The Brief

Diablo Canyon, California’s sole remaining nuclear power plant, has been left for dead on more than a few occasions over the last decade or so, and is currently slated to begin a lengthy decommissioning process in 2029. Despite its tenuous existence, the San Luis Obisbo power plant received some serious computing hardware at the end of last year: eight NVIDIA H100s, which are among the world’s mightiest graphical processors. Their purpose is to power a brand-new artificial intelligence tool designed for the nuclear energy industry.

Pacific Gas & Electric, which runs Diablo Canyon, announced a deal with artificial intelligence startup Atomic Canyon—a company also based in San Luis Obispo—around the same time, heralding it in a press release as “the first on-site generative AI deployment at a U.S. nuclear power plant.”

For now, the artificial intelligence tool named Neutron Enterprise is just meant to help workers at the plant navigate extensive technical reports and regulations — millions of pages of intricate documents from the Nuclear Regulatory Commission that go back decades — while they operate and maintain the facility. But Neutron Enterprise’s very existence opens the door to further use of AI at Diablo Canyon or other facilities — a possibility that has some lawmakers and AI experts calling for more guardrails.

PG&E is deploying the document retrieval service in stages. The installation of the NVIDIA chips was one of the first phases of the partnership between PG&E and Atomic Canyon; PG&E is forecasting a “full deployment” at Diablo Canyon by the third quarter of this year, said Maureen Zawalick, the company’s vice president of business and technical services. At that point, Neutron Enterprise—which Zawalick likens to a data-mining “copilot,” though explicitly not a “decision-maker”—will be expanded to search for and summarize Diablo Canyon-specific instructions and reports too.

“We probably spend about 15,000 hours a year searching through our multiple databases and records and procedures,” Zawalick said. “And that's going to shrink that time way down.”

Trey Lauderdale, the chief executive and co-founder of Atomic Canyon, told CalMatters his aim for Neutron Enterprise is simple and low-stakes: he wants Diablo Canyon employees to be able to look up pertinent information more efficiently. “You can put this on the record: the AI guy in nuclear says there is no way in hell I want AI running my nuclear power plant right now,” Lauderdale said.

That “right now” qualifier is key, though. PG&E and Atomic Canyon are on the same page about sticking to limited AI uses for the foreseeable future, but they aren’t foreclosing the possibility of eventually increasing AI’s presence at the plant in yet-to-be-determined ways. According to Lauderdale, his company is also in talks with other nuclear facilities, as well as groups who are interested in building out small modular reactor facilities, about how to integrate his startup’s technology. And he’s not the only entrepreneur eyeing ways to introduce artificial intelligence into the nuclear energy field.

In the meantime, questions remain about whether sufficient safeguards exist to regulate the combination of two technologies that each have potential for harm. The Nuclear Regulatory Commission was exploring the issue of AI in nuclear plants for a few years, but it’s unclear if that will remain a priority under the Trump administration. Days into his current term, Trump revoked a Biden administration executive order that set out AI regulatory goals, writing that they acted “as barriers to American AI innovation.” For now, Atomic Canyon is voluntarily keeping the Nuclear Regulatory Commission abreast of its plans.

Tamara Kneese, the director of tech policy nonprofit Data & Society's Climate, Technology, and Justice program, conceded that for a narrowly designed document retrieval service, “AI can be helpful in terms of efficiency.” But she cautioned, “The idea that you could just use generative AI for one specific kind of task at the nuclear power plant and then call it a day, I don't really trust that it would stop there. And trusting PG&E to safely use generative AI in a nuclear setting is something that is deserving of more scrutiny.”

For those reasons, Democratic Assemblymember Dawn Addis—who represents San Luis Obispo—isn’t enthused about the latest developments at Diablo Canyon. “I have many unanswered questions of the safety, oversight, and job implications for using AI at Diablo,” Addis said. “Previously, I have supported measures to regulate AI and prevent the replacement and automation of jobs. We need those guardrails in place, especially if we are to use them at highly sensitive sites like Diablo Canyon.”

