A nuclear plant that shut down for good four years ago is now closer than any decommissioned commercial reactor in American history has ever gotten to generating electricity again. Workers have begun loading nuclear fuel into the reactor vessel at the Palisades plant on Lake Michigan, a milestone that pushes a project once considered a one-way closure toward becoming the first reversal of its kind the U.S. nuclear industry has ever attempted.
From Permanent Shutdown to Fuel in the Reactor
Palisades stopped generating power in 2022 after more than five decades of operation, a closure that, under normal circumstances, would have been the plant’s final chapter; decommissioned reactors in the United States have never previously been returned to service. Holtec International, which bought the site to dismantle it, changed course and began pursuing a restart instead, a plan that, according to reporting on the project, reached a new stage on September 1, 2026, when the company began loading fuel assemblies into the reactor core, a mix of fresh fuel and partially used assemblies left over from the plant’s final operating cycles before it closed. That step places the reactor in what regulators classify as Mode 6, a required stage on the technical path toward resuming commercial operation.
The Setbacks That Pushed the Timeline Back Repeatedly
The restart has not moved in a straight line. Holtec originally targeted the end of 2025 for Palisades to resume generating power, a date that slipped after the project ran into maintenance problems, including cracked steam generator tubes, that had to be addressed before fuel could safely go into the reactor. Those delays are part of why the fuel-loading milestone carries weight beyond its technical description: reaching this stage means the specific problems that had been holding the project back have been resolved enough for federal regulators to allow the next phase to proceed.
Why No Reactor Has Ever Come Back From Decommissioning
Once a nuclear plant enters decommissioning, the process is built around irreversibility: fuel is typically removed and placed into storage, systems are drained and disassembled, and the site’s operating license is progressively narrowed until generating electricity again would require rebuilding much of what was intentionally taken apart. Palisades is the test case for whether that assumption actually holds, since Holtec halted full decommissioning early enough, and retained enough of the plant’s original equipment, to make a return to service technically feasible rather than requiring a new reactor built from scratch. If completed, the restart would demonstrate a path other recently shuttered plants might follow, provided their equipment was not stripped as far down the decommissioning process.
What Comes After Fuel Loading Finishes
Loading fuel is not the same as restarting the reactor. After the core is fully loaded, the plant faces a sequence of inspections, system tests and regulatory sign-offs before Holtec can bring the reactor to criticality and begin actually generating electricity again, with the company’s current public target pointing to early next year rather than an immediate restart. The stakes extend beyond Michigan: Palisades is expected to supply more than 800 megawatts of carbon-free power once it is back online, at a moment when demand for reliable electricity, driven in part by data centers and industrial growth around the Great Lakes, has renewed political and utility interest in keeping existing nuclear capacity on the grid rather than retiring it.
Financing a Restart Nobody Had Attempted Before
Because no other utility or company had ever tried to bring a decommissioned commercial reactor back online, Holtec could not point to a prior restart’s budget or timeline when it sought financing for the project, making the effort as much a financial experiment as a technical one. The company secured a substantial federal loan to help fund the work, a level of government backing that reflects how much weight policymakers are placing on Palisades succeeding as a template rather than a one-off curiosity. Lenders and regulators alike have treated every stage of the restart, from the steam generator repairs to this month’s fuel loading, as a test of whether the assumptions built into standard decommissioning rules actually hold once a company commits to reversing course partway through.
Why Other Shuttered Plants Are Watching Closely
Several other recently retired nuclear plants around the country still have equipment intact enough that a Palisades-style reversal could theoretically be considered, and utility executives elsewhere have said openly that a successful restart would change how they think about retiring reactors early rather than mothballing them. A failed or indefinitely delayed restart, by contrast, would likely reinforce the industry’s existing assumption that decommissioning is a one-way door, discouraging other companies from attempting anything similar even if their own equipment remained in reasonably good condition. That is part of why each milestone at Palisades, including this month’s fuel loading, draws attention well beyond the utility customers in Michigan who will eventually receive its power.
This article was produced with AI assistance and edited by Morning Overview staff.
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