Draft, not yet released. In stewardship review. Not indexed until the first approved release.

Data appendix

The indicator set with its sources, the source registers, the licences of every kind of material and the formats of the edition.

12 min read0 figures8 tables24 notesNR-XTECH-FISSION-GLOBAL-2026-BASELINE

Contents
  1. ·Edition home
  2. ·Executive summary
  3. 1Advanced nuclear is firm infrastructure and a delivery test
  4. 2Key findings
  5. 3Systems and sectors at baseline
  6. 4Risks and capability
  7. 5Fuel supply gap while first-of-a-kind units are delayed
  8. 6Readings from the other desks
  9. 7The 2027 agenda
  10. 8Systems in depth
  11. AMethodology
  12. BData appendix
    1. B.1 The indicator set
    2. B.2 Global source register
    3. B.3 Regional reading, advanced nuclear across ten clusters
    4. B.4 Cluster card: enrichment and HALEU supply chain
    5. B.5 How countries appear in the advanced nuclear edition
    6. B.6 Licences
    7. B.7 Formats and provenance
  13. CReferences and record
  14. ·Complete edition, for print

B.1The indicator set

Table B.1Global baseline indicator set
IndicatorValueUnitYearStateSource
Operable reactors, world443reactors2025Reported1
Net capacity of operable reactors405,667MWe2025Reported1
Share of world electricity≈9%2025Reported1
Reactors under construction80reactors2025Reported1
Test reactors critical under the DOE pilot program4reactors2026Reported7
Natrium base output345MWe2026Reported8
Natrium output with storage500MW2026Reported8
NRC review time for the Natrium permit18months2026Reported9
HALEU enrichment range5 to <20% U-2352024Reported11
DOE estimate of US HALEU demand in 203550tonnes a year2024Reported11
World enrichment capacity68.076million SWU a year2025Reported12
Rosatom enrichment capacity29.133million SWU a year2025Reported12
Vogtle 3 and 4 total cost estimate, May 202230.34USD billion2022Reported15
Hinkley Point C cost estimate, February 202635GBP billion, 2015 prices2026Reported17
EPR2 programme cost estimate, six units72.8EUR billion2025Reported20
Darlington four-unit cost estimate20.9CAD billion2026Reported14
Indicators, CSVIndicators, JSON

B.2Global source register

The governed source set behind this edition. Each source keeps its authority, coverage, cadence and role; categories describe origin, not truth.

Domains bound by the register

  • INF
  • MIN
  • FIN
  • TRD
  • ENE
  • CLI
  • GOV
  • WAT
  • HLT
  • FOO
Table B.3Global source register
SourceCategoryCoveragePeriodCadenceRole
WNA world nuclear power page1industry associationglobal2025continuousfleet
IAEA projections2intergovernmental agencyglobal2025annual2050 cases
White House orders345head of governmentUS2025one-offgoals
ANS and DOE pilot program reports67professional society and agencyUS2026per eventtest reactors
DOE and trade reports on Natrium89agency and trade pressUS2026per eventpermit
NRC Part 53 page10national regulatorUS2026periodiclicensing
DOE HALEU page11agencyUS2024periodicfuel
WNA enrichment page12industry associationglobal2025annualcapacity
WNA country pages14 to21industry associationeight countries2025 to 2026continuousprojects and cost
Steigerwald et al. and Krall et al.252627peer-reviewed journalsmethod2022 to 2023one-offcost and waste

B.3Regional reading, advanced nuclear across ten clusters

Regional plates follow with the regional editions. This page gives the regional reading of advanced nuclear infrastructure and fuel exposure in table form and orders no region.

Table B.4Regional reading, advanced nuclear across ten clusters
RegionPrincipal hazardsSystems most exposedBaseline evidence
North AmericaNRC permits and DOE test reactors; Canadian small reactor under constructionlicensing, fuelDOE78; WNA1415
South Americanational programmesnone boundregional evidence (not bound)
EuropeUK small reactor contract; French EPR2 programme; Finnish repository licence (post-close, context only21)cost, wasteWNA1720
Eurasiasodium-cooled and lead-cooled reactors; floating unitsdelivery, fuelWNA1623
Middle East and North Africafour APR1400 units in operation at Barakahexport deliveryWNA19
Africanational programmesnone boundregional evidence (not bound)
South Asianational programmesnone boundregional evidence (not bound)
East AsiaChinese fleet and gas-cooled reactor; Korean small reactor design reviewdelivery, enrichmentWNA181912
ASEANIndonesia agreement for floating small units, October 2026export deliveryWNA16
Oceania-Pacificnational programmesnone boundregional evidence (not bound)

B.4Cluster card: enrichment and HALEU supply chain

  • fuel supply
  • enrichment
  • HALEU
  • single point
Systems in view
enrichment plants, deconversion, fuel fabrication, reactor developers
Defining events
US ban on Russian low-enriched uranium imports from August 202412
Couplings
MIN → ENE fuel; TRD → MIN restrictions
Capability evidence
Piketon centrifuge cascade and recovery of existing material reported by DOE11
Gaps
HALEU output by year; reserves; fabrication capacity
Agenda items
Q-01 · Q-04

Four operators hold nearly all world enrichment capacity, and one holds about 43% of the 2025 total [12].

