SMRMap updates

Report dated 9 Oct 2026 — Xuwei preparations meet construction-licence conditions

NNSA's inspection team found that site management and technical preparations met the conditions for issuing a construction licence, while setting seven corrective requirements. The report itself does not issue that licence or establish that first concrete occurred.

Record: Xuwei nuclear heating and power plant Unit 3 (HTGR). Source: NNSA: Xuwei Unit 3 pre-construction inspection report

Consultation opened 9 Oct 2026 — Consultation opens on the proposed Norrsundet facility plan

The Gävleborg county board opened consultation on its proposed facility plan and environmental impact statement for the six-reactor Norrsundet park, running from 9 October to 13 November 2026. A draft plan under consultation; it is not Government approval or a licence to build.

Record: Blykalla SEALER Norrsundet / Gävle proposal. Source: Länsstyrelsen Gävleborg: Ny kärnkraft - samråd (Norrsundet facility plan)

Announced 7 Oct 2026 — Last Energy says DOE approved its PWR-5 final safety analysis

Last Energy said DOE approved its final Documented Safety Analysis for the PWR-5 pilot at Texas A&M-RELLIS. The company says DOE readiness review and startup authorization are still ahead. The announcement does not establish operating authority or criticality.

Record: Last Energy PWR-5 pilot at Texas A&M-RELLIS. Source: Last Energy announces PWR-5 documented safety analysis approval

Reported 7 Oct 2026 — BREST-OD-300 turbine hall receives separator-superheaters

Rosatom said two separator-superheaters were installed in the turbine hall; concreting of the turbine foundation began in May 2026. This is non-nuclear turbine-hall work; it does not change the operation schedule.

Record: BREST-OD-300 Seversk. Source: World Nuclear News: Key equipment installed in BREST-OD-300 turbine hall (7 October 2026)

Release dated 6 Oct 2026 — INL reports DOE approval of MARVEL's final documented safety analysis

INL says DOE's Idaho Operations Office approved MARVEL's final documented safety analysis just before the primary coolant system arrived at INL in mid-September 2026. INL describes it as a key safety document authorizing a dry criticality configuration at near-zero power with no coolant. Criticality in December is a target; the release does not report achieved criticality.

Record: MARVEL microreactor test bed at INL's TREAT facility. Source: INL news release (6 Oct 2026): MARVEL reactor gets federal safety approval as its primary vessel arrives in Idaho

Announced 5 Oct 2026 — BWXT announces BANR selection for Belledune transportable plant

BWXT announced the selection of BANR, with two reactors planned for the up to 50 MWe transportable plant. New Brunswick signed a letter of intent to buy power. This announcement is not a licence or a construction start.

Record: Belledune Prodigy transportable nuclear proposal. Source: BWXT: BWXT's BANR microreactor chosen for Canadian transportable nuclear power plant project (5 October 2026)

Letter dated 1 Oct 2026 — Duke files Revision 2 of its Belews Creek early site permit application

Duke Energy Carolinas submitted Revision 2 of the Belews Creek early site permit application in response to regulatory-audit questions. Duke states it is not requesting a limited work authorization. Revision 2 is an applicant filing, not an NRC permit, a design selection or a construction start.

Record: Duke Belews Creek technology-neutral SMR proposal. Source: U.S. NRC: NRC draft safety evaluation sections completed for the Belews Creek ESP

Oct 2026 — ČEZ submits EIA documentation for the Temelín Rolls-Royce SMR

ČEZ submitted EIA documentation for the Temelín Rolls-Royce SMR to the Ministry of the Environment.

Record: Temelin Rolls-Royce SMR. Source: World Nuclear News: ČEZ submits EIA documentation for the Temelín Rolls-Royce SMR to the Ministry of the Environment

Notice updated 30 Sep 2026 — Véron newcleo proposal: CNDP says the debate reports are available

A CNDP notice says the debate reports are available. It gives newcleo and RTE until 30 December to explain how they take the debate into account and communicate their decision. The 30 December date is not a regulator's licensing-decision deadline.

Record: newcleo LFR-AS-30 at Beaumont-en-Véron / Savigny-en-Véron. Source: CNDP: the public debate's report and assessment are online (notice updated 30 September 2026)

Published 30 Sep 2026 — INL reports Radiant completed the first DOME test

INL published a statement reporting that Radiant completed the first DOME test. INL gives no completion day, achieved power or scope of completion.

