I. The Statute

Section 101 of the Atomic Energy Act of 1954, codified at 42 U.S.C. § 2131, states that it shall be unlawful for any person within the United States to manufacture, produce, transfer, acquire, possess, or use any utilization or production facility except under and in accordance with a license issued by the Commission. The Nuclear Regulatory Commission currently regulates ninety-four commercial nuclear reactors in the United States, sixty-three pressurized water reactors and thirty-one boiling water reactors, which together generate about 779 billion kilowatt-hours of electricity, or 18.6 percent of the gross electricity generated in the United States. Each of those reactors holds a license. Each was required to obtain one before construction. None may operate without one.

On April 13, 2023, the Commission approved limited-scope rulemaking that placed fusion energy systems under the byproduct material framework of 10 CFR Part 30, rather than under the traditional fission reactor licensing regime. The Commission's staff requirements memorandum directed the agency to develop guidance for fusion machines, noting that some fusion systems were already being licensed by Agreement States. The direction of the law is unambiguous: fusion machines are nuclear facilities, they are regulated, and they require authorization.

There is, however, a fusion machine that has never been licensed, never been inspected, and never been subject to an enforcement action. It is the largest fusion facility affecting the United States by a margin so large that comparisons to the licensed fleet lose the power to describe it. It is the sun.

II. The Machine

The sun is a G-type main-sequence star approximately 865,000 miles, or 1.4 million kilometers, in diameter. Its core temperature tops 27 million degrees Fahrenheit, roughly 15 million degrees Celsius, at pressures so intense that nuclear reactions take place continuously. The fuel cycle is the proton-proton chain: every second, the sun fuses about 600 million tons of hydrogen into helium. Of that, roughly 596 million tons emerge as helium. The remaining 4 million tons of matter do not emerge at all. They are converted directly into energy, pursuant to E=mc², at a total luminosity of 3.828×10²⁶ watts. That figure is not an estimate. It is the nominal solar luminosity adopted by the International Astronomical Union in 2015, exact by definition.

To place the number in the vocabulary of the regulator: the sun's output is equal to roughly 383 quadrillion one-gigawatt reactors. Against the NRC's entire licensed commercial fleet, all ninety-four reactors combined, the sun exceeds the total by roughly four quadrillion times. Vogtle, the largest nuclear power plant in the United States at roughly 4.5 gigawatts after Units 3 and 4 entered service, would need to be replicated approximately 85 quadrillion times to equal the sun's output. In about ninety minutes, the sunlight striking the top of Earth's atmosphere equals the energy humanity consumes in an entire year.

Every second, the sun destroys a mountain of itself. The NRC requires a license for the mountain.

The facility has been operating for approximately 4.6 billion years. It is expected to operate for about 5 billion more years before swelling into a red giant, engulfing the Earth, and settling into a small white dwarf. No construction permit was ever sought. No operating license was ever issued. The Atomic Energy Act was signed in 1954. The facility predates the Commission, the statute, the republic, and the planet's continents in roughly their present arrangement.

III. The Dose

Under 10 CFR § 20.1301, the dose limit for individual members of the public from licensed operations is 0.1 rem, or 1 millisievert, per year, exclusive of background radiation and certain medical exposures. The regulation exists because radiation in excess of background is understood to carry risk, and the Commission sets the line where it does.

The sun is the single largest source of radiation exposure to the American public. Its ultraviolet output is the principal environmental cause of skin cancer: the American Cancer Society states that most skin cancers result from exposure to ultraviolet rays in natural sunlight, and that both UVA and UVB rays damage skin and cause skin cancer. Airline flight crews, who spend their working lives closer to the source, receive an estimated 3 to 6 millisieverts of cosmic radiation per year, according to CDC estimates cited in research published in JAMA Internal Medicine in August 2026. That is three to six times the public dose limit the Commission imposes on its licensees. The Federal Aviation Administration has recognized aircrew as occupationally exposed since 1994, yet there are no mandatory federal radiation dose limits or monitoring requirements for American aircrew.

The facility maintains no ALARA program. It keeps no personnel dosimetry records. It conducts no effluent monitoring. Members of the public receive its output continuously, outdoors, without dosimeters, without training, and without a radiation work permit. The regulation's escape hatch, which must be stated plainly, is that the public dose limit is exclusive of background radiation, and the sun's output is, by any definition, background. The Commission has effectively classified the facility's entire discharge as a preexisting condition.

IV. The Emergency Plan

Under 10 CFR § 50.47, every licensed nuclear power plant must maintain emergency plans establishing a plume exposure pathway emergency planning zone of about ten miles and an ingestion pathway emergency planning zone of about fifty miles. The zones exist because the Commission assumes that a serious incident at a nuclear facility can affect the public beyond the site boundary, and it requires the operator to plan accordingly.