SUPPLY

Concentrated capacity

DOE estimates US HALEU demand could reach 50 tonnes a year by 2035, while Piketon had enriched more than 100 kg by late 2024 [11].

DEMAND

HALEU against supply

The US prohibits imports of Russian low-enriched uranium from August 2024, with waivers to the start of 2028 [12].

POLICY

Import limits

B.5How countries appear in the advanced nuclear edition

Countries enter the advanced nuclear edition through the readiness chapters of their own national editions, on one card grammar. They are read against peer distributions and thresholds, never ordered.

Table B.5How countries appear in the advanced nuclear edition
Card fieldWhat it showsSource
WEFH+B stateeach core system against peer distribution bandsnational edition
Couplingsthe national dependency matrixnational edition
Risk objectsthe national risk portfolionational edition
Capability rungsthe national capability laddernational edition
Evidence ageoldest and newest source datesnational source register

Editions in the 2026 Baseline programme

26national

countries and unions

10regional

clusters

16global

flagship and sector

14strategic

systems reports

20frontier

technology reports

How to read a country card

  • Each system is shown against the distribution of its peers, with thresholds where they exist
  • Couplings and risk objects come from the country’s own national edition
  • Capability rungs record evidence, not a judgement of institutions
  • Evidence age is printed, so older national data are visible as such
Table B.6National Baseline Editions in the 2026 programme
WaveCountries and unionsState
W0CanadaISSUED
W1United States, United Kingdom, France, Germany, Italy, Japan, European Union, SwitzerlandPLANNED
W2Mexico, Brazil, Argentina, Türkiye, Russian Federation, Saudi Arabia, United Arab Emirates, South Africa, Senegal, Kenya, African Union, India, China, Republic of Korea, Indonesia, Singapore, AustraliaPLANNED

B.6Licences

Table B.7Licences of each kind of material
MaterialLicence
TextCC BY 4.0
Dataon the licence of each source; Nexus tables CC BY 4.0
FiguresNexus figures CC BY 4.0; third-party as credited
Mapsboundary source and licence printed on each plate
MetadataCC0 1.0, as Zenodo publishes it
Third-party data, figures and textThe source’s own licence, credited where it is used; never relicensed
Nexus-authored text, tables and figures: CC BY 4.0 (SPDX CC-BY-4.0). Map plates print their boundary source and licence.

B.7Formats and provenance

Table B.8This edition in every format
FormatKindStateWhat it isIdentifier
Web editionHTMLOn this siteDraft in stewardship review; every value resolves to its source.NR-XTECH-FISSION-GLOBAL-2026-BASELINE-v1.0.0
Print editionPDFAt releaseA4 portrait · screen, print and archival PDF, signed with the web edition at release.NR-XTECH-FISSION-GLOBAL-2026-BASELINE-v1.0.0
Indicator dataCSV · JSONOn this site16 indicators with unit, year, status and source; the machine-readable copy ships with the evidence bundle at release.NR-XTECH-FISSION-GLOBAL-2026-BASELINE data release v1
FiguresSVG · PNGOn this site4 on the web edition: headline figure, figure 1.3, coupling instrument, capability ladder.FIG-XTECH-FISSION-GLOBAL-2026-BASELINE-*
SlidesPDFNot recordedNo slide deck is recorded for this edition.
Evidence briefHTML · PDFNot recordedNo evidence brief is recorded for this edition.
Dataset with DOIDataCiteAt releaseConcept and version DOI are minted at deposit; none is recorded yet.