Record: Radiant Kaleidos demonstration at INL DOME. Source: INL: Deployable Energy selected to test its nuclear battery at DOME

30 Sep 2026 — DOE approves environmental determination for PWR-5 Phase 1 testing at RELLIS

DOE approved a NEPA determination for proposed PWR-5 Phase 1 initial criticality and low-power testing, bounded at 100 kWth, fewer than 1,000 cumulative operating hours and no grid export. This is not DOE startup authorization or proof that criticality occurred.

Record: Last Energy PWR-5 pilot at Texas A&M-RELLIS. Source: DOE PWR-5 Phase 1 NEPA categorical exclusion, DOE-ID-26-008

30 Sep 2026 — Holtec says Pioneer safety analysis report completes permit application part 2

Holtec reported that the preliminary safety analysis report completed the second part of its phased construction-permit application for Pioneer Units 1 and 2. No limited work authorization or construction permit is recorded.

Record: Holtec Pioneer Units 1 and 2 (SMR-300 at Palisades). Source: Holtec: Major regulatory developments in the Palisades Pioneer Unit 1 & 2 program (30 September 2026)

30 Sep 2026 — Hexana asks ASNR for an opinion on a first safety option for its SMR

ASNR reports that Hexana requested an opinion on a first safety option for its small modular reactor. ASNR places this in pre-instruction safety-options exchanges. This is a design assessment request, not a Gard Rhodanien site application or an issued opinion.

Record: Design assessment. Source: ASNR, PRM projects and technical exchanges (14 October 2026 update)

Announced 30 Sep 2026 — INL names DOME as host for Unity's planned 2027 full-power test

INL named DOME as the host for Unity's planned 2027 full-power test. The self-funded slot is conditional on readiness, fuel and regulatory milestones. Selection is not authorization.

Record: Deployable Energy Unity full-power test in INL's DOME (2027). Source: INL: Deployable Energy selected to test its nuclear battery at DOME

Announced 29 Sep 2026 — TVA announces NRC construction permit for Clinch River Unit 1

TVA announced that the NRC had issued a construction permit for Clinch River Unit 1. The announcement is not a construction start.

Record: TVA Clinch River BWRX-300. Source: TVA construction permit announcement

Letter dated 29 Sep 2026 — NRC caps Belews Creek review fees and brings forward its review schedule

An NRC letter sets a $2,178,000 fixed cap on NRC review fees for the Belews Creek early site permit, a service-fee limit rather than a project cost, and accelerates the review schedule. The revised review dates remain targets.

Record: Duke Belews Creek technology-neutral SMR proposal. Source: U.S. NRC: NRC draft safety evaluation sections completed for the Belews Creek ESP

28 Sep 2026 — Construction permit issued for TVA's Clinch River Unit 1

A construction permit was issued to TVA for Clinch River Nuclear Unit 1. It is immediately effective and authorizes construction of a power reactor facility in Roane County, Tennessee. No construction start is recorded; a permit is not a physical construction start.

Record: TVA Clinch River BWRX-300. Source: 91 FR 63311

24 Sep 2026 — NRC proposes changes to reactor licensing, decommissioning and operational oversight

The NRC published a proposal for reactor licensing, decommissioning and operational oversight, with comments due on 9 November. The proposed changes are not in effect.

Record: Proposed regulatory enhancements for reactor licensing, decommissioning and operational oversight. Source: NRC proposed rule: regulatory enhancements for reactor licensing, decommissioning and operational oversight

Published 24 Sep 2026 — Second RITM-200S completed at ZiO-Podolsk for the first PEB-106

The second RITM-200S was completed at ZiO-Podolsk, completing the reactor set for the first PEB-106 floating unit for Baim / Cape Nagloynyn.

Record: Baim / Cape Nagloynyn floating PEB-106 (RITM-200S). Source: Strana Rosatom: Rosatom manufactures the reactor set for the first floating unit (24 September 2026)

23 Sep 2026 — Atucha shareholders reportedly authorise a tender for a privately financed reactor

Shareholders reportedly declared the reactor initiative of business interest and authorised the board to call a public tender for a privately financed reactor over 12 hectares of land reserved for the cancelled Atucha III. Authorising a tender is not an award.

