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.)

Kinzinger

With a note of desperation, Rep. Adam Kinzinger (R., Ill.) yesterday wrote a letter to President Biden and several top administration officials, asking them to consider the use of emergency powers to keep two Illinois nuclear power plants, Byron and Dresden, in operation, at least until state or federal laws are enacted to ensure their financial viability.

On June 16, the plants’ owner and operator, Exelon Generation, filed a deactivation notice for the two Byron units with grid operator PJM Interconnection. The requested deactivation dates for Byron-1 and -2 are September 14 and 16, respectively.

Exelon announced in August of last year that it would close the economically challenged Byron and Dresden facilities in the fall of 2021 without some form of state aid to provide compensation for their clean power.

Exelon Generation has received a grant from the Department of Energy to explore the potential benefits of on-site hydrogen production and has chosen its Nine Mile Point nuclear power plant as the demonstration site, the company announced on Wednesday. (In 2019, Exelon received a conditional commitment from the DOE to co-fund a hydrogen electrolyzer demonstration at a nuclear plant.) Located in Scriba, N.Y., Nine Mile Point consists of two boiling water reactors—the 620-MWe Unit 1 and the 1,287-MWe Unit 2.

Yesterday, a television news program, Chicago Tonight, shined the spotlight on the financial troubles and potential shutdown of two of Illinois’s six nuclear power plants. The host of the show introduced the issue by stating, “Illinois lawmakers may be back in Springfield [the state’s capital] soon for a second extra session [to] strike a deal on a massive energy package.” Readers of Nuclear News might be thinking, “It’s about time!”

Steven P. Nesbit

Stories are unfolding (or have unfolded) in three of our key states that illustrate the challenges facing the backbone of our country’s clean, reliable electricity generation infrastructure. I write, of course, about existing nuclear power plants. On the East Coast, New York is a done deal. Indian Point-3 shut down on April 30. The state authorities are banking on offshore wind to pick up the slack. They shrug off the cost and intermittency challenges associated with deploying wind power. We’ll see.

A $6 billion lifeline for struggling U.S. nuclear power plants is reportedly included in the nearly $1 trillion bipartisan infrastructure bill currently being mulled over in the U.S. Senate, but it won’t be thrown in time to rescue Illinois’s Byron and Dresden plants, according to owner and operator Exelon.

In an August 4 statement on second-quarter earnings, Exelon’s president and chief executive officer, Chris Crane, noted that while his company is encouraged by the growth of federal support for policies that acknowledge the value of nuclear’s clean energy generation, “passage of legislation remains uncertain and, regardless, will come too late to save our Byron and Dresden plants from early retirement this fall. While we remain hopeful that a state solution will pass in time to save the plants, clean energy legislation in Illinois remains caught in negotiations over unrelated policy matters, leaving us no choice but to continue down the path of closing the plants.” (Last August, Exelon announced its intention to prematurely retire Byron and Dresden, citing long­standing economic pressures. Last week, the company filed decommissioning plans for the two nuclear facilities.)

Several lead test rods of Westinghouse’s EnCore accident tolerant fuel recently arrived at Oak Ridge National Laboratory for post-irradiation examination over the next year in support of the Nuclear Regulatory Commission’s licensing process. The rods were installed in 2019 in Exelon’s Byron-2, a 1,158-MWe pressurized water reactor, and were removed in fall 2020 and prepared for shipment to ORNL.

In what could be viewed as a rather pointed message to Illinois lawmakers that time is running out to pass legislation providing a lifeline to the state’s Byron and Dresden nuclear plants, Exelon Generation this morning announced that it would file post-shutdown decommissioning activities reports (PSDARs) today with the Nuclear Regulatory Commission. The PSDARs detail long-term site restoration plans for the facilities, both of which are scheduled to shut down for good this fall—first Byron, in September, then Dresden, in November.

Czerwinski

Writing in today’s suburban Chicago Daily Herald, Madison Czerwinski, executive director of Campaign for a Green Nuclear Deal, warns of the damage to Illinois’s clean energy aspirations should the state’s policymakers fail to agree in time on legislation providing some form of aid to Exelon’s imperiled Byron and Dresden nuclear plants, both of which are slated for closure later this year. (And “in time” in this case means the next few weeks.)

Czerwinski notes in a guest column that despite the executive order signed by Gov. J.B. Pritzker in January 2019 committing Illinois to reducing greenhouse gas emissions consistent with the Paris climate agreement, electricity emissions in the state are up from last year by 36 percent—a number that will only grow in the event an acceptable bill is not forthcoming.

Carbon dioxide emissions from the U.S. power sector fell 10 percent between 2019 and 2020, according to the 17th and latest edition of Benchmarking Air Emissions of the 100 Largest Electric Power Producers in the United States, which was released last week. The drop is the largest year-over-year decrease in greenhouse gas emissions since the initial report was issued in 1997. Further, CO₂ emissions are shown to be down 20 percent from 1990 levels and 40 percent from their 2007 peak.

