Exelon

Spun out of Exelon Corp. a year ago, Constellation Energy’s competitive generation and customer-facing energy businesses represent a new power company paradigm that conforms to decarbonization. But the company that today holds the largest nuclear fleet in the U.S. will still face a unique array of challenges.

Baltimore Gas & Electric set out to build the 1.8-GW Calvert Cliffs Nuclear Power Plant in 1967 because fossil energy was becoming expensive and controversial. Over its nearly 50 years of operation

Duquesne Light Company, ComEd and Pacific Gas and Electric identifying unique ways to enhance underground infrastructure and improve worker and public safety PITTSBURGH — Duquesne Light Company (DLC) today announced that Commonwealth Edison (ComEd) — an Exelon Corporation unit — and Pacific Gas and Electric Company (PG&E) have joined the first phase of its public […]

The energy transition will bring with it a new generation of cybersecurity challenges for the power sector. While information-sharing has been valuable, strategies to address issues related to vendor security, cyber talent, and lagging investment will also be critical, a former utility supply chain executive who led the development of an industry-wide cybersecurity risk exchange […]

I have long been a supporter of nuclear power. I’ll admit I’m biased, having spent 13 years in the U.S. Navy’s nuclear power program and having worked for several more years in the commercial nuclear

Palo Verde Generating Station, a 4-GW nuclear power plant in Arizona, is gearing up to produce hydrogen from a low-temperature electrolysis (LTE) system, and that hydrogen will then be used to fuel a natural gas–fired power plant owned by Arizona Public Service (APS). The innovative power-to-power demonstration led by PNW Hydrogen is set to receive […]

Exelon Generation has filed plans to decommission its Dresden and Byron nuclear power plants in Illinois, citing a lack of action from state lawmakers on clean energy legislation that would help save the facilities. The nation’s largest operator of nuclear power plants on July 28 said it has submitted its plans to the Nuclear Regulatory […]

Responding to rapid changes in the power industry, Exelon Corp. plans to cleave its business into two publicly traded companies: one comprising its six regulated electric and gas utilities, and the other, which it plans to spin off, comprising its 31-GW competitive generation fleet and customer-facing businesses.  The separation—which the company’s Board of Directors approved […]

In another significant boost to commercial deployment of accident-tolerant fuel (ATF) at existing nuclear reactors, the first 18-month fuel cycle test of Framatome’s GAIA Enhanced Accident Tolerant Fuel (EATF) at Southern Co.’s Vogtle 2 has “demonstrated expected results and excellent performance,” Framatome said on Feb. 2. Southern Nuclear installed four GAIA lead fuel assemblies (LFAs) […]

A focus on continuous improvement has helped the nuclear power industry shine in recent years. The U.S.'s fleet of nuclear reactors has achieved average capacity factors of more than 92% over the past five

In a stunning announcement, Exelon Generation, which operates the largest U.S. fleet of nuclear plants—21 reactors at 12 facilities in Illinois, Maryland, New York, and Pennsylvania—said it will retire the Byron and Dresden generating stations next fall for economic reasons. “Although we know in our heads that shutting down the uneconomic Illinois plants is necessary […]

It’s an article of faith in large parts of the U.S.—at least among power industry people—that organized and Federal Energy Regulatory Commission (FERC)–regulated “merchant” interstate power markets are the best way to ensure a sufficient supply of electricity, as well as to ensure fair and equitable prices for ratepayers. On that basis, large areas of […]

Four U.S. nuclear generators—Energy Harbor, Xcel Energy, Exelon, and Arizona Public Service (APS)—are making headway on projects to demonstrate hydrogen production at nuclear plants, but scaling those efforts up to net new end-users and sources of revenue is still ridden with hurdles, company officials said in a panel discussion at the American Nuclear Society’s (ANS’s) […]

It’s spring outage season in the power industry. A time when plants of all types typically shut down and perform scheduled maintenance to ensure all essential equipment is as ready as possible to run reliably at full load for days on end during the peak summer season. This year, outages have been complicated by the […]

It’s a rite of spring for the U.S. nuclear power industry. Plant operators schedule refueling outages, taking a reactor offline not only to refuel but also to perform repairs or other maintenance, and facility upgrades. It’s a task made more problematic this year, as social distancing and travel restrictions brought on by the COVID-19 pandemic […]

Energy companies and equipment suppliers to the power generation industry have been at the forefront of efforts to battle the COVID-19 pandemic. Utilities have suspended shutoffs of services to customers impacted by the economic crisis, and have instituted protocols to maintain proper staffing levels to ensure the reliable delivery of electricity during a time when […]

The U.S. Nuclear Regulatory Commission (NRC) granted a 20-year license extension for Peach Bottom Atomic Power Station Units 2 and 3. The extension authorizes the two reactors—both of which began commercial operation in 1974—to continue operating through 2054. “We are pleased with the NRC’s decision to grant a subsequent license renewal for Peach Bottom Units […]

The Combustion Turbine Operations Technical Forum (CTOTF) recently announced the winners of the 2nd annual CTOTF/POWER Innovation Excellence awards, which recognize outstanding performance in various

Digitization in the power generation sector continues to expand. Its goal in simple terms—providing easy access to data for power plant operators and engineers, enabling the use of advanced analytics to improve equipment performance and efficiency—has resulted in reduced operating costs for utilities, and also has enhanced plant safety. POWER’s upcoming Connected Plant Conference, set […]

Global Nuclear Fuel (GNF), a GE-led joint venture with Hitachi Ltd. that supplies boiling water reactor fuel and fuel-related services around the world, said lead test assemblies utilizing its ARMOR-coated zirconium cladding and IronClad Accident Tolerant Fuel solutions have been installed at Exelon’s Clinton nuclear plant in Illinois. “We continue to work with our customers […]

PJM Interconnection will not run a base residual auction (BRA) until the Federal Energy Regulatory Commission (FERC) approves recalculated Minimum Offer Price Rule (MOPR) floor prices for new and existing resources as directed by the federal entity’s ground-shaking Dec. 19 capacity market order. But when that will occur is still highly uncertain. In a presentation […]

On Dec. 19, the Federal Energy Regulatory Commission (FERC) directed PJM Interconnection to dramatically expand its Minimum Offer Price Rule (MOPR) to nearly all state-subsidized capacity resources, including renewables backed by state portfolio standards. It’s the latest of a series of dramatic revisions to the grid operator’s rule, which essentially functions to provide a minimum […]

Exelon Generation said EDF Group—a French integrated electricity company—is exercising a put option to sell its 49.99% interest in the R.E. Ginna, Nine Mile Point, and Calvert Cliffs nuclear energy facilities. The two companies will now begin negotiations for Exelon to acquire full ownership of the plants. EDF’s involvement in the facilities was through the […]

The CEO of major U.S. energy company Exelon Utilities retired on Oct. 15, leaving the company as federal officials investigate Exelon’s lobbying activities at the Illinois State Capitol. The retirement of Anne Pramaggiore, 61, who became CEO of Exelon Utilities in 2018, comes less than a week after Exelon subsidiary Commonwealth Edison (ComEd), Illinois’ largest […]

Exelon’s Byron Unit 2 nuclear power plant has completed installation of EnCore Fuel, Westinghouse Electric Co.’s accident-tolerant fuel (ATF) solution, marking the start of the first test of uranium silicide fuel pellets in a commercial nuclear reactor.  The installation, completed during the plant’s scheduled 18-day spring refueling outage this April, but publicly announced on Sept. […]

A first-of-its-kind project spearheaded by Exelon, the nation’s largest nuclear power generator, and Norwegian firm Nel Hydrogen could demonstrate an integrated hydrogen production, storage, and utilization facility at an existing nuclear plant site. If the project comes to fruition, it could shed light on a new and potentially lucrative revenue stream for existing nuclear power […]

The world’s nuclear sector is struggling to stay economically afloat amid a deluge of renewables and natural gas power, and reinvigorating it will require operational flexibility from new or existing

Power plant SO2 and NOx emissions have decreased 92% and 84%, respectively, since Congress passed major amendments to the Clean Air Act in 1990. Meanwhile, mercury air emissions from power plants have decreased 90% since 2000, as federal limits on mercury and other hazardous air pollutants from coal-fired power plants went into effect in 2015. […]

The U.S. Supreme Court’s refusal to reconsider industry-led challenges to state nuclear subsidy programs in New York and Illinois leaves the contentious matter to the Federal Energy Regulatory Commission (FERC).  The high court on April 15 declined to accept petitions for review of decisions by the Second Circuit and Seventh Circuit, dealing a major blow […]

Time is winding down for lawmakers interested in enacting legislation to save the Three Mile Island (TMI) nuclear plant. That message was amplified on April 5 when Exelon Corp. filed the federally required Post Shutdown Decommissioning Activities Report (PSDAR) with the Nuclear Regulatory Commission. The PSDAR details plans for TMI Unit 1 after its final […]