A regulator's warning over a fearful workplace at Michigan's restarting reactor lands just as data-center demand pulls more insurers toward atomic risk
INSURANCE NEWSBy Matthew Sellers
Oct 26, 2026
The reactor on the Lake Michigan shoreline was supposed to prove that America could bring a retired nuclear plant back from the dead. Instead, Palisades has spent the autumn showing how hard that is when aging hardware, a first-time operator and a firm commercial deadline collide.
On October 13, the Nuclear Regulatory Commission told Holtec International that inspectors had found a "chilled work environment" in two departments at the plant: supply chain and quality assurance. In NRC language, that means employees are reluctant to raise safety or regulatory concerns, in this case largely out of fear of retaliation, according to the agency's follow-up inspection letter.
The inspection ran from July 20 to September 3 and drew on interviews and focus groups with more than 120 people. Plant-wide, inspectors found most staff felt free to speak up. But in the two affected departments, they found the reluctance was driven largely by a perceived fear of being fired, and that it had spilled over into the plant's own corrective action and employee concerns programs. Staff also questioned whether quality assurance could operate independently, and inspectors noted a rise in anonymously filed condition reports in the first half of 2026.
Supply chain and quality assurance are the functions that decide whether the right parts arrive and whether work is done to specification. Those are precisely the controls that property underwriters and loss-control engineers lean on when they price a plant.
A fuel load that went sideways
The workplace finding arrived on top of a more visible problem. Palisades entered refueling mode and began loading fuel into its reactor vessel on August 30, according to Holtec's license amendment request to the NRC. During that reload, a single fuel assembly tilted over after it had been set in place.
No radiation escaped, the NRC told The National, but fuel loading stopped. Holtec later told regulators the assembly was too damaged for the refueling machine's normal grapple to lift, so it fabricated a custom recovery tool and transfer canister. The NRC approved that unusual retrieval plan on the same day it sent the work-environment letter, Michigan Public reported. The regulator is still examining why the assembly tipped.
It is not the plant's first mishap. In October 2025, a worker fell from a refueling bridge into a pool of water but was not seriously hurt, The National reported. The Financial Times has also reported that nine of 15 candidates failed the plant's initial reactor operator licensing exam this summer, leaving six newly licensed operators. Local critics have cited the same figure, though it does not appear in the NRC's public announcements.
Read next: Data centers are reviving US nuclear construction, and most of the insurance work won't be on the reactor
Why fuel loading is an insurance milestone
The timing of the Palisades trouble is important for the insurance industry. Fuel loading is the moment a nuclear project changes hands between two insurance markets. Before it, conventional builders' risk and property carriers do most of the work. After it, specialist nuclear insurers take over the reactor and its surroundings. Marsh's US nuclear energy leader, Everett Hansen, described that handover between construction and nuclear carriers at fuel load in a recent interview.
That specialist market is small and concentrated. Most ordinary property and casualty policies carry a nuclear exclusion, and American Nuclear Insurers, a pool of insurance companies, writes much of the liability cover those exclusions remove. On the property side, AM Best has said the industry mutual Nuclear Electric Insurance Limited writes virtually all US nuclear utility property coverage.
Public liability sits inside a federal framework. Under the Price-Anderson Act, each large reactor site has had to carry $500 million in primary nuclear liability insurance since January 2024. Above that, every reactor of 100 megawatts or more can be assessed roughly $158 million per incident for a shared second layer, according to the Congressional Research Service.
Explainer: how Price-Anderson pays for a nuclear accident
Layer 1, primary insurance. Each large reactor site buys $500 million of liability cover from American Nuclear Insurers.
Layer 2, industry self-insurance. If claims exceed that, ANI can assess every covered reactor up to $158.026 million per incident, payable at no more than $24.714 million a year. The NRC set those caps in an October 2023 inflation adjustment, and the next is due within five years.
Layer 3, Congress. The Congressional Research Service puts total compensation available from the first two layers at roughly $16.6 billion. Above that, Congress decides how further claims are paid.
Why it matters for brokers. Most standard property and casualty forms exclude nuclear risk. Contractors working at a plant need to know where their own program stops once fuel arrives on site.
