# Carbon Explorer
> GB Industrial CO₂ Supply & Demand Planning Tool — by Maddie Kortenaar

Carbon Explorer is a web-based geospatial planning tool that maps industrial CO₂ supply and demand across Wales, Scotland and England. It helps industrial businesses, local authorities, investors and researchers identify CO₂ reuse opportunities, optimise transport routes, calculate ROI and build investor evidence cases for CO₂ capture deployment.

## What this tool does
- Maps 36 industrial CO₂ supply sites and 52 demand sites across Great Britain on an interactive GIS map
- Routes CO₂ transport along actual road networks using Haversine + OSRM-style routing
- Ranks the Top 5 GB deployment sites by a composite capture deployment score
- Generates an investor-grade Evidence Pack (PDF export) with supply/demand analytics
- Calculates SME CO₂ ROI: annual savings, payback period, and carbon credit value
- Provides a self-serve site explorer with search, filtering and custom CSV upload
- Supports magic-link authentication for Pro data access
- Admin panel restricted to authorised users

## Dataset
- **Version**: 1.2.0 (March 2026)
- **Supply sites**: 36 (Wales: 12, Scotland: 10, England: 14)
- **Demand sites**: 52 (Wales: 18, Scotland: 14, England: 20)
- **Total sites**: 88 across 9 industrial sectors
- **Base year**: NAEI 2022 (National Atmospheric Emissions Inventory)
- **Additional sources**: SEPA permit register, Environment Agency IED register, ONS BRES sector benchmarks, UK ETS permit data, Logistics UK transport cost benchmarks, UK Net Zero Strategy

## Industrial sectors covered
Steel & Metals, Energy & Power, Chemicals & Fertilisers, Petrochemicals, Cement & Lime, Food & Beverage, Agriculture & Horticulture, Waste & Biomass, Pharmaceuticals

## Geographic coverage
**Wales** — Neath Port Talbot, Swansea, Cardiff, Pembrokeshire, Vale of Glamorgan, Carmarthenshire and others
**Scotland** — Falkirk/Grangemouth, Aberdeen, Edinburgh, Glasgow, Teesside-adjacent, Angus and others
**England** — Humber cluster (Drax, Tata Scunthorpe, Phillips 66), Teesside (CF Industries Billingham), Northwest (Essar Stanlow, INEOS Runcorn), Midlands, Yorkshire and others

Note: England coverage is partial — only the highest-emitting sites by sector from the NAEI 2022 register are included. London, Cornwall, South East England and many Midlands areas are not in the current dataset.

## Top 5 deployment sites (GB-wide, March 2026)
1. Drax Power Station (BECCS) — North Yorkshire — score 96 — 9,800 t CO₂/yr — biogenic
2. CF Industries Billingham (Fertiliser Plant) — Stockton-on-Tees — score 92 — 3,800 t CO₂/yr
3. Tata Steel Port Talbot — Neath Port Talbot — score 91 — 6,500 t CO₂/yr
4. Margam Cement Works — Neath Port Talbot — score 83 — 1,800 t CO₂/yr
5. Valero Pembroke Refinery — Pembrokeshire — score 74 — 2,800 t CO₂/yr

## Key pages
- `/` — Home: persona-based entry point (SME Buyer, Local Authority, Investor, Researcher)
- `/map` — Interactive GIS map with supply/demand markers and road-routing overlay
- `/explore` — Full site explorer: search, filter by type/sector/region, site detail profiles
- `/optimise` — Route optimiser: select supply + demand sites, run constraint-based optimisation, save scenarios
- `/analytics` — GB Industrial CO₂ Evidence Pack: regional breakdown, sector charts, impact metrics, Top 5 sites
- `/roi` — SME ROI Calculator: enter postcode + annual CO₂ usage → savings, payback, carbon credits
- `/about` — Methodology, data sources, assumptions and data provenance

## Key metrics (all-GB, 2022 base year)
- Total indexed supply capacity: ~96,000 t CO₂/yr across 36 sites
- Total indexed demand: ~52 sites across 9 sectors
- Estimated annual SME savings if fully matched: modelled from site-level transport cost differentials
- Average deployment score across supply sites: composite of capture capacity, stream purity, readiness level and demand proximity

## Technology
React + Vite + TypeScript frontend, Express 5 API server, PostgreSQL database, React Leaflet GIS maps, Recharts data visualisation, Framer Motion animations, Tailwind CSS, magic-link auth via Resend.

## Creator
Maddie Kortenaar — [paypal.me/MKortenaar](https://paypal.me/MKortenaar)

## Further reading
- Full methodology and data sources: [carbonexplorer.net/about/](https://carbonexplorer.net/about/)
- Sitemap: [carbonexplorer.net/sitemap.xml](https://carbonexplorer.net/sitemap.xml)

## Licence
Dataset compiled from public UK government data sources (NAEI, EA, SEPA, ONS). Application code and compiled dataset: © Maddie Kortenaar 2026.