The 48-page analysis—which combines generation and fuel consumption data from the Energy Information Administration with emissions data on CO₂, sulfur dioxide (SO₂), nitrogen oxides (NOx), and mercury from the Environmental Protection Agency—was authored by M.J. Bradley & Associates, a consulting firm focused on energy and environmental issues. Listed as “contributors” to the report are Bank of America, the nonprofit organization Ceres, energy producers Entergy and Exelon, and the Natural Resources Defense Council.

In the latest legal action over the New Jersey Board of Public Utilities’ (BPU) April 2019 order providing subsidies to the Hope Creek and Salem nuclear plants, the state’s Supreme Court has declined to hear an appeal.

As Illinois lawmakers continue to debate energy legislation that would allow the state’s Byron and Dresden nuclear plants to continue operation beyond this year, Exelon would like to remind everyone—including those legislators, no doubt—of what is at stake.

New Jersey’s Public Service Enterprise Group has announced its intention to achieve net-zero emissions by 2030, shaving two decades off its previously announced target date of 2050. PSEG is owner of the Hope Creek nuclear plant and is co-owner, with Exelon, of the Salem plant.

Exelon on June 16 filed with grid operator PJM Interconnection to deactivate the two Byron reactors in Illinois. The move came one day after the Illinois Senate adjourned without reaching an agreement on a comprehensive energy package that would have provided nearly $700 million to keep Byron’s reactors, as well as Exelon’s Dresden and Braidwood nuclear power plants, in operation. (In August of 2020, Exelon announced that it would close the economically challenged Byron and Dresden facilities in the fall of 2021 without some form of state aid to provide compensation for their clean power.) The state’s House of Representatives also adjourned earlier this week without taking up the bill.

The Illinois Senate adjourned on June 15 without calling a comprehensive energy regulatory reform package for a vote, Capitol News Illinois reported. State Sen. Bill Cunningham (D., Chicago) and Senate president Don Harmon (D., Oak Park) said afterward that they expect a vote to happen sometime this summer as negotiations continue.

Three Illinois nuclear power plants—Byron, Dresden, and Quad Cities—did not clear in last week’s long-delayed PJM Interconnection capacity auction, Exelon Generation reported in a filing with the Securities and Exchange Commission.

The news is likely to further pressure the Illinois General Assembly to pass a comprehensive energy package—one with subsidies for the state’s financially ailing nuclear plants—before Exelon moves forward with its plan, announced last August, to prematurely retire Byron and Dresden.

Capacity factor is a measure of reliability, and reliability delivers results. The U.S. nuclear power fleet produced about 789.9 TWh of clean electricity in 2020 and ended the year with 94 operating reactors. According to Energy Information Administration data, that’s about 37 percent more electricity than the 576.9 TWh produced in 1990 by a much larger fleet of 112 reactors.

Nuclear News has tracked and analyzed the capacity factors of the U.S. fleet since the early 1980s, before concerted industry efforts yielded unforeseen performance improvements. High nuclear capacity factors are now less an achievement than an expectation. So much so, in fact, that advanced reactors in development today are assumed to be capable of achieving capacity factors above 90 or even 95 percent.

The U.S. fleet has maintained a median capacity factor near 90 percent for 20 years (see Fig. 1), and the median design electrical rating (DER) net capacity factor for 2018–2020, at 91.33, does not disappoint—unless by showing virtually no change relative to the median of 91.34 recorded in 2015–2017. However, this lack of meaningful difference only underscores the consistent reliability of the U.S. fleet.

A large group of nuclear and nuclear-friendly organizations, including the American Nuclear Society, sent a letter on May 24 to Illinois lawmakers urging them to pass the Climate Union Jobs Act (CUJA) before the legislature adjourns at the end of this month.

Among its provisions, the bill would create 74 million megawatt-hours of carbon mitigation credits for Exelon’s Braidwood, Byron, Dresden, and LaSalle nuclear plants. The Clinton and Quad Cities plants, which participate in Illinois’s zero-emission credit program, would not be eligible. (In August of last year, Exelon Generation, owner and operator of all six nuclear plants in Illinois, announced that it would close Byron and Dresden without state support of some kind, adding that Braidwood and LaSalle were also imperiled.)

The Illinois State Capitol in Springfield. Photo: Teemu008/Wikipedia

As Illinois lawmakers race to hammer out a compromise clean energy bill before the current legislative session adjourns on May 31, advocacy group Nuclear Matters is asking members of the state’s nuclear community to speak up in support of state aid for the struggling Byron and Dresden nuclear plants, both of which are scheduled to be prematurely retired later this year by Exelon.

Nuclear Matters has launched a letter-writing campaign to encourage individuals to contact their representatives via a pre-drafted letter to urge passage of legislation that will provide that aid. The letter is one of general support for Illinois’s nuclear plants and not an endorsement of any specific measure.