New capacity is arriving to meet demand. In May, Markel and Willis launched a dedicated nuclear insurance facilitycovering property damage and business interruption from construction through operation. Restarts such as Palisades, and the planned revivals of Three Mile Island in Pennsylvania and Duane Arnold in Iowa, add a less familiar risk profile: old plants, rebuilt workforces and owners racing a calendar.
Read next: Marsh structures insurance for TerraPower nuclear project
Public money, private deadlines
Palisades first produced power in 1971 and shut down in May 2022. Holtec bought it as a decommissioning project, then pivoted to a restart. The Department of Energy's Loan Programs Office backed that plan with a loan guarantee of up to $1.52 billion in 2024. The plant's entire output is already sold under long-term contracts to rural co-ops Wolverine Power Cooperative and Hoosier Energy.
The schedule has already slipped more than once. Holtec first aimed for late 2025, then 2026, and its IPO prospectus still described the plant as on track to restart in 2026. Under its power purchase agreements, Palisades must return to service by March 1, 2027, according to a FERC filing. A Holtec spokesperson said in September that the plant remained on track for that date.
The bull case for nuclear still rests on electricity hunger from artificial intelligence. Some projections cited in IB's coverage of AI data centers stress-testing insurers' capacity put data centers at around 8% of US power demand by 2030. The Trump administration has made nuclear a pillar of that push, promising faster approvals and a less risk-averse regulator.
Critics say that combination is the problem. Allison Macfarlane, who chaired the NRC from 2012 to 2014, told the Financial Times that a novice operator under financial and political pressure was exactly the scenario in which staff need to feel safe speaking up.
Read next: Power insurers are pricing grid risk on yesterday's data
A whistleblower verdict and a tired workforce
The NRC's retaliation finding landed eight days before a courtroom loss on a related theme. On October 21, a New Jersey jury awarded former Holtec chief financial officer Kevin O'Rourke $2.1 million, finding the company fired him for objecting to statements in a draft investor document. Holtec says it will appeal, and notes the jury also found O'Rourke breached a confidentiality agreement. Its IPO filing had disclosed that he was seeking about $6 million and that Holtec expected him to lose.
The case has nothing to do with reactor safety. But for management liability underwriters, more than one retaliation suit from former executives, a regulator's chilled-workplace finding and a withdrawn IPO add up to a risk profile worth a closer look - retaliation allegations can fall under a policy's employment practices section rather than its D&O cover, with separate limits.
There is a workforce angle too. Among the documents the NRC reviewed were employee-filed condition reports from May 2026 on worker fatigue and shift coverage, alongside complaints about schedule pressure. Combined with last year's fall from the refueling bridge, that is the kind of detail workers' comp and contractor program underwriters will want to see addressed before restart.
Read next: Insureds sue Evanston and Markel over alleged refusal to indemnify settlement
What Holtec and the regulator say
Holtec says it is taking the findings seriously. "A strong safety-conscious work environment is fundamental to our culture," the company said in a statement. It has said its fuel recovery plan was backed by engineering reviews of structural integrity, heat and radiation protection.
The NRC, for its part, says the work-environment problem is confined to two departments, involves no rule violations and is not expected to delay the restart. The agency wants Holtec to reassure staff, bring in an independent evaluator and file a corrective action plan within 30 days, then carry it out under NRC oversight, according to its October 13 announcement.
Not everyone is reassured. Arnie Gundersen, a nuclear engineer who advises local opponents, called the NRC's sign-off on the retrieval plan ironic, given the regulator's own description of a visibly bowed fuel assembly, The National reported.
What it means for the market
For carriers and brokers, Palisades is an early stress test of the nuclear revival rather than a claims event. Nobody was seriously hurt, nothing was released and the NRC still expects a restart. But a fuel-handling error at the very moment risk shifts to the nuclear market, combined with a regulator flagging a culture of silence in quality control, is the kind of signal underwriters tend to remember at renewal.
The next milestones to watch are Holtec's evaluation plan, due to the NRC in mid-November, and a follow-up meeting the agency wants about two weeks later. Then come the removal of the damaged assembly, the NRC's explanation of why it tipped, and Holtec's appeal of the whistleblower verdict. Whether Palisades makes its March 1, 2027 deadline may say as much about the economics of nuclear restarts as any data-center contract.
Amanda Oglesby
