Power & Operations

Probabilistic risk assessments (PRAs) have advanced the safe operation of the U.S. reactor fleet over many decades. Risk insights from PRAs have provided information from many different perspectives, from what is most important to maintain at a facility to a better understanding of how to address new information regarding safety issues. The methods and tools that have supported the creation and enhancement of PRA models were established through multiple decades of research, starting with WASH-1400, The Reactor Safety Study,¹ published in 1975, through the comprehensive plant-specific models in use today.

NuScale Power announced earlier this week that manufacturing process development work on its small modular reactor—the NuScale Power Module—is advancing at BWXT Canada Ltd.’s Cambridge, Ontario, facility in preparation for module fabrication. NuScale said that this work is critical to the development of its SMR technology and is an example of the supply chain development opportunities for Canadian companies with the requisite power plant equipment expertise.

Terrestrial Energy has upgraded the design of its Integral Molten Salt Reactor (IMSR) nuclear power plant, the company announced on September 14. The proposed facility will now feature 390 MWe of generation capacity for grid supply from twin reactors and generators.

In an hour-long ceremony held yesterday at Chicago’s Shedd Aquarium amid some fanfare (it included an appearance by lizards, a snake, and a penguin), Illinois Gov. J.B. Pritzker signed into law the Climate and Equitable Jobs Act (S.B. 2408). The bill is a sweeping overhaul of the state’s energy policies aimed at phasing out fossil-fuel power generation and placing Illinois on a path to become a 100 percent carbon-free energy producer by 2050.

Energy prices surged across Europe recently as markets were stricken by reduced output from wind turbines. Low supplies of natural gas had already boosted the cost of the gas–powered generation required to make up for dips in renewable energy sources. The result: a series of dire headlines, soaring prices for natural gas, and the startup of idled coal power plants.

U.S. energy secretary Jennifer Granholm and India’s minister of petroleum and natural gas, Hardeep Singh Puri, last week presided over the virtual launch of what the Department of Energy termed the “newly revitalized” U.S.-India Strategic Clean Energy Partnership (SCEP).

Willie L. Phillips Jr.

President Biden last Thursday announced his intention to nominate Willie L. Phillips Jr., chairman of the Public Service Commission of the District of Columbia, for the vacant seat on the Federal Energy Regulatory Commission. Phillips would replace Republican Neil Chatterjee, who left FERC at the end of August, two months after the official expiration of his term. (Chatterjee remained on the commission to provide time for the Biden administration to choose his replacement. He has since joined the Climate Leadership Council and the global law firm Hogan Lovells.)

Before joining the D.C. PSC, Phillips served as assistant general counsel for the North American Electric Reliability Corporation. He is currently an active member of the National Association of Regulatory Utility Commissioners, where he serves on the board of directors as chair of the Select Committee on Regulatory and Industry Diversity.

Doane

Margaret Doane, the first female executive director for operations at the Nuclear Regulatory Commission, will depart the agency on October 8 to take the position of deputy director general for management at the International Atomic Energy Agency, the NRC announced this morning.

Doane, who has been the NRC’s EDO since July 2018, began her career at the agency in 1991 as a special assistant in the Office of the Secretary. Her senior leadership roles have included serving as an attorney in the Office of Commission Appellate Adjudication, chief of staff for former commissioner Jeffrey Merrifield, and NRC general counsel—a position she held from 2012 to 2018. Doane has international experience as well, having served in the Office of International Programs, both as deputy director and director.

(This story has been updated from yesterday's post about the Illinois energy package.)

With only days remaining before the scheduled retirement of Exelon Generation’s Byron nuclear plant, the Illinois House has approved a comprehensive energy package (S.B. 2408) that would save the plant, as well as the state’s similarly struggling Braidwood and Dresden facilities.

With only days remaining before the scheduled retirement of Exelon Generation’s Byron nuclear plant, the Illinois General Assembly may be close to passing a comprehensive energy package (S.B. 2408) that would save that plant, as well as the state’s similarly struggling Braidwood and Dresden facilities.