Provenance

Edition pack
The edition’s content pack (JSON), from which the print and web editions are built
Evidence cut
DC-XTECH-FISSION-GLOBAL-2026-B0, closed 30 September 2026
Reproducibility
sourced values cited; analytical values reproducible from stated parameters
Self-check
14 of 23 at evidence close; a fail on any item blocks release
Review
five passes scheduled before release (in Annex C)
Publisher of record
The Global Centre for Risk and Innovation (GCRI) for the Nexus Consortium
Corrections
Registry correction pathway; upheld corrections are published as notices with a new version

Notes

Numbers are the edition’s reference numbers, so a note reads the same in every chapter. The full list, with every source and its licence, is in Annex C. Annex C, references

  1. 1World Nuclear Association (ed.), Nuclear Power in the World Today (information library page; 443 operable reactors, 405,667 MWe net, about 9% of world electricity, 80 under construction with 87,813 MWe gross; electricity data for 2025). World Nuclear Association, London. Observation year 2025. Accessed 2026-11-03.back
  2. 7US Department of Energy (ed.), Department of Energy Celebrates Fourth Criticality Ahead of July 4th Goal (press release, 6 July 2026; Aalo-X, Mark-0, Ward 250 and Unity; zero-power fueled criticality; agency announcement). US Department of Energy, Washington. Observation year 2026. Accessed 2026-11-03.back
  3. 8US Department of Energy, Office of Nuclear Energy (ed.), NRC Issues Construction Permit for TerraPower’s Natrium Advanced Reactor (article, 9 March 2026; 345 MWe sodium-cooled fast reactor, storage lifts output to 500 MW; Kemmerer Unit 1, Wyoming; operating licence separate). US Department of Energy, Washington. Observation year 2026. Accessed 2026-11-03.back
  4. 9World Nuclear News (ed.), NRC issues construction permit for first Natrium plant (news report, 5 March 2026; 18-month review against 27 months initially; completion expected 2030). World Nuclear Association, London. Observation year 2026. Accessed 2026-11-03.back
  5. 11US Department of Energy, Office of Nuclear Energy (ed.), What is high-assay low-enriched uranium (HALEU)? (article of 3 December 2024; enrichment 5% to less than 20% U-235; demand could reach 50 metric tons a year by 2035; Piketon more than 100 kg enriched). US Department of Energy, Washington. Observation year 2024. Accessed 2026-11-03.back
  6. 12World Nuclear Association (ed.), Uranium Enrichment (information library page; capacity table from the WNA Nuclear Fuel Report 2025: 68.076 million SWU in 2025, Rosatom 29.133, Urenco 17.300, CNNC 13.789 estimated, Orano 7.500; US ban on Russian low-enriched uranium from August 2024). World Nuclear Association, London. Observation year 2025. Accessed 2026-11-03.back
  7. 15World Nuclear Association (ed.), Nuclear Power in the USA (country profile; 94 operable reactors, 96,952 MWe; Vogtle 3 and 4 cost estimates; Kemmerer permit March 2026; Clinch River construction licence September 2026; Palisades and Crane restart status; page states three reactors critical by July 2026). World Nuclear Association, London. Observation year 2026. Accessed 2026-11-03.back
  8. 17World Nuclear Association (ed.), Nuclear Power in the United Kingdom (country profile, first 100,000 characters read; Rolls-Royce SMR delivery contract April 2026 for three Wylfa units with up to GBP 599 million loan financing; Hinkley Point C GBP 35 billion in 2015 prices, February 2026; Sizewell C). World Nuclear Association, London. Observation year 2026. Accessed 2026-11-03.back
  9. 20World Nuclear Association (ed.), Nuclear Power in France (country profile, first 100,000 characters read; 57 operable reactors; EPR2 six units, EUR 72.8 billion estimate of December 2025; Flamanville 3 grid connection December 2024, EUR 13.2 billion estimate of December 2022). World Nuclear Association, London. Observation year 2025. Accessed 2026-11-03.back
  10. 14World Nuclear Association (ed.), Nuclear Power in Canada (country profile; Darlington BWRX-300, construction licence April 2025, first nuclear concrete 26 June 2026, operation expected 2030, CAD 20.9 billion for four units; page lists 316 MWe gross and describes 300 MWe). World Nuclear Association, London. Observation year 2026. Accessed 2026-11-03.back
  11. 2UNVERIFIED, not opened: IAEA (ed.), Energy, Electricity and Nuclear Power Estimates for the Period up to 2050, 2025 edition (377 GW at end of 2024; high case 992 GW and low case 561 GW in 2050), taken from search-result summaries of trade reports; the IAEA page was not retrieved. International Atomic Energy Agency, Vienna. Observation year 2025. Accessed 2026-11-03.back
  12. 3The White House (ed.), Ordering the Reform of the Nuclear Regulatory Commission, Executive Order 14300, 23 May 2025 (goal of 400 GW by 2050 from about 100 GW in 2024; 18-month limit for new reactor decisions; 1-year limit for continued operation). The White House, Washington. Observation year 2025. Accessed 2026-11-03.back
