Grid carbon intensity (Great Britain)

GET https://api.api.sh/energy/v1/carbon-intensity
1 credit / call public data try it in the playground →

Carbon intensity of Great Britain's electricity (gCO2/kWh) with index (very low to very high) and generation mix, national or for a region or outward postcode: now, from a time, or a half-hourly forecast up to 48 hours.

Every response includes credits_used: the credits this call cost.

Parameters

nametypedescription
postcode string Outward postcode (e.g. SW1A, RG10) for its region. Example: SW1A
region_id integer Region id 1-17 (see /energy/v1/carbon-regions).
hours integer Forecast hours ahead (1-48, half-hourly periods).
from string Start time (YYYY-MM-DDTHH:MMZ, default now); national with no hours: the 24 hours to this time.

Every endpoint also takes fresh, raw, fields (see lean responses and caching).

Example

curl "https://api.api.sh/energy/v1/carbon-intensity?postcode=SW1A" \
  -H "x-api-key: $APISH_KEY"

Response

A JSON object with the fields described above, plus raw (the source's own data), cached, fetched_at and credits_used. Errors return {"success": false, "error": "…"} with the HTTP status (see errors). A lookup that ran but found nothing (404) costs the price above; refused calls and errors on our side are free (what's charged).

The fastest way to see the full response is the playground: it runs this endpoint with your account and shows the exact JSON.