US regulators issue warning to Holtec International over safety concerns at Michigan nuclear plant
Regulators have intervened after staff reported a "chilled work environment" that has led employees to hesitate speaking up about potential safety issues.

US regulators have issued a warning to Holtec International, the company behind a high-profile effort to revive a nuclear project at the Palisades power plant in Michigan. The move follows several incidents that have raised concerns about safety and employee well-being on site.
According to reports from US Nuclear Regulatory Commission inspectors, staff at the facility have been hesitant to speak up about potential safety issues due to a perceived "chilled work environment". This has led regulators to intervene, urging Holtec to address the issue and ensure employees feel safe reporting concerns without fear of retaliation.
The warning comes as part of an ongoing inspection process initiated by the NRC after last year's incident in which a contractor fell into the reactor cavity while working on site. The individual was sent off-site for medical treatment and decontaminated after ingesting some water, with 300 counts per minute detected in their hair.
Recent events have added to concerns about safety at the facility. In August, a bundle of nuclear fuel rods nearly tipped over during refueling operations, causing delays in an effort that was intended to be a milestone for the US nuclear industry's revival efforts.
The incidents and warning from regulators have sparked debate among critics who argue that financial and political pressures to ramp up nuclear power production are taking precedence over safety considerations.
The problems plaguing the Palisades nuclear plant have raised concerns about the safety of other reactors in operation. The Nuclear Regulatory Commission (NRC) recently revealed that nine out of 15 reactor operators failed to pass an initial license examination administered in July and August.
Only six individuals were granted operator licenses following this examination, sparking questions about the competence of those overseeing these complex facilities. This is particularly concerning given the high stakes involved in nuclear power production.
The Palisades plant has been touted as a symbol of the US nuclear resurgence, with its owner Holtec securing significant government support for the project. Approximately $2.2 billion in funding has been allocated to this endeavor, despite the company's lack of experience in operating a nuclear facility.
Recent announcements by other nuclear plant owners suggest that they too are looking to restart operations, despite the Palisades plant's ongoing issues. This includes Three Mile Island in Pennsylvania and Duane Arnold in Iowa, which have both announced plans to begin generating electricity again soon.
The NRC has faced criticism for its role in facilitating the rapid expansion of nuclear power production, with some arguing that safety concerns are being overlooked in favor of meeting government targets. The value of several major US-listed nuclear energy companies has dropped significantly in recent months, further fueling these concerns.
Palisades nuclear power plant's woes continue as it struggles to meet its revival goals.
The loan granted to Palisades in 2024 by the Department of Energy is substantial, amounting to $1.5 billion. This funding was provided with the aim of financing the restoration and revitalization of the facility. The plant's decommissioning in 2022 had raised concerns about its potential for future use.
Allison Macfarlane, a former NRC chair, has expressed her reservations regarding Holtec's efforts to restart Palisades. According to her, Holtec may be under significant financial and political pressure to expedite the process.
Holtec's March 2027 deadline to commence power generation is drawing near, with customers having secured an additional $1.3 billion in government funding to purchase electricity from the plant. This influx of funds underscores the significance of Palisades' revival for the energy sector.
In response to concerns raised by the NRC, Holtec has stated that it takes these issues seriously and is taking steps to rectify them. The company also highlighted its technical expertise, citing a recent incident where a fuel assembly was recovered without spilling as an example of its ingenuity.
The US Nuclear Regulatory Commission (NRC) has issued a stern warning to Holtec International regarding its workplace culture issues. The NRC has instructed the company to address these concerns promptly to prevent further decline in the affected departments.
Holtec has been asked to present a plan to correct the problems, which will be reviewed by the NRC within 30 days. Despite this, the NRC downplayed any immediate risk to public safety, stating that existing mitigating measures have ensured plant safety is not compromised.
Facts based on reporting originally published by Ars Technica.
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