different ways to release nuclear energy. But how different could their regulation be? There are many possible answers to two central questions: Who will regulate commercial fusion (in the United States, that authority could reside with the Nuclear Regulatory Commission or an Agreement State operating under NRC oversight), and what aspects of a fusion plant will they regulate?

The Nuclear Regulatory Commission has opened for public comment the license transfer proceedings for the Palisades nuclear power plant, with the opportunity to request a hearing and petition for leave to intervene. Notice of the open proceedings was published in the February 4 Federal Register. Deadlines are February 24 for requests for a hearing and March 8 for comments.

In December, Entergy Corporation and Holtec International jointly submitted an application to the NRC for approval of the transfer of the licenses for the Palisades nuclear plant–located in Covert, Mich.—to Holtec, following the plant’s permanent shutdown and defueling in the spring of 2022. The application also requests approval of the license transfer of Entergy’s decommissioned Big Rock Point facility near Charlevoix, Mich., where only the independent spent fuel storage installation (ISFSI) remains.

Czech Republic political parties have agreed to exclude China from participating in a tender to build an additional reactor at the Dukovany nuclear plant but have yet to decide whether to allow Russian participation, according to a report last week from Reuters.

Other bidders on the project, estimated to be worth some €6 billion (about $7.2 billion), include Korea Hydro & Nuclear Power of South Korea, EDF of France, and Westinghouse of the United States.

Poland’s Council of Ministers has approved a long-term energy policy that emphasizes clean forms of energy, including nuclear.

On February 2, the country’s Ministry of Climate and Environment announced the official adoption of Energy Policy of Poland until 2040 (PEP2040), originally published in draft form in November 2018 and revised the following year. The full text of PEP2040 has not been published at this writing, but an 18-page abstract can be accessed online.

In its announcement, the ministry described PEP2040 as “a clear vision of Poland’s energy transformation strategy” and “a compass for entrepreneurs, local governments, and citizens in the transformation of the Polish economy toward low emission.” By 2040, the document states, more than half of Poland’s installed capacity will be zero-emission sources, adding that both offshore wind energy and nuclear energy “will play a special role” in reaching that goal.

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.

An advanced nuclear reactor technology park is hoped for the 935-acre Clinch River site. Image: TVA

The Tennessee Valley Authority is seeking public comment on its notice of intent to prepare a programmatic environmental impact statement (PEIS) on proposed actions for an advanced nuclear reactor technology park at the 935-acre Clinch River site near Oak Ridge, Tenn. The notice, published yesterday, is also expected to appear in this Friday’s Federal Register.

The consideration of a new nuclear facility at the Clinch River site “supports TVA’s mission statement and is another way to assess how to serve the people of the Tennessee Valley,” according to TVA.

Your turn: TVA is requesting comments on the scope of the PEIS, alternatives being considered (including a no-action alternative), and environmental issues. Comments are due by March 19 and can be submitted online, via email, or by mail to J. Taylor Cates, NEPA Specialist, 1101 Market Street, BR 2C-C, Chattanooga, TN 37402.

TVA recommends giving feedback electronically, due to COVID-19 teleworking restrictions.

A recent article from Deseret News looks at the stark reality of hazardous waste piling up from the green energy revolution. The lengthy article, "The dark side of ‘green energy’ and its threat to the nation’s environment," was written by News reporter Amy Joi O’Donoghue and is based on an Environmental Protection Agency briefing from the Trump administration. The briefing, issued in January, outlines the difficulties the United States will face in recycling and safely disposing of the materials used for green energy technologies.

Green energy’s looming waste problem: While the current fervor around the globe is to decarbonize as quickly as possible using wind and solar, the energy industry has yet to fully tackle the long-term waste stream for these systems. Many supporters think that renewable energy equals no waste, when in reality all energy-producing technologies produce waste that should be managed responsibly. That includes solar panels and wind turbines, which have their own environmental hazards such as toxic metals, oil, fiberglass, and other materials. Andrew Wheeler, EPA administrator at the time, said, “Without a strategy for their end-of-life management, so-called green technologies like solar panels, electric vehicle batteries, and windmills will ultimately place [an] unintended burden on our planet and economy.”

Korsnick

Nuclear Energy Institute president and chief executive officer Maria Korsnick struck a decidedly optimistic tone last week in remarks on nuclear’s future delivered at the United States Energy Association’s 17th annual State of the Energy Industry Forum.

"In 2020, nuclear energy was highlighted in both House and Senate climate reports," she noted. "Congress significantly increased appropriations to accelerate research and development of new nuclear technologies. And we’ve seen the introduction of bipartisan legislation that recognizes nuclear’s contributions to today’s economy and our clean energy future.”

Unit 5 at the Fuqing nuclear plant in China’s Fujian Province has entered commercial operation, becoming the world’s first Hualong One reactor to do so, China National Nuclear Corporation (CNNC) announced on January 30.

The unit was connected to the power grid in late November of last year, after having achieved initial criticality the previous month.

Also known as the HPR1000, the Hualong One is a Chinese-designed and -developed 1,000-MWe Generation III pressurized water reactor, incorporating design elements of CNNC’s ACP1000 and China General Nuclear’s ACPR1000+ reactors.

There’s more: Fuqing-5’s twin HPR1000, Fuqing-6, is scheduled for commercial startup later this year. In addition, CNNC is building two Hualong One reactors at the Zhangzhou site in Fujian Province (construction of Unit 1 began in October 2019, while Unit 2’s construction commenced last September) and one at Taipingling in Guangdong Province, with another planned for the site.

Also, China General Nuclear is building two Hualong One reactors (Units 3 and 4) at its Fangchenggang plant in Guangxi Province (2022 planned startup), while two CNNC units are under construction at Pakistan’s Karachi plant (commercial start dates of 2021 and 2022).