Record: ACR-300 SMR proposal at Atucha (Meitner Energy). Source: Dinámica: Atucha III cancelled; tender for a private reactor authorised (September 2026)

Announced 21 Sep 2026 — Ameresco picked to negotiate Aberdeen Proving Ground power lease, with an IMSR planned

The Army selected Ameresco to negotiate a long-term lease for a power campus at Aberdeen Proving Ground in Maryland. Ameresco says it is working with Terrestrial Energy on an IMSR for the campus's Phase 2 site. The lease is still under negotiation; this is not a licence application, permit or construction start.

Record: Ameresco–Terrestrial Energy IMSR at Aberdeen Proving Ground. Source: Ameresco: Ameresco Selected for U.S. Army Strategic Capital Initiatives to Advance Energy Resilience at Aberdeen Proving Ground and Picatinny Arsenal

18 Sep 2026 — FLiBe coolant salt arrives at Natura's MSR-1 facility at Abilene Christian University

DOE says more than 4,700 pounds of FLiBe salt, once the coolant of Oak Ridge's Molten Salt Reactor Experiment, arrived at Natura's facility for MSR-1, shipped with Oak Ridge and Idaho national laboratories. A salt delivery is not fuel loading, criticality or operation.

Record: Natura MSR-1 demonstration at Abilene Christian University. Source: naturaresources.com: Natura receives FLiBe coolant salt for MSR-1

17 Sep 2026 — NRC holds uncontested hearing on the Belews Creek early site permit application

The NRC scheduled the uncontested hearing for 17 September 2026 in Danbury, North Carolina, and its project page marks the hearing as held. The permit decision date is listed as to be determined. A hearing is a review step, not a decision.

Record: Duke Belews Creek technology-neutral SMR proposal. Source: NRC: Duke Energy's Belews Creek early site permit application

Announced 16 Sep 2026 — Idaho State University names site for its Advanced Research and Test Reactor

An Idaho State University announcement identifies the Business and Research Park as the site of the future Advanced Research and Test Reactor. The announcement establishes no nuclear permission.

Record: Idaho State University / NuCube Advanced Research and Test Reactor. Source: ISU: site revealed for Advanced Research and Test Reactor

Announced 16 Sep 2026 — Blue Energy says it submitted Part 1 of an NRC construction permit application

Blue Energy statements say the first part of a construction permit application for the Port of Victoria project was submitted to the NRC. A submitted application part is not a permit.

Record: Blue Energy BWRX-300 at Port of Victoria. Source: Blue Energy construction permit application announcement

15 Sep 2026 — Blue Energy files Part 1 of a construction permit application for Port of Victoria

Blue Energy filed Part 1 of a phased construction permit application for one BWRX-300 unit in Victoria, Texas. It includes a limited work authorization request, two exemption requests and an environmental report. It is the first part of a phased application; the applicant intends to file the full application within 18 months of Part 1. The NRC has reported receipt only, not acceptance for docketing, a limited work authorization or a construction permit.

Record: Blue Energy BWRX-300 at Port of Victoria. Source: 91 FR 64409

Release dated 14 Sep 2026 — TVEL: first stage of concreting BREST-OD-300 reactor-vessel inner cavity completed

TVEL said the first stage of concreting the BREST-OD-300 reactor-vessel inner cavity at Seversk was completed.

Record: BREST-OD-300 Seversk. Source: Atomic Energy 2.0 (relaying TVEL/SKhK release): First stage of BREST-OD-300 reactor-vessel concreting completed (14 September 2026)

In force 11 Sep 2026 — Japan's NRA amends its rule on power-reactor location and structure standards

NRA Rule No. 7 of 2026 amended the 2013 rule on the location, structure and equipment of commercial power reactors, in force 11 September 2026. The content of the amendment was not reviewed; the rule approves no site.

Record: Japan: NRA rule on standards for the location, structure and equipment of commercial power reactors (NRA Rule No. 5 of 2013). Source: e-Gov law database: revision history of NRA Rule No. 5 of 2013

3 Sep 2026 — Studsvik selects GE Vernova Hitachi and Samsung C&T for a four-unit BWRX-300 project

Studsvik selected GE Vernova Hitachi and Samsung C&T as strategic partners for an initial four-unit BWRX-300 project of up to 1.2 GW at Nyköping or Målma. The first site is still to be decided. This is not an investment decision.

