Forecast carbon intensity of Great Britain electricity for the current half hour
Forecast carbon intensity of Great Britain electricity for the current half hour in the region of a postcode, with the generation mix, as JSON.
Answeringour last check, 2026-10-27
1 of 1checks answered this week
630 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://pennydatahq.com/api/carbon/:postcode
| Category | Everything else |
|---|---|
| Provider host | pennydatahq.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-27 | valid payment request | 402 | $0.002 | 630 ms |
Example input (from the provider)
{
"method": "GET",
"pathParams": {
"postcode": ":postcode"
},
"queryParams": {},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"properties": {
"postcode": {
"description": "Great Britain postcode or outward code (the first half, such as RG10), with or without the space, any case. Northern Ireland (BT) is not on the GB grid and is not supported.",
"type": "string"
}
},
"required": [
"postcode"
],
"type": "object"
},
"queryParams": {
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"dno_region": {
"description": "Distribution network operator area",
"type": [
"string",
"null"
]
},
"from": {
"description": "Start of the half hour, ISO 8601 UTC",
"type": [
"string",
"null"
]
},
"generation_mix": {
"additionalProperties": {
"type": "number"
},
"description": "Percent by fuel",
"type": "object"
},
"intensity_gco2_per_kwh": {
"description": "Regional forecast",
"type": [
"number",
"null"
]
},
"intensity_index": {
"description": "very low, low, moderate, high or very high",
"type": [
"string",
"null"
]
},
"postcode": {
"description": "Outward code",
"type": "string"
},
"region": {
"type": [
"string",
"null"
]
},
"to": {
"description": "End of the half hour, ISO 8601 UTC",
"type": [
"string",
"null"
]
}
},
"required": [
"postcode"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}