How AI came to SLO

Before Lauderdale moved into artificial intelligence and nuclear energy, he founded a health care software company called Voalte, which was designed to help hospital staff communicate over iPhones, reducing their reliance on loudspeaker paging and desktop computer systems. At the time, circa 2008, Lauderdale said his pitch was met with worries and resistance from hospital staff. He likes to draw parallels between that experience, which culminated in 2019 when he sold his company to a hospital bed manufacturer for $180 million, and the pushback he’s heard about Atomic Canyon.

In 2021, Lauderdale moved to San Luis Obispo so he, his wife, and kids could be closer to his wife’s family in Northern California. Lauderdale told CalMatters he didn’t realize how close Diablo Canyon was to his new home until after he relocated. It was through meeting Diablo Canyon workers out in the community, he says, that he learned more about nuclear energy and landed on his next startup idea.

Atomic Canyon launched in 2023 with a task of downloading roughly 53 million pages of publicly available Nuclear Regulatory Commission documents, which encapsulate all of America’s nuclear energy fleet and are available on a database called ADAMS. That process started around January 2024, after Lauderdale gave the Nuclear Regulatory Commission a heads-up about what Atomic Canyon was planning to do: “I reached out to [the commission] just to say, hey, I'm Trey Lauderdale, American citizen, entrepreneur. We're going to start building AI in the nuclear space, and we just wanted to make sure the NRC was aware that when they see all these downloads, it's not a foreign actor or someone trying to do anything bad to their system.”

Lauderdale said the commission supported Atomic Canyon’s efforts. After downloading the data, Atomic Canyon partnered with the Department of Energy’s Oak Ridge National Laboratory in Tennessee to kick off research and development. The lab houses the Frontier supercomputer, which was the world’s fastest when it debuted two years ago. Atomic Canyon used Frontier to build a form of AI that can perform “sentence-embedding models,” which Lauderdale says are capable of processing nuclear jargon and are less likely to “hallucinate,”or answer a question using fabrications.

“You basically teach the artificial intelligence how to understand nuclear words, their context, what different acronyms mean,” he said.

In the spring of 2024, Lauderdale and PG&E representatives kicked off formal discussions about how Atomic Canyon could be of use at Diablo Canyon. PG&E soon invited Atomic Canyon staff to visit the nuclear facility, where they shadowed employees for a few weeks, “observing where there were operational inefficiencies that we could try to target with AI,” Lauderdale said.

Then, in September 2024, Atomic Canyon announced the completion of testing on its AI, referred to as “FERMI”; these models, which are open-source, are what collectively make up the Neutron Enterprise software. A few months later, in November, came the first-of-its-kind announcement with PG&E.

How Neutron Enterprise works

PG&E brought in NVIDIA hardware to Diablo Canyon to run FERMI. Zawalick and Lauderdale both told CalMatters that the Neutron Enterprise software is being installed without cloud access so that sensitive, internal, documents don’t leave the site. Zawalick said their data storage policies meet all Nuclear Regulatory Commission and Department of Energy nuclear information requirements, and will be continuously tested and inspected.

Initial Neutron Enterprise users are currently only using the software to search through publicly available regulatory data. PG&E and Atomic Canyon hope to initiate the next phase of Neutron Enterprise’s rollout in the third quarter of 2025, when more on-site employees will be able to use the service, and it will be able to search for and summarize internal documents by utilizing optical character recognition (which allows more documents to be indexed), and retrieval-augmented generation (which allows more flexible querying).

According to Lauderdale, the use of artificial intelligence to speed up document searches isn’t risky. If AI fails to find the information sought by a worker, the person can “just fall back to the previous way they would search,” he said, referring to sifting through multiple on-site databases and sometimes manually pulling paper files.

Pacific Gas & Electric vehicles are parked at the PG&E Oakland Service Center in Oakland on Jan. 14, 2019.

(

Ben Margot

/

AP Photo

)

Neutron Enterprise also generates short summarizations of documents while users are searching databases, and it’s possible those summarizations could produce incorrect information, too — but they would not alter the actual contents/instructions contained within the documents that are read over by workers.