Record: Studsvik new nuclear at the Nyköping home site. Source: Studsvik: Studsvik, GE Vernova Hitachi and Samsung C&T commit to advancing 1.2 GW nuclear power project in Sweden (3 September 2026)

3 Sep 2026 — Studsvik selects GE Vernova Hitachi and Samsung C&T for four-unit BWRX-300 project

Studsvik selected GE Vernova Hitachi and Samsung C&T for an initial four-unit BWRX-300 project.

Record: Kärnfull Next SMR park at Målma, Valdemarsvik. Source: Studsvik: Studsvik, GE Vernova Hitachi and Samsung C&T commit to advancing 1.2 GW nuclear power project in Sweden (3 September 2026)

Announced 1 Sep 2026 — Belledune: First Nations and Prodigy transportable nuclear proposal of up to 50 MWe

The Pabineau and Eel River Bar First Nations and Prodigy propose a transportable nuclear plant of up to 50 MWe at Belledune. The packaging platform is not a selected reactor design. No construction start or precise parcel is established.

Record: Belledune Prodigy transportable nuclear proposal. Source: Prodigy Belledune Indigenous-led proposal

Company timeline Sep 2026 — BWXT says Pele core barrel cartridge installation is complete

BWXT's programme page lists core barrel cartridge installation for the Pele reactor as complete in September 2026. The reactor has not yet shipped to INL or been loaded with fuel.

Record: Project Pele (INL microreactor demonstration). Source: BWXT Project Pele page

Reported Sep 2026 — Bechtel steps away from Natrium Kemmerer Unit 1; TerraPower to rebid EPC contract

Bechtel and TerraPower said in September 2026 that they would move forward separately; Bechtel will finish the on-site Sodium Test & Fill Facility. TerraPower said it would rebid the engineering, procurement and construction contract. No replacement contractor is named; the company's statement that the schedule is unaffected is not a verified milestone.

Record: Natrium Kemmerer Unit 1. Source: World Nuclear News: Bechtel steps away from TerraPower project

31 Aug 2026 — NNSA approves safety design criteria for the Xuwei high-temperature reactor

NNSA approved B-version safety design criteria for the Xuwei HTGR. Its later announcement describes a small nuclear power reactor with multiple modules and one turbine. The criteria guide safety review; they are not a construction licence.

Record: Xuwei nuclear heating and power plant Unit 3 (HTGR). Source: NNSA: safety design criteria for the Xuwei high-temperature gas-cooled reactor

31 Aug 2026 — Comments close on NRC proposal to modernize reactor licensing, oversight and siting

Comments closed on the NRC proposal, published on 16 July 2026 under the Commission's revision of its rules ordered by Executive Order 14300. The proposal is not in effect.

Record: Proposed modernization of reactor licensing, safety oversight and siting practices. Source: Federal Register 91 FR 44560 (16 Jul 2026): Modernizing Reactor Licensing, Safety Oversight, and Siting Practices (proposed rule)

31 Aug 2026 — NRC completes draft safety evaluation report for Pioneer, with information gaps

The NRC completed a draft safety evaluation report, with information gaps, for Holtec Pioneer Units 1 and 2 (SMR-300 at Palisades).

Record: Holtec Pioneer Units 1 and 2 (SMR-300 at Palisades). Source: NRC Pioneer Units 1 and 2 LWA page

31 Aug 2026 — Untra Nuclear Power AB applies for Swedish state support

Untra Nuclear Power AB applied for Swedish state support.

Record: Blykalla SEALER Untra / Tierp proposal. Source: blykalla.com: Untra Nuclear Power AB applies for Swedish state support

28 Aug 2026 — NRC allows specified Pioneer excavation walls before a limited work authorization

The NRC issued a narrow exemption allowing specified permanent support-of-excavation walls at Pioneer Units 1 and 2 before a limited work authorization. It does not issue or commit to a limited work authorization or construction permit, or show that physical work began.

Record: Holtec Pioneer Units 1 and 2 (SMR-300 at Palisades). Source: 91 FR 55628

28 Aug 2026 — Government assigns Uppsala county administrative board to draft Untra facility plan

The Government assigned the Uppsala county administrative board to draft a facility plan for Untra.

Record: Blykalla SEALER Untra / Tierp proposal. Source: Government of Sweden: facility-plan assignment for the Untra application

25 Aug 2026 — NRC finds no significant environmental impact for Pioneer excavation-wall exemption

The NRC issued an environmental assessment and finding of no significant impact covering the environmental effects of the requested Pioneer support-of-excavation-wall exemption. It is not the 28 August exemption and does not issue a limited work authorization or construction permit.

