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National Grid ESO

Great Britain's electricity system operator open data, CKAN-style

🌦 WeatherUNMONITORED
AUTH NONECORS ✓AGENT ?HTTPS ✓COMMERCIAL ?

The operator formerly known as National Grid ESO (now NESO) publishes Britain's grid data through a standard CKAN API. List every dataset with a single keyless GET, then drill into wind forecasts, demand, carbon intensity and more. No key, no signup.

—HOW IT'S SCORED ⓘ
▶ Run liveDocs ↗
Status badge · for your READMEshipapis health badge: — · unmonitored
ON PROBE SCHEDULE

We probe a documented GET and expect 2xx JSON — full uptime and health score. Open provider docs ↗

Uptime historystarts after first probe

On our probe schedule. Uptime charts appear after the first check lands.

Example responsefrom provider docs — not verified by us
GET https://api.neso.energy/api/3/action/package_list

{
  "help": "https://api.neso.energy/api/3/action/help_show?name=package_list",
  "success": true,
  "result": [
    "14-days-ahead-operational-metered-wind-forecasts",
    "14-days-ahead-wind-forecasts"
  ]
}
Call itcurl · fetch · python
curl "https://api.neso.energy/api/3/action/package_list"
const res = await fetch("https://api.neso.energy/api/3/action/package_list");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://api.neso.energy/api/3/action/package_list")
print(res.json())
Endpoints · 5On scheduleFULL DOCS ↗
On schedule — GET /action/package_list awaits first probe
GET/action/package_listPROBED

Great Britain's electricity system operator open data, CKAN-style

GET/action

Action — documented GET route.

GET/action/1

Action details by ID (example: 1).

GET/action?limit=10

Action — documented GET route.

GET/action/search?q=test

Search by query parameters.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Not tracked yet. Shape-change history starts once this API joins our probe schedule.

National Grid ESO: common questions

Is National Grid ESO free to use?

Yes — National Grid ESO is a free weather API. Free tier: Free — limits not published. Whether the free tier allows commercial use is unclear — check the provider docs.

Does National Grid ESO need an API key?

No — National Grid ESO needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).

Can I call National Grid ESO from the browser?

Yes — National Grid ESO returns CORS headers over HTTPS, so front-end code can fetch it directly with no backend proxy. Use the fetch snippet on this page, or hit "Run live" to try it now.

Is National Grid ESO up right now?

National Grid ESO is catalogued but not yet on our probe schedule, so we don't publish a live status for it. Check the provider's own status page or docs for its current state.