The sun has filed no emergency plan. Its incident history is nonetheless the most severe of any nuclear facility known to science. In September 1859, the Carrington Event, a geomagnetic storm of a magnitude not seen since, burned down several telegraph stations, delivered electric shocks to operators, and produced auroras visible in Cuba and Hawaii. Operators in some locations disconnected their batteries and transmitted on current induced by the storm alone. A National Academy of Sciences study estimated that a comparable storm today could cost the United States economy more than $1 trillion. A Lloyd's of London assessment put the range at $0.6 to $2.6 trillion, with twenty to forty million people without power for sixteen days to two years.

In July 2012, NASA's STEREO-A spacecraft witnessed a coronal mass ejection comparable in magnitude to the Carrington Event. It missed the Earth. Had it struck, the outcome would have resembled 1859 with a modern grid underneath it. On May 10 through 12, 2024, the Gannon geomagnetic storm, the first G5-class storm in more than twenty years, reached a Kp index of 9 and a Dst index of negative 412 nanoteslas, producing auroras visible far from the poles and measurable effects on satellites and power systems. No licensee event report was filed for any of these occurrences. No abnormal occurrence report was transmitted to the Commission. The facility does not appear to have a corrective action program.

The sun has operated for 4.6 billion years without a construction permit. The Commission has not noticed.

V. The Decommissioning

Under 10 CFR § 50.75, every power reactor licensee must provide reasonable assurance that funds will be available to decommission the facility, must adjust the estimate annually, and must maintain the financial instrument or instruments that guarantee the money. The rule exists because the Commission understands that every nuclear facility eventually shuts down, and that shutdown is expensive.

The sun's decommissioning plan is the most expensive in the history of nuclear regulation. In approximately 5 billion years, having burned through the hydrogen in its core, the facility will swell into a red giant, engulf the Earth, and eventually die off into a small white dwarf. The decommissioning will permanently alter every licensed site, every emergency planning zone, and every member of the public the Commission is charged with protecting. No decommissioning cost estimate has been filed. No trust fund has been established. No post-shutdown decommissioning activities report has been docketed. The facility's eventual shutdown is the one decommissioning event that will, with certainty, require the decommissioning of everything else, and it is the one for which no financial assurance exists.

VI. The Inspection

Since the late 1970s, the NRC has stationed resident inspectors at every nuclear power plant in the country. Each plant has at least two. There are approximately 150 resident inspectors agency-wide. They observe plant activities on a daily basis, verify that the licensee meets regulatory requirements, and serve as the Commission's eyes and ears at the site. The resident inspector program exists because the Commission does not trust any nuclear facility to operate unwatched.

No resident inspector has ever been assigned to the sun. There is no inspection schedule, no inspection report, no notice of violation, no confirmatory action letter. There are no control room logs, because there is no control room. There is no operator, licensed or otherwise, at the controls. The facility runs itself, continuously, at 3.828×10²⁶ watts, and the Commission's eyes and ears are pointed at ninety-four facilities whose combined output the sun exceeds by a factor of four quadrillion.

Two resident inspectors watch each licensed plant. Zero watch the sun.

VII. The Penalty

Section 234 of the Atomic Energy Act authorizes the Commission to impose civil penalties for violations of its requirements. The maximum penalty, adjusted for inflation, stands at $372,240 per violation per day. The Commission's fiscal year 2025 rule set that figure, and the fiscal year 2026 inflation adjustment was canceled, leaving the maximum in place as of the Commission's May 2026 notice.

Applied to the sun, the arithmetic is straightforward. Each day of unlicensed operation accrues a theoretical maximum penalty of $372,240. Each year accrues roughly $136 million. The facility has been operating without a license for approximately 4.6 billion years, yielding a theoretical cumulative exposure of roughly $625 quadrillion. Collection, admittedly, presents difficulties. The facility has no assets in the United States, no registered agent, and no bank account from which a penalty could be drawn. The Commission's enforcement manual does not address service of process on a star.

The Price-Anderson Act requires licensed operators to carry primary nuclear liability insurance of $450 million per site, backed by retrospective premiums of up to approximately $131 million per reactor, for total public liability coverage of roughly $12.9 billion across the industry. The sun carries no Price-Anderson coverage. It carries no insurance of any kind. In the event of a Carrington-class occurrence, the retrospective premium pool of the entire American nuclear industry would cover approximately two thousandths of one percent of the low end of the estimated damage.

VIII. The Disclosures

Intellectual honesty requires that the jurisdictional defenses be stated before the conclusion, as they are the whole of the matter.

First, 42 U.S.C. § 2131 makes it unlawful for "any person within the United States" to operate a utilization or production facility without a license. The sun is not a person. It is a star. Nor is it within the United States. It is approximately 93 million miles from the United States, a distance at which the Commission's jurisdiction has never been asserted and could not plausibly be asserted. The statute's operative phrase describes persons. The facility is not one.

Second, the Commission's April 2023 fusion decision addressed fusion machines: devices designed, constructed, and operated by persons, some of which were already being licensed by Agreement States. The rulemaking contemplated applicants, dockets, and license conditions. It did not contemplate stars. No application has ever been docketed for the sun, and the Commission has never asserted that its fusion framework extends to celestial bodies.