CalMatters asked a number of state lawmakers — especially those near Diablo Canyon — what they think of Atomic Canyon’s first-of-its-kind partnership with PG&E. The consensus response was positive, though tailored to Neutron Enterprise’s currently limited functionality.

Malibu Democratic Sen. Henry Stern, a member of the Senate Energy Committee, told CalMatters he’s “reticent to rain on AI tools that can do better grid management,” so long as proper safety protocols are followed. Democratic Sen. John Laird, who represents San Luis Obispo, took an even-keel stance: “As AI integration expands, so does its energy demand… Balancing technological advancement with public safety, environmental stewardship, and regulatory oversight will be critical in shaping AI’s role in our state’s energy future,” he said. San Francisco Sen. Scott Wiener, whose ambitious AI safety legislation was vetoed by the governor last year, agrees with his Democratic colleagues: “If AI can help improve the day-to-day efficiencies of Diablo Canyon, that's great.”

Out of five San Luis Obispo County Board of Supervisors, three responded to requests for comment. Supervisor Bruce Gibson said that “using AI to access and organize required information in this situation makes sense,” but he stressed the need for transparency and public updates from PG&E. Supervisor Heather Moreno said that it’s a good thing PG&E will be taking “advantage of a ‘supercharged’ search engine… As it will not be used for operations, this appears to be a good first step in using AI at Diablo Canyon.” And Supervisor Dawn Ortiz-Legg, a former PG&E employee, said she was “encouraged” that Diablo Canyon was working with Atomic Canyon “to navigate the enormous amounts of data collected from thousands of pages of audits and reports.”

Varying rules and regulations

However innocuous the use of AI at Diablo Canyon today, there are big-picture concerns about how the technology could later be used there and at other facilities. “I think we have to be really careful when we talk about broader AI decision-making,” Wiener said. “That's why it's really, really important to beef up government capacity to set standards around use of AI in sensitive contexts such as a nuclear power plant.”

In November 2024, Nuclear Regulatory Commission Inspector General Robert J. Feitel came to the same conclusion. He identified “planning for and assessing the impact of Artificial Intelligence and Machine Learning on nuclear safety and security” as one of the nine major challenges the agency faced. The month prior, a commission-sponsored report by the Southwest Research Institute looked into artificial intelligence-related “regulatory gaps” in the nuclear energy industry. It found fewer than 100 gaps, but also noted that “no practical AI standards were identified” from outside sources that could help address those gaps. The report recommended developing a number of AI-specific guides.

Atomic Canyon and PG&E appear to be keeping the Nuclear Regulatory Commission in the loop on their own accord. “I wouldn't claim we have an official relationship with the NRC, but we make sure to brief them on what we're doing, because, being newer in the nuclear industry, surprises are bad,” Lauderdale said. He believes that the nuclear energy industry’s cautious approach will, in itself, act as a “natural buffer” against overly invasive or dangerous AI integrations, though he conceded that “as we start to traverse into applications that do introduce risk, we absolutely will want guardrails and regulation to make sure that AI is properly deployed.”

When CalMatters first spoke with PG&E’s Zawalick in December, she mentioned she’d just recently met with the Nuclear Regulatory Commission’s AI working group, an advisory committee of sorts. Since then, she hasn’t had further discussions with the commission about AI regulations, she recently told CalMatters.

And the Diablo Canyon Independent Safety Committee, a state-appointed safety group that inspects the nuclear facility and provides recommendations about its operations, first learned about PG&E’s deal with Atomic Canyon through media reports, the committee’s legal counsel Bob Rathie told CalMatters. In December 2024 and January 2025, a committee representative participated in two fact-finding visits about Neutron Enterprise, meeting with PG&E workers to learn more about the software. The committee concluded from those visits that Diablo Canyon’s use of artificial intelligence is “positive,” and they have no safety concerns at this time.

What happens next?

Lauderdale spoke to CalMatters while traveling to another nuclear facility, though he couldn’t reveal which one. He said that Atomic Canyon is “in discussions” with “many other nuclear organizations,” and that some “really exciting announcements” will come later this year. Through Atomic Canyon’s partnership with Diablo Canyon, he wants to demonstrate a proof of concept for existing nuclear facilities, as well as companies interested in building or re-commissioning nuclear facilities. He hopes Diablo Canyon’s lifecycle is expanded beyond the current decommissioning timeline, but if it’s not, his software can be used for the facility’s decommissioning process, he said.

