Home/Data sources & licences

Where the numbers come from

Data sources & licences

Every figure carries its source. The primary upstream data providers are below; attribution is required by several of them and is retained throughout the site.

  • ENTSO-E Transparency Platform — prices, generation, load and cross-border flows for every zone, including the Nordic zones and the Iberian-blackout window.
  • netztransparenz.de — the German TSOs' redispatch / curtailment API.
  • MaStR (Marktstammdatenregister) — Germany's per-installation capacity registry, aggregated to Landkreis level.
  • SMARD — per-control-area generation and load for the north–south balance.
  • ODRÉ — RTE éCO2mix — French régional and national generation and consumption.
  • NESO — Great Britain's regional carbon-intensity API and the constraint-breakdown dataset.
  • Eurostat — household and industrial electricity price components (country-level).
  • Region boundaries — pre-simplified TopoJSON from Eurostat GISCO NUTS (© EuroGeographics) and the NESO GB DNO areas.

Curated, not live

A few figures are hand-assembled from published studies and carried as committed static tables with a range and a citation — the France cost stack and the storage-capacity series. They are labelled as estimates and take no side. (The marginal-fuel view now draws its gas price from a live World Bank feed; only its single carbon-price assumption is curated.) Full per-figure sourcing lives in docs/SOURCES.md.

Using the data

The pre-computed JSON under /data/ is public and readable from anywhere. Wattlas's own derived aggregates are licensed CC BY 4.0: use them, change them, sell what you build — just say where they came from. Credit Wattlas — wattlas.net, and credit the upstream source of whatever you took, since several providers require it in their own right.

What the licence does not cover

A few artefacts embed upstream material Wattlas does not own and cannot sub-license, so no reuse rights are granted for them: the France cost stack, the French reactor-fleet list, the capacity-adequacy figures, and the curated electric-mobility tables (Europe comparison, charging prices, demand scenarios, vehicle-to-grid, trucks & buses). Each names its own source; go there for terms. The full text, with the reasons, is in LICENSE-DATA.

A number without its caveat is not the number

Several figures are labelled upper bounds, models or estimates — the arbitrage and flexibility figures assume perfect foresight and zero losses, and are unachievable; marginal fuel is a model, not a measurement; the curtailment cost is an estimate at a reference price. Those labels are part of the data. Reproducing a figure without its caveat misrepresents it.