What it returns
Carbon intensity of Great Britain's electricity from the Carbon Intensity API run by the national grid operator (NESO) with the University of Oxford and WWF.
Common uses
Carbon-aware scheduling of compute, EV charging and heating, sustainability reporting, smart home apps. Pay per row returned.
Request
POST https://api.pushbuild.com/uk-carbon-intensity/run with a JSON body. Send your key in the X-API-Key header.
| Field | Type | Description |
|---|---|---|
mode | string: national, regional, factors | National, regional or emission factors. Default: "national". |
from | string | e.g. 2026-10-21T00:00 (default: 24 hours ago) |
to | string | Default: 24 hours ahead (forecast). |
regions | string | Regional mode: names or IDs, e.g. London,North Scotland,13 |
postcode | string | Regional mode: outward code, e.g. SW1A |
maxItems | integer | Maximum items to return (1-500). Default: 100. |
Example
curl -X POST https://api.pushbuild.com/uk-carbon-intensity/run \
-H "X-API-Key: YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"maxItems": 20}'Response
{"count": 20, "truncated": false, "seconds": 1.4, "items": [ { ... } ]}Each call returns up to 500 items. Records that fail validation or are not found are flagged in the items and not charged.
Pricing
Pay only for results returned: $0.08 per 1,000 periods. No charge for errors or empty searches.
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Questions about this API, higher volumes, or a data source you need that we don't cover yet.
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