“As we gain more trust in the product and build out more capabilities, we will pick other non-risky activities that will take off one-by-one, and we'll keep creating more value with this new technology,” he said.

Responding to questions about whether the rollout of AI at Diablo Canyon has had sufficient oversight, Lauderdale reiterated that his startup product does not have a significant operational role.

“I consider our company the leader in deploying AI and nuclear,” he said, before giving a future-facing assessment that left the door just slightly ajar: “and I think we will not have AI running nuclear power plants for a very long time.”

This article was originally published on CalMatters and was republished under the Creative Commons Attribution-NonCommercial-NoDerivatives license.

Angelenos took to the streets of downtown Los Angeles and Westwood on Saturday in response to the U.S.-Israeli military strikes in Iran.

• Read: What you should know about local protests, reaction and law enforcement actions

A coalition of organizations, including the National Iranian American Council, the ANSWER coalition and 50501, held protests nationwide in reaction.

Local demonstrations took place outside City Hall in downtown Los Angeles, as well as in Ventura and Orange counties.

In Westwood, Iranian Americans gathered to celebrate the strikes. More demonstrations are planned for today and tomorrow.

Here are photos from Saturday.

Westwood

Hundreds rally seeking regime change in Iran in Westwood on Saturday, Feb. 28, 2026, in Los Angeles. The rally was organized after word spread that the U.S. and Israel had bombed Iran overnight, Pacific time, killing Iran's Supreme Leader Ayatollah Ali Khamenei, among others.

(

Genaro Molina

/

/Los Angeles Times via Getty Image

)

Hundreds rally waving the historical Iranian Lion and Sun and American flags in Westwood on Saturday.

(

Genaro Molina

/

Los Angeles Times

)

Hundreds rally in Westwood seeking regime change in Iran.

(

Genaro Molina

/

Los Angeles Times via Getty Image

)

A man walks under the colors if Iran while joining hundreds in a rally seeking regime change in Iran in Westwood on Saturday.

(

Genaro Molina

/

Los Angeles Times via Getty Image

)

Downtown Los Angeles

A protester holds a poster reading "drop the files not the bombs" during a demonstration against the war in Iran in front of City Hall in Los Angeles on Feb. 28, 2026.

(

Etienne Laurent

/

AFP via Getty Images

)

A crowd gathered at Los Angeles City Hall to protest against United States and Israel bombing Iran on Saturday, Feb. 28, 2026.

(

Myung J. Chun

/

Los Angeles Times via Getty Images

)

A protester holds a portrait of Iran's supreme leader Ayatollah Ali Khamenei and a flag of Iran during a demonstration against the war in Iran in front of City Hall.

(

Etienne Laurent

/

AFP via Getty Images

)

Protesters hold placards reading "no new US war in the Middle East" during a demonstration against the war in Iran in front of City Hall.

(

Etienne Laurent

/

AFP via Getty Images

)

A man holds a sign at Los Angeles City Hall to protest against United States and Israel bombing Iran.

(

Myung J. Chun

/

Los Angeles Times via Getty Images

)

Walk through cities around the world and it's easy to spot the trend: utility boxes painted and transformed into public art to spiff up neighborhoods.

In downtown Los Angeles, street artist S.C. Mero has taken the idea of the utility box as art in a different direction with one she’s installed in the Arts District.

“Would you like me to open it up and you can see?” she asked on a recent morning.

At first glance, it looks like an ordinary electrical cabinet — gray, about the size of a refrigerator, with slotted vents. But instead of the usual fire-resistant metal, this one is made of wood with a faux concrete base.

The box theater incognito.

(

Courtesy of S.C. Mero

)

Mero spins two combination locks and pulls open the door.

A hidden theater

Inside, instead of a tangle of cables and cords, red crushed velvet covers the walls from top to bottom.

