Executive summary — The Nuclear Energy Intelligence Portal is an interactive geopolitical brief that maps the structural constraints governing the future of global zero-carbon baseload power. It serves energy strategists, policy analysts, and capital allocators by translating reactor fleets, fuel-cycle concentration, and heavy-manufacturing chokepoints into decision-grade visual intelligence — exposing where dependence, deficit, and demographic decay collide.
- Exposure ranking array — ranks nations by absolute dependence on nuclear generation versus structural capacity, separating large grid-buffering fleets from single-site national single-points-of-failure.
- Supply-chain chokepoint map — a dark, interactive geospatial view that toggles between operating reactors and the ultra-heavy forging nodes (Japan, China, Russia, France) that physically gate Gen-III+ construction.
- Capital destruction tracker — a delay-versus-cost matrix visualizing the schedule and budget overruns endemic to Western greenfield reactor builds.
- The retirement cliff — fleet age profiling that surfaces the medium-term baseload risk as the 1970s/1980s build cohorts approach their 60-year terminal limits.
- Fuel-cycle concentration matrix — stage-by-stage breakdown of mining, conversion, and enrichment leadership, highlighting Russian dominance of the SWU bottleneck.
- Regional target dossiers — focused deep dives, including the Akkuyu VVER build-out anchoring Türkiye's industrial energy future.
- Methodology in the open — every assessment is framed by the Monarch Castle Tri-Color Severity Scale, exposed in an in-app methodology memo.
The portal is a single-page analytical brief composed of linked intelligence modules. Each module reads a curated dataset and renders it through a purpose-built visualization rather than a generic chart.
- Exposure Table — country-level nuclear share, active reactor count, and net capacity, ranked to distinguish dependence from scale.
- Interactive Map — a label-stripped dark Leaflet map plotting reactor sites and, on toggle, the ultra-heavy forging and fuel-cycle chokepoints that constrain new build.
- Capital Scatterplot — plots project cost against schedule delay to make Western greenfield cost-overrun patterns legible at a glance.
- Fuel Cycle Matrix — decomposes the front end of the fuel cycle (mining → conversion → enrichment) into per-stage market leadership.
- Retirement Cliff Chart — age-profiles the operating fleet to expose the coming wave of terminal-limit retirements.
- Türkiye Dossier — a regional strategic deep dive on the Akkuyu VVER program.
- Featured Reports & Policy Memo — short narrative briefs and a methodology modal explaining the assessment framework.
Per Monarch Castle doctrine — evidence before assertion. The portal is driven by versioned, analyst-curated reference datasets committed in-repo under src/data/, so every figure on screen is traceable to a specific record in source control:
| Dataset | Records | Key fields |
|---|---|---|
exposure.json | National nuclear dependence | countryName, nuclearSharePct, activeReactorCount, activeNetCapacityMw |
reactors.json | Reactor sites & units | location, lat/lng, capacityMw, gridShare, buildYear, capitalCostBillion, delayYears, supplyChainRisk, capacityHistory |
chokepoints.json | Heavy-forging / fuel-cycle nodes | name, country, lat/lng, status, type, description |
uranium_cycle.json | Fuel-cycle stages | process, unit, per-stage leaders[] with sharePct |
Assessment methodology. Industrial processes are scored against a three-level constraint scale — SEVERE CONSTRAINT / HIGH CONSTRAINT / SITE-DEPENDENT — informed by permitting, financing and delivery evidence. These are comparative assessments, not deterministic outcomes. The framework is documented in the in-app Intelligence Methodology memo.
Provenance. Nuclear generation shares refresh weekly from the keyless Our World in Data series. Detailed reactor, capacity, project and chokepoint records remain analyst-curated reference sets; source age is disclosed in the interface.
- UI: React 19 + TypeScript 5.9 (strict)
- Build / dev server: Vite 7 (fast HMR, optimized production bundling)
- Geospatial: Leaflet + react-leaflet (dark, label-stripped interactive map)
- Charts: Recharts (scatter plots, demographic bar charts)
- Quality: ESLint 9 + typescript-eslint
- Deploy:
gh-pages→ GitHub Pages (static hosting)
Live brief:https://monarchcastletech.github.io/NuclearEnergyIntelligence/
Requires Node.js 18+ and npm.
# 1. Install dependencies
npm install
# 2. Run the dev server (http://localhost:5173)
npm run dev
# 3. Type-check + build a production bundle into /dist
npm run build
# 4. Preview the production build locally
npm run preview
# 5. Deploy the /dist bundle to GitHub Pages
npm run deployThe compiled /dist folder is fully static and can be hosted on any CDN or object store to specification.
A product of Energy Intelligence · Monarch Castle Technologies — an operating company of Monarch Castle Holdings. Sister companies: Monarch Castle Technologies · Strategic Data Company of Ankara
See LICENSE. © 2026 Monarch Castle Holdings · Ankara, Türkiye.
Interactive geopolitical intelligence brief mapping global nuclear exposure, supply-chain chokepoints, fuel-cycle concentration, and the coming reactor retirement cliff.
Lifecycle: Active. The badge and this statement describe maintenance status, not service availability.
The preview is maintained as a repository asset; the live interface or generated output remains authoritative.
These repository-specific sources define the methodology or provenance boundary. Source dates, transformation steps, and known gaps must travel with analytical outputs.
Weekly automated source check and GitHub Pages deployment. If the public source is unavailable or invalid, the workflow retains the last known good dataset and records the failed check.
npm cinpm run devRun only in a trusted development environment and review repository-specific prerequisites before using networked or hardware features.
src/— repository-specific implementation, data, or configuration boundary.public/— repository-specific implementation, data, or configuration boundary.
npm testnpm run lintnpm run buildOriginal software history is maintained in Git. External datasets, reports, trademarks, screenshots, and assets are not relicensed by this repository; see THIRD_PARTY_NOTICES.md before reuse.
Scenarios and scores are comparative analytical aids. Review their source dates, assumptions and methodology before use.
Do not publish vulnerabilities in an issue. Use GitHub's private vulnerability-reporting flow when available, or follow the organization security policy.
Original repository code and documentation are available under MIT; see LICENSE. That license does not override third-party terms documented in THIRD_PARTY_NOTICES.md.
Use the machine-readable CITATION.cff. Cite the specific commit and, for analytical use, record the data or model snapshot date.
Nuclear Energy Intelligence is a Monarch Castle Technologies project. Part of Monarch Castle Technologies.