  13. 4The White House (ed.), Reinvigorating the Nuclear Industrial Base, Executive Order 14302, 23 May 2025 (5 GW of uprates; 10 new large reactors with complete designs under construction by 2030; fuel, enrichment and spent fuel directions). The White House, Washington. Observation year 2025. Accessed 2026-11-03.back
  14. 5UNVERIFIED, not opened: The White House (ed.), Reforming Nuclear Reactor Testing at the Department of Energy, Executive Order 14301, 23 May 2025, the page address returned not found; the goal of three reactors achieving criticality by 4 July 2026 is taken from the American Nuclear Society report. The White House, Washington. Observation year 2025. Accessed 2026-11-03.back
  15. 6American Nuclear Society (ed.), The deadline arrives: checking in on the Reactor Pilot Program (news article, 2 July 2026; criticality by Antares 4 June, Valar 18 June, Deployable Energy 1 July; ten companies selected in August 2025; status of the remaining participants). American Nuclear Society, La Grange Park. Observation year 2026. Accessed 2026-11-03.back
  16. 10US Nuclear Regulatory Commission (ed.), 10 CFR Part 53 rulemaking page (final rule 91 FR 15696; risk-informed, performance-based, technology-inclusive framework; background in NEIMA and the ADVANCE Act). US Nuclear Regulatory Commission, Rockville. Observation year 2026. Accessed 2026-11-03.back
  17. 21POST-CLOSE, context only: World Nuclear Association (ed.), Nuclear Power in Finland (country profile; Olkiluoto 3 contract of EUR 3.2 billion for mid-2009, regular production April 2023; Onkalo operating licence granted October 2026 valid to the end of 2070, after the 30 September evidence close). World Nuclear Association, London. Observation year 2026. Accessed 2026-11-03.back
  18. 25Steigerwald, B., Weibezahn, J., Slowik, M. and von Hirschhausen, C., Uncertainties in estimating production costs of future nuclear technologies: a model-based analysis of small modular reactors, Energy 281, 128204, 2023 (abstract page read). Elsevier, Amsterdam. Observation year 2023. Accessed 2026-11-03.back
  19. 26Steigerwald, B. et al., Future nuclear fission reactors: uncertainties, the effect of parameter choice and an application to small modular reactor concepts, Safety of Nuclear Waste Disposal 2, 217, 2023 (abstract page read; 15 concepts; none competes with existing renewables on its assumptions). Copernicus Publications, Gottingen. Observation year 2023. Accessed 2026-11-03.back
  20. 27Krall, L.M., Macfarlane, A.M. and Ewing, R.C., Nuclear waste from small modular reactors, Proceedings of the National Academy of Sciences 119(23), e2111833119, 2022 (open-access full text, abstract and conclusions read; waste volume factors of 2 to 30; three designs). National Academy of Sciences, Washington. Observation year 2022. Accessed 2026-11-03.back
  21. 16POST-CLOSE, context only: World Nuclear Association (ed.), Nuclear Power in Russia (country profile, first 100,000 characters read; 34 operable reactors, 27,969 MWe; BREST-OD-300 under construction since June 2021; Akademik Lomonosov 2 x 32 MWe, grid connection December 2019; Indonesia agreement October 2026). World Nuclear Association, London. Observation year 2026. Accessed 2026-11-03.back
  22. 23World Nuclear Association (ed.), Advanced Nuclear Power Reactors (information library page, updated November 2025; Generation IV forum set up in 2001 with six concepts; sodium-cooled and lead-cooled fast reactors; molten salt reactors not covered). World Nuclear Association, London. Observation year 2025. Accessed 2026-11-03.back
  23. 19World Nuclear Association (ed.), Nuclear Power in South Korea (country profile; 26 operable units, 25,609 MWe; i-SMR 170 MWe design, standard design approval application February 2026, approval targeted 2028; Barakah units in operation, last in September 2024). World Nuclear Association, London. Observation year 2026. Accessed 2026-11-03.back
  24. 18World Nuclear Association (ed.), Nuclear Power in China (country profile, first 100,000 characters read; 65 reactors, 65,085 MWe operable; 39 under construction; HTR-PM commercial operation December 2023; Linglong One commissioning expected during 2026; 110 GWe target by 2030). World Nuclear Association, London. Observation year 2026. Accessed 2026-11-03.back

Cite this annex

Valadbaygi, S. (Ed.). (2026). Annex B: Data appendix. In Exponential Technology Report 2026: Advanced Nuclear and Next-Generation Fission (Baseline Edition 2026, Report No. NR-XTECH-FISSION-GLOBAL-2026-BASELINE) [Draft under review]. The Global Centre for Risk and Innovation (GCRI).

Every citation form of the whole report, BibTeX and RIS included, is on the edition home. Cite this report

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