A gilded clock and gold-framed pictures of two other electrical boxes (“possibly its mother, and its great-grandfather”) adorn the tiny interior, inspired by one of downtown’s oldest and grandest movie palaces, the Los Angeles Theatre.

“The first time I went into that theater, the feeling that I had, I wanted people to have a similar feeling when they opened this up,” she said.

Like the theater, the box is meant to bring audiences together. Mero invites performers to step inside, and since its installation a few weeks ago, some 30 poets, magicians, puppeteers and clowns have reached out about using the space.

Many are female artists.

“Maybe it's because of the scale of it, they feel like they can actually have a chance to get inside,” Mero said.

A tradition of unexpected art

The box theater sits on the 800 block of Traction Avenue, across the street from the historic American Hotel, an early hub for artists in the neighborhood.

Jesse Easter, the hotel’s night manager, has a front-row seat to the box theater performances.

“The Arts District is still alive,” he proclaims.

Easter first arrived in the neighborhood in the 1980s, a blues and rock musician who also professionally installed art.

He said the Arts District has long been known for unconventional public art. Famously, in 1982, artist Dustin Shuler pinned a Cessna airplane to the side of the American Hotel with a 20-foot-long nail.

“I was one of the people that was in the hotel that saw the room that the nail came down into, went through the brick wall, into the floor and stopped,” Easter recalls.

Easter says Mero’s installations boldly continue that tradition of guerrilla street art in the neighborhood.

After graduating from USC in 2011, she started to make sculptural works with overlooked street fixtures, exploring issues such as addiction and homelessness.

Before the box theater, there was a giant mailbox.

(

Courtesy of S.C. Mero

)

Before the theater box, Mero installed an oversized mailbox at the same corner, towering over passersby, symbolizing a housing market that remains out of reach for many Angelenos.

Elsewhere in the Arts District on Rose Street, she has installed a 13-foot-tall parking meter sculpture, commentary on the overwhelming nature of parking in the city.

Realizing a dream 

The box theater is perhaps the piece that has invited the most participation.

Jesse Easter, a musician and night manager at the American Hotel, prepares to perform at the box theater.

(

Courtesy of S.C. Mero

)

Last week, Mero asked Easter and other local artists to perform there. He played a blues song he wrote more than 40 years ago when he first moved to the Arts District.

“It was sunset, and I was thinking, this kind of is the bookend,” he said.

Other participants performed spoken word poetry and played saxophone.

One performer, Mike Cuevas, discovered the theater by accident.

An Uber driver, Cuevas was waiting for his next delivery order by the box theater as it was being prepped ahead of the night’s performance.

Mero recalls him getting out of his car to look at what she was doing.

“He's like, what's going on here? This looks so cool,” Mero said. “He said as he's driving throughout the city, in between his rides, he writes poetry.”

Cuevas, who goes by the pen name Octane 543(12), left to make a delivery in East L.A., but he said “something in his heart” told him to return that evening.

After watching others perform, he stepped up to the box and read his poetry in public for the first time, a piece about Latino pride.

Mike Cuevas, aka Mike Octane 543-12, publicly reads his poetry for the first time.

(

Courtesy of S.C. Mero

)

“Another generation will pass through,” he recited. “And they'll understand why we honor with proud delight, the continuous fight for the history of our brothers and sisters.”

Cuevas didn’t know Mero by name or anything about her work, but thanked her for giving him a venue.

“I just felt something beautiful with her art,” Cuevas said. “It's time for me to start expressing myself. She inspired me to do exactly what she's doing, but through poetry.”

He now plans to read again at an open mic in downtown L.A. next week.

An overture to look inside

Mero says the project has spoken to her personally, too. Growing up in Minnesota, she loved art as a child but later focused on playing lacrosse and hockey. At USC, she studied public relations.

“Once I started getting so into art, everyone was kind of shocked,” Mero said. “That's why I really want to encourage people to go inside themselves and see what's there, because you never know.”

Mero is hoping for a long run for the box theater. Its predecessor, the supersize mailbox, stayed up for five years, only toppled, she heard, after skateboarders accidentally ran into it.

