Doug Barber

Xcel Energy was the first utility to commit to carbon-free operations by 2050, with an 80 percent reduction by 2030. To achieve this important goal, we recognized that we would have to think and act in innovative ways. This mindset is highlighted in our approach to plant maintenance. In 2019, Xcel created a unique unified learning organization. This approach has leveraged nuclear and nonnuclear expertise and training resources to improve craft skills, address long-term equipment reliability vulnerabilities, implement strategic initiatives, and improve sharing of resources—all of which has improved plant performance.

Xcel Energy’s unique approach has been proven successful in back-to-back Institute of Nuclear Power Operations Maintenance and Technical Training renewals at each of its plants with strengths directly attributed to our unified enterprise and nuclear learning approach, which ensures a focus on nuclear excellence, technician effectiveness, and business efficiency.

The Texas Advanced Nuclear Reactor Working Group—formed recently by the Public Utility Commission of Texas (PUCT) at the direction of Gov. Greg Abbott—hosted its first public meeting last Thursday to discuss the group’s organizational structure and outline a plan to turn Texas into a national leader in the use of advanced nuclear energy.

The Minnesota Public Utilities Commission (PUC) has approved Xcel Energy’s request for a certificate of need to expand spent fuel storage at the utility’s Monticello nuclear power plant.

The additional storage, according to the PUC, requires installation of a second concrete support pad and modular concrete storage system designed to hold 14 additional steel canisters.

Xcel had requested increased outdoor storage to accommodate its plan to extend Monticello’s operational life by 10 years, to 2040.

A recurring leak of water containing tritium has led to the temporary shutdown of Xcel Energy's Monticello nuclear power plant, in Minnesota.

“While the leak continues to pose no risk to the public or the environment, we determined the best course of action is to power down the plant and perform the permanent repairs immediately,” said Chris Clark, president of Xcel Energy–Minnesota, North Dakota, and South Dakota, in a March 23 news release. “We are continuing to work with and inform our state, federal, city, and county leaders in the process.”

Powering down the reactor to shutdown condition started last Friday.

An Xcel Energy news release issued last week regarding the leak of some 400,000 gallons of tritium-containing water at Minnesota’s Monticello nuclear power plant in 2022 has sparked a flood of news stories over the past few days—in large part because the general public had previously been unaware of the leak. (A low-level beta emitter, tritium is a common byproduct of nuclear reactor operation.)

A nuclear-powered hydrogen production facility has commenced operation at Constellation Energy’s Nine Mile Point plant, the company announced this week. The facility is the first of its kind in the United States to generate hydrogen using nuclear power, courtesy of the New York plant’s two boiling water reactors, the 620-MWe Unit 1 and 1,287-MWe Unit 2.

The Nuclear Regulatory Commission has accepted for review Northern States Power Company’s subsequent license renewal application for its Monticello nuclear power plant. A notice of the agency’s decision, along with information on requests for a hearing in the matter, was published in the March 3 Federal Register.

Xcel Energy subsidiary Northern States Power Company has submitted to the Nuclear Regulatory Commission a subsequent license renewal application for the utility’s Monticello reactor. Notice of the agency’s receipt of the application was published in the January 31 Federal Register.

Clean energy technology firm Bloom Energy has announced plans to install a 240-kW electrolyzer at Xcel Energy’s Prairie Island plant in Red Wing, Minn., to demonstrate the benefits of producing hydrogen with nuclear power. (One of Xcel’s two nuclear plants, Prairie Island houses twin 550-MWe pressurized water reactors.)

Using nuclear power technology to produce clean hydrogen is getting a visibility boost as the Department of Energy hosts a virtual three-day (June 6–8) Annual Merit Review and Peer Evaluation Meeting on the agency’s efforts to accelerate clean hydrogen production. On June 6, the DOE announced a notice of intent (NOI) to fund the Bipartisan Infrastructure Law’s $8 billion program to develop regional clean hydrogen hubs (H2Hubs) and the launch of a new Hydrogen Shot Incubator Prize that seeks “disruptive technologies” to reduce the cost of clean hydrogen production. That same day, Westinghouse Electric Company and Bloom Energy Corp. (a maker of solid oxide electrolyzer technology) announced a letter of intent to develop electrolyzers for use in the commercial nuclear power market and said they are “well positioned to support the U.S. Department of Energy’s developing hydrogen hubs.”

Nuclear power plants are not quick to change. So when four utilities announce they will make room for shiny new electrolyzers and consider tweaking their business model, that’s news.

Nuclear power plants can leverage the energy stored in some of the world’s heaviest elements to generate the lightest: hydrogen. That is not news, but it casts an aura of alchemy over straightforward engineering. Amid the hype, and the hope of significant federal funding, it’s worth acknowledging that hydrogen has an industrial history over 100 years old. In the potential matchup of hydrogen and nuclear power, it’s nuclear that would be the newcomer.