Third, the public dose limit that the sun so dramatically exceeds is, by its own terms, exclusive of background radiation. The sun's output is background. The regulation was written for licensees, and the sun is not a licensee. Every enforcement theory in this article fails at the threshold question of who the law governs, and the answer is not the sun.

IX. The Conclusion

And yet the facts remain. The largest fusion facility affecting the United States operates without a license, without an emergency plan, without resident inspectors, without decommissioning assurance, and without insurance, at an output of 3.828×10²⁶ watts, roughly 383 quadrillion times the capacity of a one-gigawatt reactor. It has injured telegraph operators, threatened the power grid, dosed the public beyond the Commission's own limits, and scheduled the eventual decommissioning of the planet. The statute says what it says. The Commission should docket the application, assign two resident inspectors, establish the emergency planning zones, require the decommissioning trust, and assess the penalty at $372,240 per day, beginning 4.6 billion years ago.

Ergo.

Sources

  1. Atomic Energy Act § 101, 42 U.S.C. § 2131. govregs.com/uscode/42/2131
  2. U.S. Nuclear Regulatory Commission, "Power Reactors" (94 reactors: 63 PWR, 31 BWR; updated Sept. 30, 2025). nrc.gov/reactors/power
  3. NRC, NUREG-1350 Vol. 35, Information Digest 2025-2026 (779 billion kWh; 18.6% of U.S. gross electricity). nrc.gov/docs/ML2505/ML25051A118.pdf
  4. NRC, "Fusion Machines" (SRM-SECY-23-0001, Apr. 13, 2023; 10 CFR Part 30 framework). nrc.gov/materials/fusion-machine
  5. Mondaq, "Fusion Update: Proposed Federal Streamlining Rules Are on the Way" (Mar. 11, 2026). mondaq.com
  6. LibreTexts, "Our Sun: A Giant Nuclear Power Plant" (600 million tons H/sec; 4 million tons to energy). chem.libretexts.org
  7. Solar luminosity, 3.828×10²⁶ W (IAU 2015 nominal). en.wikipedia.org/wiki/Solar_luminosity
  8. NASA Science, "Sun: Facts" (865,000-mile diameter; 15 million °C core). science.nasa.gov/sun/facts
  9. NASA Goddard, "Some Interesting Facts about the Sun" (4.5 billion years old; 5 billion more years; red giant; white dwarf). pwg.gsfc.nasa.gov/istp/outreach/workshop/thompson/facts.html
  10. ScienceBlog, "Every Second the Sun Destroys a Mountain of Itself" (90 minutes of sunlight equals humanity's annual energy use). scienceblog.com
  11. 10 CFR § 20.1301, dose limits for individual members of the public (1 mSv/year, exclusive of background). law.cornell.edu/cfr/text/10/20.1301
  12. American Cancer Society, "Does UV Radiation Cause Cancer?" (most skin cancers result from UV in natural sunlight). cancer.org
  13. MedicalXpress, "Flying May Carry Greater Cancer Death Risk" (Aug. 2026; CDC estimate 3–6 mSv/year for aircrew; no mandatory federal dose limits). medicalxpress.com
  14. 10 CFR § 50.47, emergency planning (10-mile plume EPZ; 50-mile ingestion EPZ). nrc.gov
  15. Scientific American, "Bracing for a Solar Superstorm" (1859 Carrington Event; telegraph stations burned). scientificamerican.com
  16. Space Daily, "In 1859, a Solar Storm Would've Blacked Out the Modern World" (auroras in Cuba and Hawaii; operators transmitted on storm current). spacedaily.com
  17. USGS, "Weathering a Perfect Storm: Space" (National Academy estimate: more than $1 trillion). usgs.gov
  18. AIP FYI, "Federal Government Preparing for Impacts of Space Weather" (Lloyd's $0.6–2.6 trillion; July 2012 STEREO-A near-miss). aip.org/fyi
  19. NASA Science, "What NASA Is Learning from the Biggest Geomagnetic Storm in 20 Years" (Gannon storm, May 10–12, 2024; Kp 9; Dst −412 nT). science.nasa.gov
  20. 10 CFR § 50.75, decommissioning funding assurance. ecfr.gov
  21. NRC, "Resident Inspectors" backgrounder (at least two per plant; ~150 agency-wide; program since late 1970s). nrc.gov
  22. NRC, "Civil Monetary Penalties" FY2025 rule ($372,240 per violation per day). nrc.gov/docs/ML2432/ML24320A132.pdf
  23. Federal Register, NRC FY2026 inflation adjustment cancellation (May 2026). public-inspection.federalregister.gov/2026-10869.pdf
  24. NRC, "Price-Anderson Act" 2021 report ($450M primary; $131.1M retrospective per reactor; ~$12.9B total). nrc.gov/docs/ML2127/ML21278A324.pdf