In the meantime, the small theater sits unassumingly on the sidewalk waiting for its next performer, its exterior starting to collect graffiti like any other utility box.

It’s whale watching season, which always makes me think of the novel Moby-Dick.

In the book, Captain Ahab chased a whale for vengeance. I recently chased whales off the coast of Los Angeles, but in my case, it was in pursuit of the beauty and majesty of the natural world.

With warm — relative to Alaska — spring waters, migratory rest-stops and great feeding grounds, Los Angeles County’s coast is considered part of the “Blue Highway,” a crucial whale migration corridor and one of the best places to spot the gentle giants.

According to Cabrillo Marine Aquarium program director Jim DiPompei, many whales can be seen right in our backyard.

“There’s a little over 90 species of cetaceans (marine mammals) in the world, and we see about 30% of the species we could possibly see here in Southern California,” DiPompei told The LA Local.

Cetacean species you may spot in our waters include humpback whales, orcas, blue whales and dolphins. Your best chance, however, is spotting a gray whale. As school bus-sized gray whales migrate back and forth between Alaska and Baja, they consistently hug LA’s coastline.

But where should you go to actually get a good look at whales? Don’t worry — I got you. Here’s The LA Local guide to cruising the Blue Highway.

Top spots to watch whales from shore

Point Vicente Interpretive Center
31501 Palos Verdes Drive West, Rancho Palos Verdes
Free, laid-back, on the mountains!

At the Point Vicente Interpretive Center in Rancho Palos Verdes, you’ll find an overlook dedicated to whale watching. While this is a great free spot for amateurs to come and look out for whales, this is no playground. Professionals conduct the annual whale census here, tracking the migration of whales.

This is a great place to bring a picnic basket and some binoculars to relax while scanning the ocean. Even if you don’t spot any whale action, you can visit the free natural history museum inside, which focuses on the region and its most famous inhabitants: whales. Afterward, step outside and chat with a museum docent accompanying the census watch.

If you want to see whales, stick to the coastal canyons. Canyons aren’t just massive structures above water — they are also mountains beneath the surface, offering depth, cold water and nutrients that attract food for whales. Gray whales tend to follow the canyons to stay away from the dangerous orcas.

Whale spotting 101

Whale watching season typically runs from December through May. It peaks from January to March.

When looking for a whale, try to spot their water mist blowing above the water. Gray whales typically surface for air every five minutes. When they do, they’ll blow out a water mist — that’s your chance to spot and track them until they surface again.

Get on a boat!

If you want to get eye-to-eye and really feel a cetacean’s scale, there are plenty of whale-watching cruises. They typically depart from Marina Del Rey, Redondo Beach, Long Beach, San Pedro, Dana Point and almost anywhere with a port.

Many cruises have a naturalist on board to answer questions and provide expert context to ocean wildlife.

On my tour departing from Long Beach, we saw five gray whales and a swarm of common dolphins feeding.

But be warned: If you get seasick easily, this trip might not be for you. On our two-and-half-hour trip, the boat rocked emphatically as we approached feeding sites. It’s fun if you can imagine yourself on a see-saw, but it might not be that enjoyable if that sounds nauseating.

While boat captains are not allowed to approach the whales too closely due to environmental protections, the whales can approach the boat if they choose. Sometimes the whales seem curious and watch us in return — it’s up to them and how they are feeling.

Get involved

Cabrillo Marine Aquarium
3720 Stephen M. White Drive, San Pedro

If you really catch the whale-watching bug, you’re in luck.

At the Cabrillo Marine Aquarium, they offer a whale-watching naturalist program where you can volunteer and train to be a naturalist on board whale-watching cruises.

DiPompei said they train anyone over the age of 18 “who’s interested in learning about whales and volunteering their time to be on these whale-watching boats to talk to the general public and to talk to students.”

This program was started in the 1970s by John Olge, one of the founders of Cabrillo Marine Aquarium, with an emphasis on education and showing schoolchildren the beauty of our natural world.

The aquarium is also a great place to introduce whales to children. With kid-sized exhibits and educational programs throughout the year, it’s an ideal way to show young ones just how big and beautiful our oceans are.