Datakart

Interactive maps built entirely on free, open Norwegian geodata. No paid APIs, no authentication required — just public data from Kartverket, SSB, NVE, MET.no, and OpenStreetMap.

Live at: datakart.no

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Features

Feature	Route	Description	Docs
Stedsprofil	/kommune/[slug]	One dashboard per kommune (357 pages) combining population, income, housing, schools, energy, natur, charging, weather, and an interactive locator map with 6 toggleable layers
Boligpriser	/bolig	Housing prices (kr/m²) per municipality — bubble map with kommune comparison and Finn.no deep-links
Skoler og barnehager	/skoler	All 3 100+ skoler and 5 500+ barnehager in Norge with student/child counts, type and ownership. Data from Utdanningsdirektoratet (NSR + NBR)
Helsetilbud	/helse	Kommune choropleth of fastlege data — ledig kapasitet, andel uten fastlege, gjennomsnittlig listelengde. SSB tabell 12005. Optional OSM overlay for sykehus and legevakt
Energikart	/energikart	Wind, hydro, offshore wind, oil and gas — plus an animated timeline of the build-out from 1900 to today	docs/maps/energi.md
Magasinkart	/magasin	Regulated water reservoirs with live fill levels	docs/maps/magasin.md
Ladestasjoner	/lading	All EV charging stations in Norway	docs/maps/lading.md
Turisthytter	/hytter	Mountain huts and wilderness cabins	docs/maps/hytter.md
Høydekart	/map	Click anywhere for elevation (m.o.h.) and live weather	docs/maps/hoyde.md
Inntektskart	/lonn	Choropleth: median household income per municipality with kommune comparison	docs/maps/inntekt.md
Verneområder	/vern	Choropleth: protected nature area per municipality (km²)	docs/maps/vern.md
Kostnader	/kostnader	Choropleth of what it costs to live in each municipality: kommunale årsgebyr (water, sewage, waste, chimney) and eiendomsskatt (property tax) with Sammenlign comparison feature. SSB tables 12842 + 14674
Valgkart	/valg	Stortingsvalg 2025/2021 and Kommunestyrevalg 2023/2019 per kommune — vinnerparti choropleth, stemmefordeling, frammøte and endring from previous election. Compare two kommuner side by side. Animated timeline of all 21 Stortingsvalg 1945–2025 on today's kommuner. Data from Valgdirektoratet and SSB	docs/maps/valg.md
Prisvekst	/prisvekst	Inflation dashboard: KPI, categories, trends, Nordic comparison

The home and three category landing pages (/energi, /natur, /samfunn) are tiered hubs that introduce each theme and link out to the maps above. /energi previously hosted the energy MAP — that moved to /energikart in May 2026; a conditional 301 in next.config.ts preserves Stedsprofil deep-links.

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Tech Stack

• Next.js 16 (Turbopack) + React 19 + TypeScript
• Leaflet 1.9 + react-leaflet 5 + react-leaflet-cluster — interactive maps with clustering
• Recharts (via shadcn/ui chart components) — charts
• Motion (motion.dev) — subtle page animations
• Tailwind CSS 4 + shadcn/ui (Base UI) — styling
• Lucide React — icons
• Vercel — hosting (free tier, 10-second serverless timeout)

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Environment Variables

Variable	Required	Description
NOBIL_API_KEY	Required	API key from NOBIL — charging station data for the build-time fetch script
ENOVA_RT_API_KEY	Optional	API key from data.enova.no (NOBIL Real-time product) — enables live charging station availability
NVE_API_KEY	Optional	API key from NVE HydAPI — enables live river discharge and water level data on hydro plant and reservoir cards
Set in Vercel under Project Settings → Environment Variables, or locally in .env.local.

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Running Locally

npm install

# Seed the pre-built static data files
node scripts/fetch-stations.mjs
node scripts/fetch-cabins.mjs
node scripts/fetch-production.mjs
node scripts/fetch-reservoirs.mjs
node scripts/fetch-kommuner.mjs
node scripts/fetch-finn-locations.mjs
node scripts/fetch-schools.mjs
node scripts/fetch-health.mjs
node scripts/fetch-valg.mjs
node scripts/build-kommune-profiles.mjs

npm run dev

scripts/fetch-valg-historikk.mjs (Stortingsvalg 1945–2025 for the /valg timeline) is not part of the seed or prebuild: historical results don't change, and its output is committed. Rerun it after a new Stortingsvalg or a kommune reform.

Open http://localhost:3000.

The seed scripts are also run automatically as a prebuild hook when deploying. If Overpass is unreachable, the existing files in public/data/ are kept.

Analytics reports

scripts/analytics.mjs prints read-only Google Analytics 4 and Search Console reports (overview, pages, sources, hosts, queries, gsc-pages, query-pages /valg). It authenticates with a service account whose JSON key lives outside the repo; set GOOGLE_SERVICE_ACCOUNT_KEY, GA_PROPERTY_ID and GSC_SITE in .env.local. The GA tag only loads when VERCEL_ENV === "production", so localhost and preview visits are not counted.

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Data Sources

Data	Source	Refresh
Charging stations	NOBIL / Enova (datadump API)	Build-time static JSON
Charging status	NOBIL Real-time (Enova WebSocket)	Live via WebSocket
Tourist cabins	OpenStreetMap (Overpass API)	Build-time static JSON
Wind and hydro power	NVE ArcGIS (Vindkraft2, Vannkraft1)	1-hour server cache
Reservoirs	NVE ArcGIS (Vannkraft1 layer 6)	1-hour server cache
Offshore wind zones	NVE ArcGIS (Havvind2023)	1-hour server cache
Oil and gas facilities	Sodir FactMaps (WGS84 MapServer)	1-hour server cache
River observations	NVE HydAPI	Per-request
Housing prices	SSB table 06035 (Selveierboliger)	24-hour server cache
Population	SSB table 07459	Build-time static JSON
Income	SSB InntektStruk13	24-hour server cache
Schools	Utdanningsdirektoratet NSR (data-nsr.udir.no)	Build-time static JSON
Kindergartens	Utdanningsdirektoratet NBR (data-nbr.udir.no)	Build-time static JSON
Fastlege data	SSB table 12005 (Fastlegelister og fastlegekonsultasjoner)	Build-time static JSON
Kommunale gebyrer	SSB table 12842 (vann, avløp, avfall, feiing)	Build-time static JSON
Eiendomsskatt	SSB table 14674 (Eiendomsskatt per kommune)	Build-time static JSON
Eierstatus (boforhold)	SSB table 14891 (selveier, andelseier, leier per kommune)	Build-time static JSON
Boligtyper	SSB table 06265 (enebolig, småhus, blokk, ...)	Build-time static JSON
Utdanningsnivå	SSB table 09429 (grunnskole / vgs / høyere utdanning)	Build-time static JSON
Sykehus and legevakt	OpenStreetMap (Overpass, amenity=hospital/clinic scoped to Norway)

Map tiles: Kartverket WMTS (topo, topograatone) and OpenTopoMap.

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Developer and AI Guide

See CLAUDE.md for architecture decisions, code patterns, component conventions, and instructions for working with this codebase.