Originally scheduled for shutdown in 2025, Diablo Canyon nuclear power plant was given at least a few more years of life when in 2022, California lawmakers approved an extension of operations into 2030. The Avila Beach, Calif., plant already has the OK from the Nuclear Regulatory Commission to operate into 2044 and 2045 after the two reactors’ operating licenses were renewed and extended for another 20 years, but state lawmakers still must approve any further extension beyond 2030 if the plant is to remain in operation.

The Nuclear Regulatory Commission has approved subsequent license renewals for St. Lucie Units 1 and 2, extending the operating licenses for the pressurized water reactors by another 20 years.

Tuesday’s approval means that the 1,062-MWe Unit 1 and 1,074-MWe Unit 2 can now operate until March 1, 2056, and April 6, 2063, respectively. Unit 1 commenced operations in 1976 and Unit 2 in 1983. With the original 40-year operating licenses and first 20-year renewals, these second 20-year renewals bring the reactors’ lifespan to 80 years.

Pending, passed, and coveted legislation involving nuclear energy made their way across multiple state capitol buildings in the month of April. Here are a few notable updates from California, Iowa, Kentucky, and Missouri.

The Nuclear Regulatory Commission has approved Pacific Gas & Electric’s application to extend the operating licenses for Diablo Canyon nuclear power plant’s two pressurized water reactors by another 20 years.

Thursday’s approval means Diablo Canyon-1 and -2 can now operate until November 2, 2044, and August 26, 2045, respectively, if California lawmakers agree. A 2022 state law requires the California Legislature to approve any extension of operations at Diablo Canyon that goes beyond 2030.

Proposed legislation in California could exempt certain reactor designs from the state’s long-standing moratorium on new nuclear generation, effectively ending the moratorium.

California Assembly Member Lisa Calderon (D., 56th Dist.) filed A.B. 2647 with the California State Assembly last week.

If the bill progresses and becomes state law, it could pave the way to increasing the number of nuclear reactors in the state in the future. Currently, Diablo Canyon nuclear power plant houses the only operational commercial nuclear reactors in California.

The past few years have seen a concerted effort from many U.S. states to encourage nuclear development. The momentum behind nuclear-friendly policies has grown considerably, with many states repealing moratoriums, courting nuclear developers and suppliers, and in some cases creating advisory groups and road maps to push deployment of new nuclear reactors.

Cornyn

Padilla

Sens. Alex Padilla (D., Calif.) and John Cornyn (R., Texas) have introduced bipartisan legislation to formally establish the Office of Fusion at the Department of Energy. This move seeks to codify one of the many changes put forward by the recent internal reorganization plan for offices at the DOE.

Companion legislation has been introduced in the House of Representatives by Reps. Don Beyer (D., Va.) and Jay Obernolte (R., Calif.), who are cochairs of the House Fusion Energy Caucus.

Details: According to Obernolte, “Congress must provide clear direction and a coordinated federal strategy to move fusion from the lab to the grid, and this legislation does exactly that.”

Pacific Gas & Electric has announced that the California Coastal Commission, the state agency in charge of protecting California’s roughly 840 miles of coastline, unanimously voted to approve the Act Consistency Certification and Coastal Development Permit for Diablo Canyon, a critical step in the utility’s work to extend the life of the nuclear power plant.

The University of California, through its Initiative for Fusion Energy, has awarded $8 million in multicampus research grants, in partnership with UC-managed national laboratories, to fund research aimed at accelerating progress toward fusion energy.

Diablo Canyon will host a commercial installation of the first on-site generative artificial intelligence deployment at a U.S. nuclear plant.

Pacific Gas & Electric is deploying Atomic Canyon’s Neutron Enterprise to assist the utility’s management of datasets associated with operations of Diablo Canyon. The software, which runs on Nvidia’s full-stack AI platform, enables intelligent document processing, computation of semantic embeddings, and generative capabilities. Its infrastructure allows nuclear facilities to process and analyze vast amounts of complex documentation with unprecedented speed and accuracy, according to the company.

The Nuclear Regulatory Commission is asking for public comment on its draft supplemental environmental impact statement for Diablo Canyon’s license renewal request.

In response to a petition filed by environmental groups earlier this year, the Nuclear Regulatory Commission will reinvestigate earthquake fault lines and the potential for seismic activity and ensuing damage at California’s Diablo Canyon nuclear power plant.

In budget discussions conducted last week, the California legislature rejected a $400 million budget item to help keep the state’s sole remaining nuclear plant operational.

Diablo Canyon—owned by Pacific Gas & Electric—has been the subject of much debate in California. To meet grid demands during a record hot summer in 2022, Gov. Gavin Newsom had cut a deal to give $1.4 billion to support continued operations at the 2,200-MWe nuclear facility.

A review from the Ninth Circuit Court of Appeals this week denied a challenge to the Diablo Canyon nuclear plant’s license renewal application extension granted by the federal government.

In late 2023, the Nuclear Regulatory Commission agreed to formally docket the California plant’s request to extend plant operations beyond the current license expiration dates of 2024 and 2025 for the two respective units.

The owners of the Diablo Canyon nuclear power plant plan to dredge a massive buildup of shoaled sediment from its seawater intake cove.

Pacific Gas and Electric spokesperson Suzanne Hosn said, “The dredging project in the Diablo Canyon marina will remove approximately 70,000 cubic yards of sediment to prevent circumstances that could impact the power plant’s cooling system. Dredging will take place for the first time since operations began because of a rapid increase in sediment.”

Carbajal

Levin

Reps. Mike Levin (D., Calif.) and Salud Carbajal (D., Calif.) have reintroduced the 100 Year Canister Life Act, which requires nuclear waste canisters to have a design life of at least 100 years. Levin last introduced the bill in 2022, where it died in committee.

Introduced into the House on January 31, the bill (H.R. 7172) would prohibit the Nuclear Regulatory Commission from issuing or renewing any certificate of compliance or license for a dry storage cask for spent nuclear fuel without a finding that the cask “can safely operate with spent nuclear fuel for a period of at least 100 years.” Current NRC regulations set the lifespan requirement of dry storage casks at 40 years.

The full text of the bill can be found here.

Paris Ortiz-Wines

“Nuclear is finding its way into real acceptance and enthusiasm, and that’s really exciting.” So said secretary of energy Jennifer Granholm at the COP27 climate conference last November.

For the past 65 years, humanity has harnessed the power of the atom. Since the grid connection of the world’s first commercial nuclear plant in 1957, nuclear has been an unsung hero in providing reliable, clean energy for generations. Nuclear is the world’s fourth-largest source of energy and the second-largest low-carbon source of energy, per Our World in Data.

And yet, it wasn’t until September of 2021, when it became increasingly clear that the world was entering an energy crisis, that nuclear found its way back into the spotlight. Five months later, with the invasion of Ukraine, countries dependent on Russian gas found themselves in a precarious and costly position.

The Nuclear Regulatory Commission has granted Pacific Gas & Electric a “timely renewal” exemption so the Diablo Canyon nuclear power plant can continue operating while its license renewal application is under review, it was announced yesterday. This new decision clears a major regulatory hurdle to extending the operating license of the Units 1 and 2 beyond their original closure dates of 2024 and 2025, respectively.

LA GRANGE PARK, ILLINOIS – Statement from American Nuclear Society (ANS) President Steven Arndt and ANS CEO/Executive Director Craig Piercy on passage of California Senate Bill 846:

LA GRANGE PARK, Illinois – The American Nuclear Society (ANS) sent a letter to California state legislators urging quick passage of bipartisan legislation (Senate Bill 846) to extend operations of Diablo Canyon nuclear power plant.