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.

If you’re hearing for the first time that October 8 is Hydrogen Day, you might be wondering, “Why October 8?” and “What’s the connection to nuclear?”

ANS Nuclear Newswire has the answers.

Arizona Public Service is the latest nuclear utility with confirmed plans to install hydrogen production capacity, an investment decision that is based on analysis conducted under the Department of Energy’s H2@Scale program and backed by a $20 million DOE award.

Approximately 40 percent of cumulative carbon dioxide emission reductions needed to meet sustainability targets rely on technologies not yet commercially deployed on a mass-market scale, according to last year’s Special Report on Clean Energy Innovation from the International Energy Agency.

Whitehouse

Crapo

Intent on lowering that percentage, both the Senate and House earlier this week introduced bipartisan legislation to rapidly scale up and diversify emerging energy technologies. On July 27, Sens. Mike Crapo (R., Idaho), ranking member of the Senate Finance Committee, and committee member Sheldon Whitehouse (D., R.I.) introduced the Energy Sector Innovation Credit (ESIC) Act, or S. 2475. The credit, according to Crapo’s office, is a technology-inclusive, flexible investment tax credit (ITC) or production tax credit (PTC) designed to promote innovation across a range of clean energy technologies, including generation, energy storage, carbon capture, and hydrogen production.

Xcel Energy’s Prairie Island plant. Photo: Xcel Energy

Xcel Energy’s Prairie Island is the probable location for the nation’s first demonstration of high-temperature steam electrolysis at a nuclear power plant. Idaho National Laboratory, which plays a key role in a hydrogen demonstration project launched last year with Xcel Energy, Energy Harbor, and Arizona Public Service (APS), announced on November 9 that Prairie Island, which houses two 550-MWe pressurized water reactors, would likely be chosen over the one-unit boiling water reactor plant at Monticello.

Minneapolis-based Xcel Energy will work with INL to demonstrate a system that uses the plant’s steam and electricity to split water. The resulting hydrogen will be used at the power plant, but excess hydrogen could be sold to other industries. Hydrogen has applications in transportation and in industrial sectors, including steel and ammonia production.

More than $10 million in federal funding for the Xcel Energy demo was announced by the Department of Energy on October 8. It is just one phase of a project that showcases collaboration between the DOE’s Office of Nuclear Energy and Office of Energy Efficiency and Renewable Energy. Commercial hydrogen production via low-temperature electrolysis is being demonstrated at Energy Harbor’s Davis-Besse plant. APS, which operates the Palo Verde generating station, will build on the Xcel Energy demo to develop an initial design and feasibility assessment for plant modifications to integrate a reversible hydrogen electrolysis system with the plant’s secondary system and will include hydrogen storage infrastructure.

Two projects intended to accelerate the deployment of hydrogen production technology at existing U.S. light-water reactors received the bulk of the funding announced by the Department of Energy’s Office of Nuclear Energy (NE) on October 8 under the ongoing U.S. Industry Opportunities for Advanced Nuclear Technology Development funding opportunity announcement (FOA). Out of three projects with a total value of $26.9 million, the two involving hydrogen production have a total value of $26.2 million.

Over the past three years, some of the country's biggest utilities have been committing to weaning themselves off carbon-emitting generation by 2050, reported a September 16 story from Green Tech Media (GTM).

Here's a look at the five largest U.S. utilities by market capitalization that have set net-zero targets so far:

This year’s Utility Working Conference, held on August 11, had a dynamic opening plenary and a packed roster of informative sessions. Following are recaps of some of the 12:00 p.m. (EDT) sessions that took place.

You can read about the UWC's opening plenary here.

Look for more meeting recaps later today.

Bowing to current COVID-19 realities but buoyed by the success of June’s virtual Annual Meeting, ANS event planners returned to the virtual realm for this year’s Utility Working Conference. Originally scheduled for August 9–12 at Marco Island, Fla., the condensed event was held Wednesday, August 11, wherever registrants’ computer devices happened to be located.

In addition to 26 educational sessions and workshops, UWC 2020 featured an opening plenary session titled “Achieving Transformational Change: A leadership discussion,” moderated by Bob Coward, MPR Associates principal officer and ANS past president (2017–2018). Plenary panelists included representatives from three utilities—Arizona Public Service (APS), Exelon, and Xcel Energy—plus the Institute of Nuclear Power Operations (INPO) and the Nuclear Regulatory Commission.

In addition to coverage of the opening plenary further below, Newswire also covered other UWC sessions from the day, which are available for reading here:

• More from UWC 2020 Click here
• More from UWC 2020: Round 2 Click here
• More from UWC 2020: Round 3 Click here

The opening plenary coverage starts directly below: