VALAR WATCH
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374 facts · 512 sources · updated 2026-09-30

Explainers

Plain-language explanations of the terms in this research: TRISO fuel, enrichment, criticality, kWt, DOE authorization, NEPA, mining claims, records requests.

TRISO fuel: the coated fuel particle, the compact and the fuel block · Uranium enrichment: natural, LEU, HALEU, weapons-grade, and why 4.95% vs 19.9% matters · Where HALEU comes from: DOE's HALEU Availability Program · Criticality ('going critical') · Zero-power ('cold') criticality vs power operation · kWt vs kWe: heat vs electricity (and 100 kWt in household terms) · HTGR: the high-temperature gas-cooled reactor, and why helium · Graphite moderator (and reflector) · Decay heat, and 'walk-away' passive cooling · Spent (used) nuclear fuel · Radioactive waste: low-level, high-level and 'greater than Class C', and Utah's rules · Radiation dose units: sieverts, millisieverts (mSv), rem and millirem · What a CT scan is, and why 'it's like a CT scan' comparisons can mislead · DOE authorization vs NRC license: who checks what, and what the public gets to see · Executive Order 14301 and DOE's Reactor Pilot Program · NEPA environmental review: categorical exclusion vs environmental assessment vs environmental impact statement · Documented Safety Analysis (PDSA and DSA), Technical Safety Requirements and DOE's Safety Evaluation Report · Nuclear Safety Design Agreement (NSDA) · Worst-case accident analysis ('Maximum Hypothetical Accident') and the site boundary · Emergency planning zones (EPZ) · 'Functional containment': relying on the fuel instead of a containment building · Burnup, megawatt-days and 'effective full-power days' · Price-Anderson Act: who pays if there is a nuclear accident · Other Transaction Agreement (OTA) · Nuclear quality assurance: NQA-1 vs the research-reactor standard ANS-15.8 · Occurrence reporting: how problems at DOE nuclear facilities are reported · Mining claims: lode vs placer, and what can be claimed · How staking and location notices work in Utah · What an unpatented mining claim does and does not allow · Utah's Open and Public Meetings Act · GRAMA: Utah's public records law · What a records request is, and how to file one (FOIA and GRAMA) · County conditional use permit (CUP) · Utah trust lands, special use leases and 'other business arrangements' · Thermoelectric generator: making electricity straight from heat · The sulfur-iodine cycle: making hydrogen with very high heat · BLM rights-of-way and land-use applications · SEC Form D: the notice of a private fundraising

TRISO fuel: the coated fuel particle, the compact and the fuel block

TRISO fuel is not a solid rod of uranium but thousands upon thousands of coated beads, each about a millimetre across (DOE compares one to a poppy seed). Each bead has a tiny kernel of uranium fuel in the middle (for Ward 250, uranium oxycarbide) wrapped in four thin coatings made of three materials: a soft porous carbon layer that soaks up damage from splitting atoms, then dense carbon, a hard silicon carbide ceramic shell, and dense carbon again. The coatings are the first and main barrier that keeps the radioactive by-products of fission inside, which is why DOE says each particle acts as its own containment. Thousands of beads are pressed with graphite into small cylinders called compacts (for Ward 250, about half an inch wide and two inches tall), or into billiard-ball-sized pebbles for other designs; DOE's shipping review describes Ward 250's compacts packed 170 at a time into graphite fuel blocks. The coating does not change what is inside: the kernel can hold ordinary low-enriched uranium or richer HALEU, and after use each bead is full of intensely radioactive fission products. TRISO survives far higher temperatures than ordinary fuel (DOE: more than 300 hours at up to 1,800°C with little or no damage), but 'cannot melt' does not mean nothing can escape: Valar's own worst-case analysis assumes some beads fail.

Think of it like thisLike a candy with a hard shell the size of a poppy seed: the shells keep the center in, but they do not change what the center is made of.

Why it matters here: The problem with Valar's TRISO fuel claims is about what is inside the beads, not the coating. Valar's only public safety paper (the NSDA, October 2025) lists Ward 250's TRISO fuel as 4.95% U-235, ordinary low-enriched uranium. Valar's own joint release with Los Alamos (November 2025) calls the same fuel HALEU, and DOE's shipping review of 20 May 2026 cleared blocks of TRISO compacts for Ward 250 with uranium 'enriched to a maximum of 19.9 wt.% U-235', about four times richer (disc-001; orig-040, orig-009, safe-010). The review covers 24 blocks, about a third of the 76 fuel elements the paper describes (safe-011, disc-004). The paper calls its fuel assumptions preliminary and says they would be updated in a later safety analysis; that analysis is not public, and every public copy of the paper still reads 4.95% (dir-009, orig-034). Separately, the state lab's claim that the design cannot melt holds in the sense DOE uses, but Valar's worst case assumes some beads crack and release gases, and an independent science group calls TRISO 'far from meltdown-proof' (disc-015, safe-025). Valar's claim of 'unmatched' safety and proliferation resistance sits beside the HALEU fuel DOE cleared (disc-016), and Valar plans to make TRISO fuel itself (orig-038, safe-031, disc-017, csite-007).

related facts: orig-004, orig-009, orig-034, orig-040, orig-008, safe-010, safe-011, safe-025, dir-009, orig-038, safe-031, csite-007, plan-014
Uranium enrichment: natural, LEU, HALEU, weapons-grade, and why 4.95% vs 19.9% matters

Natural uranium is only about 0.7% U-235, the kind of uranium atom that splits easily in a reactor; the rest is almost all U-238. Enriching raises the U-235 share: today's U.S. power plants use fuel enriched up to 5%, HALEU (high-assay low-enriched uranium) is 5% to just under 20%, and uranium at 20% or more is 'highly enriched uranium' (HEU); everything below 20%, HALEU included, still counts as low-enriched. Weapons-grade uranium is usually about 90% U-235. The 20% line matters because it divides uranium considered impractical for direct use in a weapon from uranium classed as weapon-usable, even though actual bombs use far richer material. HALEU stays below that line but is richer than ordinary fuel, so the Union of Concerned Scientists says it is more attractive for weapons development and needs more stringent security than ordinary reactor fuel, though far less of a risk than plutonium. The grade also changes the reactor physics: richer fuel packs more splitting atoms into less space, so a safety analysis has to be done for the fuel actually loaded.

Think of it like thisLike the proof of a drink: the same liquid graded by how much of the strong part is in it, and the grade decides which rules apply.

Why it matters here: Valar's public safety paper lists Ward 250's fuel at 4.95% U-235, just under the 5% line for ordinary fuel, while the fuel DOE cleared for Ward 250 is HALEU at up to 19.9%, about four times as rich and just under the 20% line (disc-001; orig-040, orig-034, safe-010). HALEU is scarce and DOE hands it out through an allocation program in whose announced rounds Valar does not appear (exp-003; disc-018, gov-008). Valar's Carbon County plans, as the state lease memo describes them, have enriched uranium feedstock (HALEU or lower grades) shipped in and made into TRISO fuel on site (csite-007, mine-038). Valar's home page claims 'proliferation resistance' when its design is paired with TRISO fuel; the independent view on HALEU points both ways (disc-016, safe-025).

related facts: orig-040, orig-034, orig-008, safe-010, safe-011, dir-009, csite-007, mine-038, gov-008, safe-025
Where HALEU comes from: DOE's HALEU Availability Program

HALEU is not yet available from U.S. commercial suppliers at scale; DOE says most advanced reactor designs need it and that gaps in supply could delay them. The Energy Act of 2020 told DOE to set up a HALEU Availability Program, which buys HALEU from domestic companies and makes limited amounts from DOE-owned material, such as highly enriched uranium recovered from old government research-reactor fuel and blended down below 20%. DOE announces which companies receive conditional commitments of this material in rounds. Because HALEU is scarce and security-sensitive, who supplied a reactor's HALEU, who owns it and on what terms are basic public-interest questions.

Why it matters here: Ward 250's fuel is HALEU that DOE cleared to ship from its criticality research center in Nevada (safe-010, plan-014, safe-012), yet Valar is not among the recipients named in DOE's three announced HALEU rounds (gov-008, disc-018). DOE's fuel-line pilot makes each company responsible for its own nuclear feedstock and says companies may apply for HALEU through DOE's program (orig-032). No public record says who fabricated Ward 250's fuel, who owns the uranium, or on what terms Valar received it; a FOIA request to DOE for the fuel transfer or loan agreement would settle it.

related facts: safe-010, plan-014, safe-012, gov-008, orig-032, mine-038
Criticality ('going critical')

When a uranium atom splits it releases a few neutrons, and those can split more atoms: a chain reaction. A reactor is 'critical' when, on average, exactly one neutron from each split goes on to cause another split, so the chain reaction sustains itself without growing or shrinking. With fewer it dies away (subcritical); with more it grows (supercritical), and operators steer between the two with control rods, pushed in to slow the reaction or pulled out to speed it up. Despite the word, 'critical' is the normal, intended state of a running reactor, not an emergency. Criticality by itself says nothing about power: a reactor can be exactly critical at almost zero power, with the fuel barely warm, or at full power.

Think of it like thisLike a car holding a steady speed: 'critical' only means the speed is not changing, whether the car is creeping along or on the highway.

Why it matters here: Every Valar milestone is stated in these terms. Its NOVA core reached 'zero-power criticality' in November 2025 on a Los Alamos machine in Nevada, run by Los Alamos staff (orig-008, orig-047). Ward 250 first went critical on 18 June 2026, which DOE described as a zero-power test (orig-010, plan-005); that met the executive order's July 4 goal (disc-044). Valar's claim to be the first company ever to take a reactor critical outside a national lab does not hold as worded: General Atomics did so in 1958 (disc-036, ppl-030).

related facts: orig-008, orig-047, orig-010, plan-005, ppl-030, orig-006, gov-006
Zero-power ('cold') criticality vs power operation

A zero-power test brings the core just to criticality at a tiny power level: the chain reaction sustains itself, but the fuel does not reach operating temperature and no heat is carried away to do work. It checks the nuclear physics: that the fuel, the moderator and the control rods behave as the computer models predicted. Power operation is the next and harder step: raising power in stages with hold points, running hot for long periods and removing the heat with the coolant, which tests the fuel, the materials, the cooling system and the safety systems. Valar's own NOVA release puts it plainly: 'Cold proves the physics. Hot proves the power.'

Think of it like thisLike starting a new engine in the driveway versus driving it loaded up a mountain: the first shows it runs; only the second shows what it can do under load.

Why it matters here: DOE and Valar describe Ward 250's 18 June 2026 milestone as a zero-power test (orig-010). The state lab's web page calls it full-power criticality, which is wrong, and the state Trust Lands memo repeats a 21 June full-power date that no DOE record confirms (disc-024; orig-012, mine-016, plan-009). Valar says it reached full power days later and made electricity on 1 July (orig-013, plan-006); the only power data it has published is one chart with no units or time axis (plan-007, disc-052). A former DOE nuclear chief's view that a zero-power result proves little about a working reactor is recorded at orig-026. Criticality is a real milestone, one DOE says must be achieved before a reactor can generate power; it neither settles nor undermines the separate questions about Ward 250's safety documents (safe-007).

related facts: orig-010, orig-012, mine-016, plan-009, orig-013, plan-006, plan-007, orig-026, orig-035
kWt vs kWe: heat vs electricity (and 100 kWt in household terms)

A kilowatt (kW) is a rate of energy, 1,000 watts; a kilowatt-hour is one kilowatt kept up for an hour, the unit on a power bill. Reactors are usually rated by the heat they make, in kWt or MWt ('thermal'); electricity is rated in kWe or MWe, and a typical U.S. steam power plant turns only about a third of its heat into electricity. Valar's safety paper limits Ward 250 to 100 kWt of heat, with brief tests allowed at up to 250 kWt. If 100 kWt were turned into electricity at a typical one-third it would be about 33 kW; an average U.S. home bought 10,791 kWh of electricity in 2022, an average draw of about 1.2 kW, so 33 kW is roughly the average use of 25 to 30 homes. For scale, a large U.S. power reactor makes around 3,000 MWt of heat, some 30,000 times Ward 250's 100 kWt, and '5 MW' is 50 times 100 kW.

Think of it like thisLike a car's fuel versus the power that reaches the wheels: most of the energy leaves as heat, and only part becomes useful work.

Why it matters here: Ward 250's size is described inconsistently: 100 kWt continuous in the safety paper; 250 kWt for one hour per run in that paper, and up to one day (possibly a total) on an unfinished Valar page; '5 MW' in airlift coverage (disc-006; safe-008, orig-035, orig-031, orig-011). Some local press described the 100 kW heat limit as 100 kilowatts of electricity (disc-025). At the 1 July 2026 demonstration the reactor was reported at 37% power feeding a thermoelectric converter (plan-010; exp-035); at the 5-8% efficiency typical of such devices, about 37 kW of heat would give roughly 2 to 3 kW of electricity. That is our arithmetic, not a measurement: Valar has published no measured output (disc-025, orig-013, orig-042).

related facts: safe-008, orig-035, orig-031, orig-011, plan-010, orig-013, orig-042, orig-034
HTGR: the high-temperature gas-cooled reactor, and why helium

An HTGR uses TRISO fuel set in graphite and is cooled by helium gas instead of water; the gas carries heat out of the core to make electricity or industrial heat. Helium is inert: it does not burn or react chemically with the hot graphite and metal, it stays a gas, and it does not itself become radioactive in the reactor. That lets HTGRs run far hotter than water-cooled plants, roughly 700-950°C in designs built so far (the Union of Concerned Scientists gives up to 800°C) against about 300°C for ordinary plants. The approach is not new: the U.S. ran Peach Bottom 1 (1966-74) and Fort St. Vrain (1979-89), Britain, Germany and Japan built experimental HTGRs, and China now runs a commercial pair (HTR-PM). Independent reviewers also list weak points: HTGRs are vulnerable to accidents in which air or water leaks into the hot core, and Fort St. Vrain was beset by some problems before it closed.

Why it matters here: Ward 250 is a small HTGR (orig-004, orig-009, csite-020). Its safety paper sets a 650°C outlet limit while also listing 750°C 'under normal operations' as a goal, and Valar's public statements about operating temperature range from above 750°C to over 950°C (disc-002; orig-023, orig-034). High temperature is also what Valar's hydrogen claims would need (exp-036, disc-037). Valar's 'Ward' design lineage borrows from past U.S. and German HTGR and fuel programs (orig-039).

related facts: orig-004, orig-009, orig-023, orig-034, orig-039, csite-020
Graphite moderator (and reflector)

Neutrons from splitting uranium fly out very fast, and slow neutrons are far better at splitting the next U-235 atom, so most reactors use a 'moderator' to slow them down. Ordinary power plants use water; HTGRs like Ward 250 use graphite, a very pure form of carbon, both as the moderator and as a 'reflector' that bounces escaping neutrons back into the core. The large mass of graphite also soaks up heat, so core temperatures change slowly in an upset. Very hot graphite can burn if air reaches it, and HTGRs are vulnerable to accidents in which air or water leaks into the core, so designs must guard against both. Chernobyl was also graphite-moderated, but it was water-cooled and had a design flaw that made power surge; its graphite burned only after an explosion broke the core open to the air.

Think of it like thisLike the felt and cushions of a pool table: the felt slows the balls down so they can drop into pockets, and the cushions bounce stray balls back into play.

Why it matters here: Valar's Castle Country page says graphite 'helps manage heat within the core'; its safety paper and DOE's review describe graphite as the moderator and reflector, with its heat-absorbing mass as a safety feature (orig-004, orig-009). At a July 2025 town hall, Valar's CEO answered a Chernobyl worry by comparing coal deaths (ppl-025); the technical differences that matter are that Ward 250 is helium-cooled and that its safety paper and DOE's review credit a negative temperature feedback, the opposite of Chernobyl's power-surging flaw (the paper gives no value for that feedback, so its size cannot be checked). Air or water getting into the hot core remains the known weak point for this reactor type (safe-025).

related facts: orig-004, orig-009, ppl-025, safe-025, orig-039
Decay heat, and 'walk-away' passive cooling

Shutting a reactor down stops the chain reaction within seconds, but the fuel keeps making heat because the radioactive fragments left by fission keep decaying. For a reactor that has run steadily for a long time, DOE's reactor-theory handbook puts decay heat at about 5-6% of its former power just after shutdown, falling below 1% within about an hour, then fading over days and years. If nothing carries that heat away, the fuel can overheat within hours or days, depending on the design. 'Passive' or 'walk-away' cooling means the heat leaves by itself, through natural air flow, conduction and radiation to the surroundings, with no pumps, no electricity and no operator action. Small, low-power reactors make little decay heat, and TRISO fuel and graphite tolerate very high temperatures, so for this kind of design the risk from lost cooling is fuel-particle damage rather than a molten core; how much margin there is depends on the heat analysis.

Think of it like thisLike the embers after a fire is put out: no flames, but they keep glowing and giving off heat for hours, less and less as time passes.

Why it matters here: Valar's safety paper sets a target of no operator action for 72 hours, with natural circulation within 30 minutes (safe-020). DOE's environmental review goes further and says the passive system keeps fuel within limits 'indefinitely' (csite-020); a design can beat its minimum target, so the two do not conflict, but the heat analysis behind 'indefinitely' is not public (disc-011). Valar says it proved passive cooling on 26 June 2026 by shutting down and cutting all active cooling and power (orig-013); no DOE or independent record of that test, or of the power history before it, has been published. For scale: at Ward 250's 100 kW limit, decay heat would be about 5-6 kW at shutdown and under 1 kW an hour later, less after a short run (our arithmetic from DOE's percentages).

related facts: safe-020, csite-020, orig-013, plan-006, csite-009
Spent (used) nuclear fuel

Spent fuel is fuel that has been used in a reactor and taken out; federal law defines it as irradiated fuel that has not been reprocessed. Fresh low-enriched fuel is only mildly radioactive and can be handled with gloves, but after use it is packed with fission products and becomes intensely radioactive and hot, which is why it is kept under water or inside thick steel-and-concrete casks and never handled directly. Its radioactivity falls with time but stays hazardous for thousands of years: for ordinary power-plant fuel, a typical assembly still gives off more than 10,000 rem an hour at its surface ten years after removal, while about 500 rem at once is fatal. The United States has no permanent disposal site, so used fuel stays where it was made or goes to storage. The Union of Concerned Scientists says HTGRs using TRISO fuel produce a much larger volume of highly radioactive waste than ordinary plants, though TRISO spent fuel may be harder for a would-be bomb-maker to reprocess.

Why it matters here: Valar's April 2025 NRC-lawsuit post says holding the spent fuel of its planned small reactor for five minutes would equal a CAT scan; engineers using Valar's own posted numbers found a fatal dose in about 90 seconds, or far less by a more detailed method, as two outlets reported (the engineers' own posts and full inputs, such as distance and cooling time, are not archived here; the worked check on the Proofs page, pf-007, gives about 75 to 334 mSv whole-body for all the spent fuel held 50 cm away a day after shutdown, and less than a CT scan for one pebble, on partly assumed inputs; the two rest on different assumptions), and the sentence is still on Valar's site (exp-013; disc-014, orig-017, safe-026, orig-061). For Ward 250, DOE's review says one core of spent fuel goes into dry casks for transport to an unnamed 'DOE-approved facility' (safe-023, disc-033). Utah bars placing high-level waste in the state without the governor's and Legislature's approval, but a 2026 law exempts interim storage from a DOE-authorized test reactor at a state-owned facility if the state permits and licenses it (exp-011; gov-017, csite-023). The Carbon lease bars waste storage on land under the lease but lets Valar buy land for spent-fuel storage (disc-032, csite-008), and the state-DOE campus pact contemplates out-of-state spent fuel (gov-030).

related facts: orig-017, safe-026, orig-061, safe-023, gov-017, csite-023, csite-008, gov-030
Radioactive waste: low-level, high-level and 'greater than Class C', and Utah's rules

Low-level waste is things like used filters, rags, tools and protective clothing with small amounts of mostly short-lived radioactivity; in the U.S. it is sorted into Classes A, B and C, with 'Greater Than Class C' for the most radioactive. High-level waste is the intensely radioactive, heat-producing material from used fuel; federal law defines it mainly as waste from reprocessing spent fuel, and the planned deep repository is meant for both high-level waste and spent fuel. Low-level waste usually goes to shallow licensed burial sites; for high-level waste and spent fuel the U.S. has no permanent repository yet. Utah law bars placing high-level or Greater Than Class C waste in the state unless the governor, after consulting the county and with the Legislature's concurrence, approves it under strict conditions. A 2026 Utah law exempts interim storage of waste from a DOE-authorized test reactor at a state-owned facility from that bar, if the state's radiation division permits and licenses the project.

Why it matters here: DOE's review estimates Ward 250 makes under 1 cubic metre of solid low-level waste a year, sent to a licensed disposal site, plus one core of spent fuel (safe-023). The 2026 exemption fits Ward 250 at the state-owned lab but depends on a state permit and licence not found in public records as of 29 September 2026 (gov-017, csite-023, disc-033); a GRAMA request to the Division of Waste Management and Radiation Control would show whether one exists. The Carbon County lease bars waste storage on land under the lease but lets Valar buy land for spent-fuel storage (csite-008, disc-032).

related facts: safe-023, gov-017, csite-023, csite-008, gov-030
Radiation dose units: sieverts, millisieverts (mSv), rem and millirem

The dose numbers in this research are 'effective doses': estimates of the health risk from the radiation energy a body absorbs, measured in sieverts (Sv) internationally and rem in the U.S. One sievert equals 100 rem, so 1 millisievert (mSv) equals 100 millirem (mrem), and 10 mSv equals 1 rem. For scale, the average American gets about 6.2 mSv (620 mrem) a year from all sources, about half from nature (mostly radon) and nearly half from medical procedures; DOE puts central Utah's natural background at about 100-120 mrem a year. Rules cap a nuclear facility's routine dose to a member of the public at 1 mSv (100 mrem) a year, and a radiation worker's dose at 50 mSv (5 rem) a year. Very large doses in a short time (EPA: more than 0.75 gray of absorbed dose within minutes to hours) cause radiation sickness, while small doses are assumed to add a little lifetime cancer risk in proportion to the dose. Effective dose is a calculated estimate for comparing risks and setting limits; EPA says it cannot be used to predict any one person's health effects.

Think of it like thisLike sun exposure: what matters is how strong it is and how long you are in it; the sievert adds both up into one risk number.

Why it matters here: Valar's worst-case accident is stated two ways in one paper: under 0.5 rem (500 mrem) and under 100 mrem at the 400 m boundary (safe-013). 100 mrem is about one year of central Utah's natural background; the paper judges it against a 25 rem guideline and a 1 rem NRC emergency-planning test, not zero, which does not match the state lab director's public description that companies must show no dose at the boundary (disc-009; loc-035, safe-015). Monitoring data that would show actual releases from Ward 250 have not been published (safe-024, disc-051).

related facts: safe-013, loc-035, safe-015, safe-024
What a CT scan is, and why 'it's like a CT scan' comparisons can mislead

A CT (computed tomography) scan is a hospital X-ray imaging exam. Its dose varies by a factor of ten or more with the body part, the patient and the machine; FDA puts typical diagnostic CT doses at about 1 to 10 mSv (for example about 2 mSv for a head scan and 7-8 mSv for the chest or abdomen). Comparing another exposure to 'a CT scan' can mislead in three ways: it leaves out which scan is meant (the range is tenfold), it leaves out the time involved, and it ignores that a CT is a brief, controlled, medically justified exposure. Near a strong source the dose rate is what counts, so the minutes of exposure change the answer enormously. Effective dose is also built for comparing average risks; radiology guidance, quoting the ICRP, calls its use 'very problematic when organs and tissues receive only partial exposure', as with hands holding an object.

Think of it like thisSaying an exposure 'equals a CT scan' is like saying a trip 'equals a drive to the store' without giving the speed or the minutes: the comparison cannot be checked.

Why it matters here: Valar's April 2025 NRC-lawsuit post says its analysis shows that holding the spent fuel of its planned 100 kWt Ward One reactor for five minutes gives the radiation exposure of a CAT scan (orig-017). No calculation supporting it was found on Valar's site (safe-026). The post gives no cooling time and no type of scan, and Valar's own safety paper for Ward 250 treats reactor shielding as a safety function and plans for defueled fuel to go to storage (safe-026). The sentence is still on Valar's site, unchanged, and the page was later tagged asking search engines not to list it (orig-061, disc-014). For scale: a CT scan is about 1 to 10 millisieverts (FDA), so five minutes would need 12 to 120 millisieverts an hour; the post gives no amount of fuel, cooling time, distance or shielding.

related facts: orig-017, safe-026, orig-061
DOE authorization vs NRC license: who checks what, and what the public gets to see

Commercial nuclear power plants need a license from the Nuclear Regulatory Commission (NRC), an independent regulator; the law gives any person whose interest may be affected the right to request a hearing, and a construction permit for a new plant gets a hearing after notice in the Federal Register. The Atomic Energy Act lets the Department of Energy (DOE), which also promotes nuclear energy, run or approve reactors 'under contract with and for the account of' DOE without an NRC license; a 1974 law brings DOE demonstration reactors under NRC licensing only when they are part of a utility's power system or are meant to show suitability for commercial use. Executive Order 14301 (May 2025) declared that advanced test reactors under DOE's sufficient control that do not produce commercial electric power are research reactors under DOE's authority. Under DOE's 2025 rulebook for these reactors (DOE-STD-1271-2025), the company is its own design authority, DOE reviews each safety document in about 45 days, and the Energy Secretary approves the startup; the standard contains no public hearing, comment period or Federal Register notice. DOE says its process is 'fundamentally similar' to the NRC's on safety; the visible difference for the public is that the NRC route comes with notice and hearing rights, and the DOE route does not.

Think of it like thisLike two routes to the same destination: one has public checkpoints where anyone affected can ask questions, the other has private checkpoints the public does not see.

Why it matters here: Ward 250 is authorized by DOE alone, and its safety paper says no move to an NRC license is planned (safe-001, safe-002). DOE's claim of similarity and outside critics' doubts are at safe-004, safe-003 and disc-023; NRC staff can assist DOE reviews, but disputes they raise are settled under a DOE procedure (safe-035). The state lab's FAQ still promises NRC licensing, and the governor spoke of NRC oversight in 2025 (disc-021; gov-026, gov-012). DOE has published no safety analysis, safety evaluation report or startup approval for Ward 250 (safe-007, disc-022). For the Carbon campus, the state lease memo points to NRC licensing for commercial reactors, while in 2025 Valar's CEO argued the NRC wrongly claimed jurisdiction over its project (csite-010, csite-022, disc-027).

related facts: safe-001, safe-002, safe-003, safe-004, safe-035, gov-026, gov-012, safe-007, csite-010, csite-022, safe-032
Executive Order 14301 and DOE's Reactor Pilot Program

Executive Order 14301, signed on 23 May 2025, told DOE to speed up approval of test reactors and to create a pilot program for reactors built and run outside the national laboratories under DOE authorization. It set a goal of at least three such reactors reaching criticality by 4 July 2026, told DOE to form a team for each qualified applicant to 'provide assistance to the applicant', and told DOE to cut or speed up environmental reviews, including by creating categorical exclusions (exp-016). Its legal logic is that reactors under DOE's control that do not produce commercial electric power are research, not demonstrations of commercial suitability, so they fall to DOE rather than the NRC. DOE opened the Reactor Pilot Program on 18 June 2025, named its first 11 projects in August 2025 and describes the program as a pathway to fast-track later commercial licensing. DOE's release on Ward 250's criticality said it 'marks the first DOE authorized reactor built outside of a national laboratory'; the Antares reactor that went critical earlier that month was at Idaho National Laboratory.

Why it matters here: Valar was selected in August 2025, with each company bearing its own costs (orig-006, orig-041, gov-007), and met the July 4 criticality goal (disc-044). DOE counted four criticalities toward the order's goal, three of them at Idaho National Laboratory (gov-006). The order's companion orders and its requirement that DOE teams assist applicants are at gov-005 and gov-009. Because the order's line is 'commercial electric power', Valar's planned commercial units and behind-the-meter power sales would need a different route, which Valar has not named (disc-026; safe-030, gov-033).

related facts: orig-006, orig-041, gov-007, gov-006, gov-005, gov-009, safe-030, gov-033
NEPA environmental review: categorical exclusion vs environmental assessment vs environmental impact statement

The National Environmental Policy Act (1969) makes federal agencies consider the environmental effects of what they approve or fund, at one of three levels. An environmental impact statement (EIS) is the full study, required when effects could be significant; it weighs alternatives and must be made available to the public, and the process normally includes a Federal Register notice and a draft for public comment. An environmental assessment (EA) is a shorter public document for when significant effects are not expected or are unknown; it ends in either a finding of no significant impact or a decision to prepare an EIS. A categorical exclusion (CX) is a class of actions an agency has decided in advance normally has no significant effect; a project that fits gets a short signed determination that it fits the class and that no 'extraordinary circumstances' apply. By a notice of 2 February 2026, DOE added to its procedures a categorical exclusion for authorizing, siting, building, operating and decommissioning advanced reactors (B5.26), and invited comments on it afterwards, until 4 March.

Think of it like thisLike permits for work on a house: a new house needs full plans and a public hearing, an addition gets a shorter review, and routine repainting is on a pre-approved list that just needs a sign-off. A categorical exclusion puts a project on the pre-approved list.

Why it matters here: Ward 250 cleared NEPA under B5.26 in a seven-page determination signed on 22 April 2026, so no EA or EIS was written and no public comment was taken on the reactor itself (csite-020). A categorical exclusion is an environmental-review (NEPA) decision, separate from DOE's nuclear-safety approval of the reactor (safety basis, readiness review, startup approval; exp-017, dir-031, safe-041): it does not certify the reactor safe, and it does not show that the safety review was skipped. Under B5.26, DOE must still determine that the project's attributes (fission-product inventory, fuel type, reactor design and operating plans) sufficiently reduce the risk of adverse offsite consequences from a release (CX p. 6). The Nuclear Information and Resource Service, for itself and other groups including HEAL Utah and Uranium Watch, objected to the new exclusion; DOE had posted no response when it cleared Ward 250 (safe-029). The determination says the proposal 'has not been segmented' and describes one 24-month test, while Valar already had a 10,270-acre BLM application pending and was mapping the Carbon lease (disc-028; csite-021, mine-006, mine-048). Its environmental description also contains checkable errors: it says no major emission source lies within 10 miles (a coal plant is about 6 miles away) and names only a fault 150 km off (disc-012; safe-021, safe-022).

related facts: csite-020, safe-029, csite-021, mine-006, mine-048, safe-021, safe-022, loc-025
Documented Safety Analysis (PDSA and DSA), Technical Safety Requirements and DOE's Safety Evaluation Report

Under DOE's nuclear safety rule (10 CFR 830), a Documented Safety Analysis (DSA) is the operator's written case that a facility can run safely: what could go wrong, how bad it could be, and which equipment and rules prevent or limit it. A preliminary version (PDSA) comes at mid-design, and the final DSA, once DOE approves it, becomes the 'safety basis' the reactor must operate within. Technical Safety Requirements (TSRs) turn the analysis into hard operating limits, such as maximum power and temperature, and DOE writes a Safety Evaluation Report explaining the basis for its approval and any conditions. After approval the operator screens most changes itself through an 'unreviewed safety question' process and must go back to DOE only for changes that cross the approved safety basis. Under DOE's 2025 standard for new reactors, DOE reviews each document within about 45 days and limits its comments to issues affecting public or worker safety.

Think of it like thisLike a building's stamped engineering plans plus the limits posted on the wall: the plans show why it stands up, the posted limits say how much it may safely hold.

Why it matters here: Valar says DOE approved Ward 250's PDSA in February 2026 and its final DSA on 23 April 2026 (safe-006, orig-033). DOE confirms the reactor is authorized, and its Office of Environmental Management says its staff reviewed contractor submittals for the pilot microreactor designs and took part in the federal readiness review of Ward 250 before startup (dir-031); no public copy of the DSA, the TSRs, DOE's Safety Evaluation Report or the startup approval was found (safe-007, disc-022). Under 10 CFR 830.207(a), a new Hazard Category 1, 2 or 3 DOE nuclear facility may not begin operation before DOE issues a Safety Evaluation Report approving its safety basis; Valar's NSDA classes Ward 250 as Hazard Category 2 under that rule (safe-041). Because the only public safety paper still lists 4.95% fuel, only the approved DSA can show whether the safety case was redone for the HALEU that DOE cleared (disc-001). Valar proposed submitting the final DSA at 90% design and checking the as-built plant later (safe-005), and after approval it acts as its own design authority for changes within the basis (safe-019). These documents can be requested from DOE under FOIA (exp-032).

related facts: safe-006, orig-033, safe-007, safe-005, safe-019, safe-027, gov-037
Nuclear Safety Design Agreement (NSDA)

Under DOE's 2025 standard, the NSDA is the first safety document: an early agreement between the company and DOE on the design requirements, how safety will be analyzed, which rules apply, which rules the company proposes to replace with alternatives, and the key safety decisions. It is a plan for how safety will be shown, not the proof itself; the proof comes later in the PDSA and DSA. Because it comes early, many of its numbers are preliminary, and changes are supposed to be carried into the later analyses. Valar's NSDA for Ward 250 (document 100403, revision 02, October 2025) is the only one of its reactor safety documents that has been published, and its cover marks it as a draft.

Think of it like thisLike agreeing the rules and the marking scheme before an exam: it says how the answer will be judged, not what the answer is.

Why it matters here: Valar's library said in October 2025 that DOE had approved the NSDA, but the PDF's own milestone table lists its review status as 'In Review' (safe-027, safe-005). The paper lists 4.95% fuel, a 650°C outlet limit beside a 750°C goal, 100 kWt continuous and 250 kWt for one hour, and asks for six alternatives to standard DOE requirements, including research-reactor quality assurance instead of NQA-1 and on-site-only emergency planning (disc-001, disc-002, safe-008, safe-018, safe-016). Every public copy since November 2025 carries the same 4.95% line (dir-009), and Valar's website library never listed its two safety papers (dir-010).

related facts: safe-027, safe-005, orig-034, dir-009, dir-010, safe-008, safe-018, safe-016, orig-071
Worst-case accident analysis ('Maximum Hypothetical Accident') and the site boundary

A Maximum Hypothetical Accident is a made-up worst case, deliberately harsher than any accident expected, used to show that even then the dose to people outside stays under set limits. Valar's version for Ward 250 assumes a large break in the reactor vessel, loss of helium pressure, fuel-particle failures at twice unspecified AGR test-program values, no credit for the building or filters, a ground-level release and stable air with a 1 m/s wind. The dose is calculated at the 'site boundary', which NRC rules (10 CFR 20.1003) define as the line beyond which the operator does not own, lease or otherwise control the land; Valar's draft paper places it 400 metres (about a quarter mile) from the reactor and calls it 'the nearest point of public access'. That is the distance the paper chose for its dose calculation; no DOE document read sets 400 m as a required boundary for Ward 250. The yardstick matches the NRC's reactor-siting rule (10 CFR 100.11): a person at the edge of the exclusion area should not get more than 25 rem in the two hours after a hypothetical major release; Valar's paper also compares its result with a 1 rem figure it labels 'USNRC NPUF', which matches the NRC's test for sizing an emergency planning zone (1 rem over 96 hours). The result depends on its inputs, above all how much radioactive material has built up in the core, which depends on how long and how hard the reactor has run.

Think of it like thisLike a bridge engineer assuming the heaviest truck, the worst wind and a missing support all at once: if the bridge still holds on paper, ordinary days are covered, but the check is only as good as the numbers put in.

Why it matters here: Valar's paper gives two results for the 400 m boundary: under 0.5 rem in one place and under 0.1 rem in another (safe-013). A 400 m circle covers about 124 acres, far more than the 20.6-acre lab site, so the boundary must cross land the lab does not hold, and no record read shows how that land is controlled; officials called the fence line buffer enough (disc-008; safe-014, ppl-021, mine-035). The core inventory behind the result assumes 3 megawatt-days of operation, while the same paper's burnup limit reads 30 megawatt-days (exp-022; disc-005, safe-009). Our check: its 400 m dispersion factor is 3.1 to 12.3 times lower than standard rural methods give for its stated weather.

related facts: safe-013, safe-014, ppl-021, mine-035, safe-009, loc-035
Emergency planning zones (EPZ)

An emergency planning zone is the area around a nuclear plant where warning, sheltering and evacuation are planned in advance. For large power reactors, NRC rules generally set a plume zone of about 10 miles and a food-and-water zone of about 50 miles, and allow case-by-case sizing for gas-cooled reactors and reactors under 250 MW of heat. Since late 2023 NRC rules let small modular, non-light-water and research reactors size the zone by analysis: it covers the area where an accident could give a member of the public more than 1 rem over 96 hours, and it may end at the site boundary if no one outside would get that much. Where the zone extends past the site boundary, the plan must include arrangements with state and local agencies, public alerting, protective actions and drills with offsite responders. EPA's guidance to emergency managers is to consider evacuating or sheltering people when the projected dose exceeds 1 to 5 rem (10-50 mSv) over four days.

Think of it like thisLike a school's fire-drill map: it decides in advance who leaves by which door and where everyone gathers, so no one works it out during the emergency.

Why it matters here: Ward 250 is under DOE, not the NRC; Valar asked DOE to tailor its emergency order to on-site response only, citing a worst-case boundary dose under 0.5 rem and 800 m to the nearest home (safe-016). By the NRC's own small-reactor yardstick (1 rem over 96 hours, 10 CFR 50.33(g)(2)), a result that low would let a zone stop at the fence, if the numbers hold; the final analysis is not public (disc-010). Two cautions from our check: the paper's 400 m dispersion factor is 3.1 to 12.3 times lower than standard rural methods give, which would cut its 10-fold margin to about 3.2, or below 1 at the bound; and it does not address EPA's 5 rem child-thyroid guide for potassium iodide. Valar told DOE that Utah already has DOE notification agreements and that it would hold drills with Emery County responders; none was found in public records (disc-010, safe-034). Orangeville's ambulance service was available 13% of the time in June 2026, per a council report, and the State Fire Marshal declined to review the reactor building (loc-008, loc-018). For the Carbon site, emergency planning is left to future licensing (csite-009).

related facts: safe-016, safe-034, loc-008, loc-018, csite-009, safe-013
'Functional containment': relying on the fuel instead of a containment building

Ordinary water-cooled power reactors have leak-tight, pressure-retaining containment structures around the reactor as a barrier to radioactive releases. Many HTGR designs instead rely on 'functional containment': the TRISO coatings are treated as the main barrier, backed by the reactor vessel and an ordinary building. The approach depends on every batch of fuel being made to specification and performing as tested. The Union of Concerned Scientists warns that building HTGRs without leak-tight containment could cancel out their built-in safety benefits, given the remaining unknowns.

Think of it like thisLike relying on each egg's own shell instead of also packing the eggs in a carton: it works if every shell is sound.

Why it matters here: Valar's safety paper says the fuel serves as the primary barrier, 'eliminating reliance on conventional pressure-retaining containment structures', and DOE's environmental review repeats the approach (orig-034, csite-020). Its worst case gives no credit for the building or its filters (safe-013). Valar uses a research-reactor quality program rather than NQA-1 and plans to make its own TRISO fuel (exp-025; safe-018, orig-038, disc-017), which puts extra weight on manufacturing quality. See disc-016 for the independent view applied to Valar's claims.

related facts: orig-034, csite-020, safe-013, safe-018, orig-038, safe-025
Burnup, megawatt-days and 'effective full-power days'

Burnup measures how much energy has been taken out of fuel, and so how much radioactive material has built up inside it. A megawatt-day (MWd) is one megawatt of heat for one day; an 'effective full-power day' is one day's worth of running at full rated power, however it is spread out. Ward 250 at its 100 kW limit for 30 full-power days makes 3,000 kilowatt-days, which is 3 megawatt-days. More burnup means more fission products in the fuel, so a safety analysis has to assume at least as much burnup as the reactor will actually reach. For scale, fuel in a large power reactor reaches tens of thousands of megawatt-days per tonne of uranium. On the 250 kg of heavy metal in Valar's paper, 3 MWd is about 12 megawatt-days per tonne, and even 30 MWd only about 120: hundreds to thousands of times below power-reactor fuel.

Think of it like thisLike a car's odometer: it records how far the car has gone, and wear builds up with the miles.

Why it matters here: Valar's accident analysis builds its radioactive inventory on 3 MWd (30 full-power days at 100 kW), but the same paper's operating limit reads 'Fuel burnup limit: 30 megawatt-days', ten times more (safe-009, disc-005); a unit slip is the likeliest innocent reading, and only the non-public TSRs can settle it. Valar's unfinished 'By the Numbers' page says the reactor is licensed for 30 full-power days at 100 kWt and up to one day at 250 kWt (orig-035), while its safety paper describes a 12-month operating mission (plan-003, disc-007).

related facts: safe-009, orig-035, plan-003, safe-008
Price-Anderson Act: who pays if there is a nuclear accident

The Price-Anderson Act (1957) is the federal law on compensating the public for injuries and damage from a nuclear accident. NRC-licensed reactor owners must carry insurance and share in an industry-wide backup pool; for work done under contract with DOE, DOE itself indemnifies the contractor, and payments for accidents at DOE facilities come from the U.S. Treasury. The U.S. Code, as amended in 2024, requires DOE to enter into these indemnity agreements with contractors whose work carries a risk of public liability until 31 December 2065, and covers NRC licences issued through the same date. Whether and how a particular private test reactor is covered depends on its agreement with DOE.

Why it matters here: DOE has said, as reported by the Breakthrough Institute, that a pilot-program reactor is treated as a DOE reactor covered by Price-Anderson, with details set in each company's Other Transaction Agreement (fund-014); Valar's agreement is not public (exp-024; gov-003). Valar's safety paper marks the financial-qualifications chapter as not required for its application (fund-018).

related facts: fund-014, gov-003, fund-018
Other Transaction Agreement (OTA)

An Other Transaction Agreement is a flexible deal DOE may use for a research, development or demonstration project when it decides in writing that a standard contract, grant or cooperative agreement is not 'feasible or appropriate'. Congress gave DOE this power in 2005, borrowing the Defense Department's version, and under current law it ends on 30 September 2030. Its terms are negotiated case by case, so the agreement is where many key conditions live: who pays, who is liable, and which DOE rules apply or are swapped out. The same law lets DOE keep information developed under such an agreement from public release for up to 5 years, or up to 30 years for technology such as nuclear that needs longer to reach the market.

Think of it like thisLike a custom contract written for one job instead of a standard form: flexible, but you have to read that contract to know the terms.

Why it matters here: Valar's agreement with DOE (DENE0009560) is on file at $0 and runs to 4 July 2027 (orig-055, gov-003), but its text is not public. Valar's safety paper says its swap of DOE's worker-safety rule for OSHA standards was 'approved through the OTA' (disc-019, safe-017), and DOE-STD-1271 starts the whole authorization with negotiating these contract terms (safe-002). DOE's help in kind, such as its review, a national-lab test and fuel from a federal site, is not priced in any public record (fund-011, fund-012, disc-046). A FOIA request for the OTA is the way to test it, though DOE may withhold parts as confidential commercial or technical information.

related facts: orig-055, gov-003, safe-017, safe-002, fund-011, fund-012, gov-032
Nuclear quality assurance: NQA-1 vs the research-reactor standard ANS-15.8

Quality assurance is the system of checks and records that proves parts, software and work were made and done as designed, from the fuel to the welds. The nuclear industry's main standard is ASME NQA-1, whose 18 requirements come from the 18 quality criteria in the NRC's rules for power plants (10 CFR 50, Appendix B). DOE's own quality rule for nuclear facilities, 10 CFR 830.122, lists 10 criteria and asks operators to use consensus standards where practical. Research reactors often use a lighter standard, ANSI/ANS-15.8, with less documentation. The choice matters most where safety rests on manufactured quality, as it does with TRISO fuel.

Think of it like thisLike a long and a short version of the same inspection checklist: both cover the main points, but the long one demands more proof and records at each step.

Why it matters here: Valar's quality program uses ANS-15.8 instead of NQA-1, allows computer codes to be used before full validation, and covers both Ward 250 and its planned fuel plant (safe-018, orig-038, plan-015). Its safety paper twice refers to 'the 18 criteria of 10 CFR 830.122'; the rule as published lists 10 criteria, and 18 is the count in the NRC's Appendix B that NQA-1 follows. That is a checkable misstatement in the paper Valar says DOE approved (safe-005), not evidence of intent.

related facts: safe-018, orig-038, plan-015, safe-005
Occurrence reporting: how problems at DOE nuclear facilities are reported

DOE facilities must report 'occurrences', events that could affect worker or public health and safety, the environment, national security, the facility's operation or DOE's reputation, through DOE's Occurrence Reporting and Processing System (ORPS). DOE uses the reports to notify its sites quickly and to look for patterns across them. The reports are not published: DOE says access is restricted, for security reasons, to approved DOE and contractor staff. So a quiet public record at a DOE-authorized reactor does not by itself show that nothing was reported.

Why it matters here: Valar's safety paper commits Ward 250 to the Office of Nuclear Energy's occurrence-reporting order (NE O 232.1), accident investigations and DOE's employee-concerns program (safe-033). No incident, occurrence or violation involving Ward 250 is on the public record as of 29 September 2026, but because DOE's reports are closed, that absence settles nothing; a FOIA request to DOE for occurrence reports, or a statement that none exist, would (exp-032). Valar's quality program (p.20) cites a different occurrence-reporting order, NE O 232.2; in DOE's own numbering 232.2 (2011) replaced 232.1 (1990s). The NE orders are not public, so which is current cannot be checked.

related facts: safe-033, safe-007
Mining claims: lode vs placer, and what can be claimed

A mining claim is a parcel of federal public land where a person or company asserts the right to explore for and mine a valuable mineral deposit it has discovered; it does not include exclusive rights to the surface. A lode claim covers a vein or zone of mineral-bearing rock in place, such as a gold-bearing quartz vein; by law it can be at most 1,500 feet long and 600 feet wide (300 feet each side of the vein). A placer claim covers loose deposits, such as gold in stream gravel, and is laid out on the public land survey, up to 20 acres per person; mill sites (up to 5 acres) and tunnel sites are related kinds of claim. Claims can be made only on federal land open to mining, not on state or private land, and only for 'locatable' minerals such as metals; common sand, stone and gravel do not count. No lode claim may be located until a vein or lode has actually been discovered inside its boundaries.

Think of it like thisCloser to a right to dig than a deed to the land: the claim holder may prospect and mine, but the land stays federal.

Why it matters here: A notice posted at claim markers north-east of Wellington names Valar Atomics Inc as locator of the 'RW 453' lode claim, about 1,500 by 600 feet, located 12 September 2026, two miles south of the Carbon lease (fld-001, fld-002, csite-019). The only mineral occurrences on record nearby are road-gravel pits and a carbon dioxide field, and common gravel cannot support a claim (dir-003); most of the land in the section named is private, and federal land is about 37% of its north half (dir-002). What mineral Valar says it discovered is not on any public record read, and why a reactor company staked a lode claim there is an open question (disc-003).

related facts: fld-001, fld-002, csite-019, dir-002, dir-003, dir-004, mine-021
How staking and location notices work in Utah

To locate (stake) a lode claim in Utah, the locator must first discover the vein, then build a monument at the discovery point and post a notice of location on it. The notice must give the claim's name, the locators' names, the date, the length claimed along the vein and the width, the vein's general direction, and a tie to a natural object or permanent monument so the claim can be found. The boundaries must be marked on the ground so they can be traced; a copy of the notice must be recorded with the county recorder within 30 days, and a copy filed with the BLM within 90 days, or the claim is treated as abandoned. Holders then pay the BLM a yearly maintenance fee by 1 September (the 1993 law set $100 a claim; BLM's fee page now lists $200), or, if they hold 10 or fewer claims, may do yearly work instead; Utah also requires a yearly affidavit at the county. Tearing down or defacing a posted claim notice or monument is a class B misdemeanor in Utah, so markers should be photographed, not moved.

Think of it like thisLike posting a 'claimed' sign on a spot and then registering it at two offices: the sign on the ground, the county record and the federal file must all match.

Why it matters here: The RW 453 notice was posted on 12 September 2026 (fld-002). Its county recording was due within 30 days, by about 12 October, and its BLM filing within 90 days, by 11 December 2026, so its absence from BLM's public map on 29 September is not a lapse (dir-005, mine-025, mine-026). The notice's survey tie, as written, points about 1.5 miles west, outside the section it names, probably a bearing error (dir-001). A records request to the Carbon County Recorder, and later BLM's case file, would show what was recorded and whether other claims in an 'RW' series exist (exp-032).

related facts: fld-002, dir-005, mine-025, mine-026, dir-001, csite-019, mine-031
What an unpatented mining claim does and does not allow

An 'unpatented' claim is one the government has not deeded over: the land stays federal, and the claim gives only the right to use it for mining; since 1994 budget restrictions set by Congress have stopped the BLM from accepting new patent applications. Since 1955, federal law has said such a claim may not be used for anything other than prospecting, mining or processing and uses reasonably incident to them; BLM's rules give examples of forbidden uses such as filling stations, cafes and tourist camps. Living on a claim, putting up structures, or fencing out the public requires regular, observable mining work and BLM review and concurrence first, and blocking public passage by force, threats or intimidation is prohibited. The United States keeps the right to manage the surface and let others use it, as long as that does not materially interfere with mining. A claim therefore cannot lawfully serve as a site for a reactor, a data center or any other plant unrelated to mining.

Think of it like thisLike a garden plot you may use only for gardening: you can grow things and keep a tool shed for the work, but you cannot open a shop on it.

Why it matters here: Valar's reactor sites so far come by state lease, purchase and BLM land-use applications, not by mining claims (mine-027, mine-007, mine-006); the RW 453 claim lies two miles south of the Carbon lease (csite-019). Whatever RW 453 is for, federal law limits it to mining and uses reasonably incident to mining (mine-022, mine-023), and no BLM mining notice or plan of operations by Valar appears in BLM's public layers (mine-030, mine-024). Why it was staked where only road gravel is recorded is an open question (disc-003).

related facts: mine-022, mine-023, mine-024, mine-027, mine-007, mine-006, mine-030, csite-019, dir-003
Utah's Open and Public Meetings Act

Utah's Open and Public Meetings Act says state and local public bodies exist to conduct the people's business and must take their actions and deliberate openly. Any gathering of a quorum called to take comment, deliberate or act is a meeting and must be open, with at least 24 hours' public notice giving the agenda, date, time and place, posted on the Utah Public Notice Website. Agendas must describe topics with 'reasonable specificity', and a body may not take final action on a topic that was not listed on the posted agenda, except in a genuine emergency. Written minutes and a recording must be kept; state bodies and many local bodies must make draft minutes public within 30 days and the audio within three business days. A meeting may be closed only by vote (usually two-thirds) for listed reasons, such as some property deals, litigation strategy or discussing a person's competence, and the closed part is normally recorded; a court can void an action taken in violation if suit is filed within 90 days.

Think of it like thisLike a homeowners' association that must post its agenda on the bulletin board ahead of time and can vote only on what it posted.

Why it matters here: Two committees of the state Trust Lands board discussed the Carbon lease terms in July and August 2026 with no notices on the state website (csite-017). Valar first appears on a public Trust Lands agenda on 10 August 2026, four months after the state's lease map was made (csite-018, mine-048), and the Carbon County lease notice named neither Valar nor any use (csite-005, loc-032). No Carbon County agenda names the Wellington site, though commissioners signed a support letter in June 2026 (mine-013, csite-026, csite-030). These are gaps against the Act's standard of openness; whether any meeting broke the Act is a matter for the county attorney, the attorney general or a court, and minutes, recordings and notices obtained under GRAMA would show what was discussed (exp-031; disc-029, disc-031).

related facts: csite-016, csite-017, csite-018, mine-048, csite-005, loc-032, mine-013, csite-026, csite-030, ppl-020
GRAMA: Utah's public records law

Utah's Government Records Access and Management Act (GRAMA) gives any person the right to inspect public records free of charge and to get copies, usually for a reasonable fee; a record is public unless a law expressly says otherwise. Records can be withheld only if they fit listed categories: 'private' (mostly personal information), 'controlled' (medical and psychological data), or 'protected', which includes trade secrets and certain business and economic-development information that a company has formally claimed as confidential. An agency must answer a written request within 10 business days (5 if the requester shows the request mainly benefits the public) by providing the record, denying it in writing with the legal reason, saying it does not hold it, or explaining why extraordinary circumstances need more time. A denial can be appealed to the agency's chief administrative officer within 30 days, and then to the state Government Records Office (which replaced the State Records Committee in 2025), a local appeals board, or a district court; a state records ombudsman offers mediation.

Think of it like thisLike a library whose shelves are open by default: a book can be kept behind the desk only if a posted rule names the reason, and you can challenge the reason.

Why it matters here: The state's May 2025 agreement with Valar was confidential and barred publicity without consent (gov-011, disc-030). GRAMA's protections for trade secrets and confidential economic-development information are the likely legal basis for withholding such records, but they apply only to information a company formally claimed and an agency properly classified, and a denial can be appealed. Carbon County officials said nondisclosure agreements are usually the companies' demand (loc-002, loc-036). The open questions across this knowledge base list the GRAMA requests that would show what state and county officials knew about the Carbon site, and when (exp-032).

related facts: gov-011, loc-002, loc-036, csite-005, ppl-027
What a records request is, and how to file one (FOIA and GRAMA)

A records request asks a government office for copies of documents it already holds; under FOIA, agencies do not have to create new records, do research or answer questions, so a request should name records rather than ask questions. For federal agencies such as DOE, the NRC or the BLM, use the Freedom of Information Act (FOIA): generally any person may ask, in writing, describing the records reasonably; most agencies take requests online (DOE asks for them through FOIA.gov), there is no fee to file, and search or copy fees can be waived when disclosure serves the public. A federal agency must decide within 20 working days (it often takes longer), may black out material under nine exemptions such as confidential commercial information, and must tell you how to appeal. For Utah state and local offices, such as a county recorder, a county commission or a state board, use GRAMA: send a written request with your name, mailing address and daytime phone, directly or through Utah's Open Records Portal; the answer is due within 10 business days, or 5 if expedited for public benefit. A good request names the exact record and a date range, for example 'the recorded notice of location for the RW 453 lode claim, located 12 September 2026', and asks for electronic copies.

Think of it like thisLike asking a library for a book by its title and call number: the more exactly you name it, the faster and cheaper it is to find.

Why it matters here: Many gaps in this record are 'no public record found' findings that a request can settle: Valar's OTA, DSA, TSRs, startup approval and any occurrence reports at DOE (safe-007, disc-022; exp-017, exp-024, exp-026); the RW 453 recording at the Carbon County Recorder (dir-005); minutes, recordings and correspondence on the Carbon lease at Trust Lands and Carbon County (csite-017, disc-031); the state-DOE notification agreements Valar cited (disc-010); and any state permit or licence under the 2026 waste exemption (gov-017). An absent record is a finding, not proof of secrecy, until the request comes back.

related facts: safe-007, dir-005, csite-017, gov-017, safe-034, mine-031
County conditional use permit (CUP)

Zoning lists what may be built in each zone: 'permitted' uses are allowed as of right, while 'conditional' uses are allowed only after the county reviews the specific project and can attach conditions. Under Utah law a county must approve a conditional use if reasonable conditions are proposed or can be imposed to mitigate its reasonably anticipated harmful effects, and mitigation does not have to eliminate those effects. The county may deny one only if the harms cannot be substantially mitigated, and the decision is an administrative one made under the county's written standards. So for a large industrial project, the county's written standards, and what conditions it can impose, largely decide the outcome.

Think of it like thisLike a landlord who must allow a tenant's request if reasonable house rules can handle the problems it causes: the rules decide the outcome, not whether the landlord likes the idea.

Why it matters here: The Carbon lease parcel is zoned Mining and Grazing, where large industrial projects are a conditional use; the Trust Lands memo says the county process includes notice and a hearing, while state law requires approval if harms can be reasonably mitigated (csite-015). No Valar permit request has reached Carbon County's planning commission, and the county is drafting rules for large contested projects and data centers (csite-012, csite-013). Emery County has no zoning standards for nuclear projects yet and has proposed a 180-day pause on major permits (loc-024, gov-024, mine-043).

related facts: csite-015, csite-012, csite-013, loc-024, gov-024, mine-043, mine-015
Utah trust lands, special use leases and 'other business arrangements'

Utah's school and institutional trust lands were granted by Congress at statehood to support public schools and other beneficiaries; the state must manage them for those beneficiaries, prudently and for the best return. The Trust Lands Administration leases or sells this land; for an ordinary special use lease its rules require at least 30 days' notice by certified mail to the county, current lessees and neighbours to invite competing offers (the director may waive this); the notice must describe the land and give an agency contact, and may add other details only if they do not break the confidentiality of the application. Lease proposals also go to the state's Resource Development Coordinating Committee (RDCC) for review, and ordinary leases should not normally run longer than 30 years. An 'other business arrangement', such as a lease-to-sell deal, is exempt from those lease rules but must be approved by the trust board, which may evaluate such a deal in a closed strategy session, by a two-thirds vote, if public discussion would weaken the trust's bargaining and the terms are disclosed before it votes.

Think of it like thisLike a family trust managing land for the children: the trustee must get the best deal for them, and can negotiate privately, but the final terms come to the board.

Why it matters here: Valar's Carbon County deal is an 'other business arrangement' on state trust land in Section 16 north of Wellington, running 50 years plus two 25-year extensions, with an option to buy (csite-004, mine-010, mine-011). The notice for it named neither Valar nor a nuclear use, which the notice rule allows (csite-005, mine-012, loc-032), and the state's first public notice (to the coordinating committee, April 2026) called it an industrial and power project (csite-032). The lease pays the statewide school trust, not Carbon County's schools directly (loc-021).

related facts: csite-004, mine-010, mine-011, csite-005, mine-012, loc-032, csite-032, loc-021, csite-002, csite-003
Thermoelectric generator: making electricity straight from heat

A thermoelectric generator turns a temperature difference directly into electricity using junctions of special semiconductors, with no moving parts. It is simple and reliable, which is why NASA uses a version heated by radioactive decay to power deep-space probes. But it is inefficient: typical devices turn only about 5-8% of the heat into electricity, against about a third for a steam power plant. So a thermoelectric demonstration shows that a reactor's heat can make some electricity; it does not show how the reactor would perform in a power plant.

Why it matters here: Ward 250's 1 July 2026 'first electricity' powered an NVIDIA chip through a thermoelectric converter, with the reactor reported at 37% power; no measured electrical output has been published (disc-025; plan-010, orig-013, orig-042). At a typical 5-8%, about 37 kW of heat would give roughly 2 to 3 kW of electricity (our arithmetic, not a measurement). Valar's steps toward conventional power conversion, turbine job openings and a gas-fired test heater still in design, are at plan-018.

related facts: plan-010, orig-013, orig-042, plan-018
The sulfur-iodine cycle: making hydrogen with very high heat

The sulfur-iodine cycle is a chain of chemical reactions that splits water into hydrogen and oxygen using heat instead of electricity, reusing its sulfur and iodine chemicals in a loop. It needs very high temperatures, at least about 850°C, and uses corrosive chemicals including strong acids, so it needs special materials. DOE describes heat-driven water splitting, the family it belongs to, as 'a long-term technology pathway'. High-temperature gas reactors are often proposed as its heat source because they can reach such temperatures.

Why it matters here: Valar's home page says its reactors paired with its sulfur-iodine process produce cheap, abundant hydrogen. No hydrogen production is on record, and the only Valar reactor with a public safety paper is limited to a 650°C outlet, below what the cycle needs (disc-037; orig-063, orig-023, orig-024, orig-034).

related facts: orig-063, orig-023, orig-024, orig-034, orig-001
BLM rights-of-way and land-use applications

To build a road, power line, pipeline, plant or other facility on federal public land, a company needs a right-of-way grant or similar authorization from the Bureau of Land Management, which may grant it when that is in the public interest. An application starts a review: BLM confirms receipt and charges cost-recovery fees, may ask for detailed plans and surveys, and completes environmental review under NEPA before deciding. BLM holds public meetings on an application only if there is enough public interest to justify them (for solar and wind it must hold one if there is no other early engagement), announced in the Federal Register and by other means such as local newspapers. A pending application gives no right to build; only a grant does.

Why it matters here: BLM's public layer lists three pending Valar applications at its Price office, including a 10,270-acre Green River Gigasite for reactors and a data center, pending since 13 February 2026 (mine-006). Valar told a newspaper it dropped that site, but BLM still lists it as pending (disc-054, mine-008). No Federal Register notice for these applications was found (mine-028, mine-009), and DOE's April 2026 environmental review of Ward 250 did not mention them (disc-028).

related facts: mine-006, mine-007, mine-008, mine-009, mine-028, plan-017
SEC Form D: the notice of a private fundraising

When a company raises money privately under the SEC's Regulation D exemptions (Rules 504 or 506), it must file a short public notice, Form D, within 15 calendar days after the first sale. Form D notices are filed electronically on the SEC's EDGAR system, where anyone can search them. The requirement applies to offerings that rely on those rules, so a missing Form D does not by itself show a violation: a company may have used another exemption. In 2024 the SEC brought its first enforcement action aimed specifically at companies that failed to file Form D.

Why it matters here: Valar Atomics Inc. has filed no Form D for any of its reported rounds, including the $1 billion Series B; only outside investment pools that bought Valar shares filed (fund-010, orig-056). So Valar's funding totals rest on company announcements and press reports, not filings (fund-008, disc-043).

related facts: fund-010, orig-056, fund-008, fund-007