Record: Holtec Pioneer Units 1 and 2 (SMR-300 at Palisades). Source: 91 FR 54890

Announced 25 Aug 2026 — Blykalla reports application for up to eight SEALER units at Untra, Tierp

Blykalla reports an application for up to eight units and up to 440 MWe in total. Operation in the first half of the 2030s is conditional on approvals. No construction is established.

Record: Blykalla SEALER Untra / Tierp proposal. Source: Blykalla Untra application

25 Aug 2026 — Blykalla applies for Government approval of eight lead-cooled SMRs at Untra, Tierp

Blykalla AB applied for the Government's approval of eight lead-cooled small modular reactors of about 440 MW in total at Untra in Tierp municipality. Approval would replace the Environmental Code permissibility review, but not licensing under the Environmental Code and the Nuclear Activities Act. Approval needs municipal consent and a facility plan in force.

Record: Blykalla SEALER Untra / Tierp proposal. Source: Government of Sweden: Government review of new nuclear (status of applications)

Reported 24 Aug 2026 — Report: Rosatom expects Myanmar survey contract by end of 2026, site work in 2027

Atomic Energy 2.0, relaying Strana Rosatom, reported that Rosatom expects to sign a contract for primary engineering surveys by the end of 2026 and begin site work in 2027. These remain plans; the site is not named.

Record: Myanmar 110 MW SMR project (two RITM-200N; site not named). Source: Atomic Energy 2.0 (relaying Strana Rosatom): Rosatom to begin engineering surveys at the Myanmar small NPP site in 2027

19 Aug 2026 — Myanmar: Russian prime minister says implementation of the agreements is starting

The Russian prime minister said during the Myanmar president's visit that implementation of the agreements is starting. The site is still not named.

Record: Myanmar 110 MW SMR project (two RITM-200N; site not named). Source: Atomic-energy.ru: Russia starts implementation of the Myanmar agreements (19 August 2026)

13 Aug 2026 — NRC holds mandatory hearing on Clinch River construction permit

The NRC held a mandatory hearing on the Clinch River construction permit for TVA's BWRX-300.

Record: TVA Clinch River BWRX-300. Source: NRC: TVA Clinch River construction permit application

7 Aug 2026 — Long Mott: Commission dismisses applicant's appeal after contentions ruled moot

The Commission dismissed Long Mott Energy's appeal of the Licensing Board's January 2026 ruling admitting an intervenor, because the Board had since dismissed both admitted contentions as moot. This is an adjudicatory order, not a permit decision; the construction-permit application remains under review.

Record: Long Mott Generating Station (Xe-100 at Dow Seadrift). Source: NRC Commission order CLI-26-10, Long Mott Energy, LLC (Docket 50-614-CP)

Announced 6 Aug 2026 — Deep Fission announces DOE approval of its Gravity pilot NSDA

Deep Fission announced approval of the NSDA for its Gravity pilot at Parsons. The agreement defines an early safety framework and separate later readiness, startup and operating steps. The announcement is not an NRC licence or evidence of operating authority.

Record: Deep Fission Gravity pilot, Parsons. Source: deepfission.com: DOE approves Nuclear Safety Design Agreement for the Gravity reactor (Reactor Pilot Program)

Aug 2026 — Tarapur approved as site for BSMR-200 and SMR-55 lead units, DAE tells Parliament

Written answers to Parliament posted in August and September 2026 state that the Atomic Energy Commission approved Tarapur as the site and gave in-principle approval for engineering and construction. Sanction and regulator consent are not reported.

Record: Tarapur BSMR-200 lead proposal. Source: Department of Atomic Energy: written answers in Parliament on small reactors (posted May to September 2026)

Aug 2026 — Radiant's Kaleidos reactor ships from El Segundo to INL

Radiant's Kaleidos reactor shipped from El Segundo to INL.

Record: Radiant Kaleidos demonstration at INL DOME. Source: radiantnuclear.com: Kaleidos reactor ships from El Segundo to INL

Announced 30 Jul 2026 — Holtec Oyster Creek SMR proposal documented

Company proposes four SMR-300 units with expected combined output of 1,360 MWe, gross/net unspecified. Approval of the former station decommissioning plan is not an SMR construction permit.

Record: Holtec Oyster Creek SMR proposal. Source: Holtec Oyster Creek proposal