House Democrats have introduced an amendment to S.B. 2408 that would require municipally owned coal plants to achieve a 45 percent reduction in greenhouse gas emissions by 2035 and completely phase out coal by 2045. The House is considering the amendment today.

(Financial assistance to Illinois’s nuclear fleet is part of a package that for weeks has been mired in disagreement between unions and environmental groups over the fate of the state’s coal plants.)

U.S. energy secretary Jennifer Granholm and Ukrainian energy minister Herman Galushchenko last week signed a joint statement of intent to advance energy and climate cooperation through the U.S.-Ukraine Strategic Energy and Climate Dialogue. The signing took place during a visit to Washington, D.C., by Ukrainian president Volodymyr Zelensky for meetings with President Biden at the White House.

Nuclear power plants around the world generated 2,553 TWh of electricity in 2020, a drop of 104 TWh from 2019’s total, according to World Nuclear Performance Report 2021. The report was released last week by the U.K.-based World Nuclear Association.

Nuclear generation declined in Africa, North America, and Western and Central Europe, rose in Asia (but by much less than in recent years), and remained largely unchanged in Eastern Europe, South America, and Russia, the 68-page report states.

Sama Bilbao y León, WNA director general, notes in the report’s preface that although the nearly 4 percent decline “would be an unequivocal disappointment” in any other year, “in 2020, with overall electricity demand falling by around 1 percent and nuclear reactors increasingly being called upon to provide load-following support to the increased share of variable renewable generation, the resilience and flexibility shown by the global nuclear fleet tell a very positive story.”

America’s electric utility workers and nuclear engineers are ready to work together to help rapidly decarbonize and electrify the economy. We welcome provisions in the bipartisan infrastructure bill that aim to prevent premature closures of our nuclear power plants. Through measures such as production tax credits, President Biden can safeguard America’s largest carbon-free energy source by recognizing the clean-air contributions of nuclear energy.

In an action that could make Pennsylvania’s nuclear plants more cost-competitive in power markets, the state’s Independent Regulatory Review Commission has approved a regulation that would allow Pennsylvania to join the Regional Greenhouse Gas Initiative (RGGI), a cooperative effort of Northeastern and Mid-Atlantic states designed to cap and reduce carbon emissions from fossil fuel–fired power plants.

Westinghouse Electric Company has entered into a cooperation agreement with the Department of Justice in connection with its role in the failed effort to build two AP1000 reactors at the Summer nuclear plant in Jenkinsville, S.C.

With essentially no time to spare, the Illinois Senate early this morning passed a clean energy omnibus package that includes $694 million in assistance to three of the state’s financially troubled nuclear plants: Braidwood, Byron, and Dresden. The vote was 39–16. (Both the Senate and House had returned to the capital on Tuesday for a one-day special session to consider legislative redistricting.)

The Nuclear Regulatory Commission said it was monitoring events at three nuclear power reactors in Louisiana and Mississippi after Hurricane Ida made landfall on August 29. With winds of 150 miles per hour, the Category 4 storm left more than 1 million people without power in the two states. Ida has since weakened to a tropical storm.

The Nuclear Regulatory Commission’s draft environmental impact statement on Dominion Energy’s application for a subsequent license renewal (SLR) for North Anna’s nuclear units is now open for public comment.

Yesterday morning with about two weeks to go before the scheduled permanent closure of Illinois’s Byron nuclear power plant, state Sen. Michael Hastings (D., 19th Dist.) filed a proposal to end the state legislature’s stalemate on a clean energy package that would, among other things, provide financial aid to Byron, as well as to other endangered nuclear power facilities in the state, via a carbon mitigation credit program.

A federal court last week sided with the Tennessee Valley Authority in its legal dispute with Nuclear Development LLC over the proposed sale of the unfinished Bellefonte nuclear power plant. The court, however, also ordered the utility to refund millions to Nuclear Development over the aborted transaction.