---
title: "Hourly grid carbon intensity (EIA-930 fuel mix derived, data lags up to ~1 day)"
method: GET
path: "/api/intensity"
---

# Hourly grid carbon intensity (EIA-930 fuel mix derived, data lags up to ~1 day)

`GET /api/intensity`

## Request

- Base URL: `https://emission-factors.com`
- URL: `https://emission-factors.com/api/intensity`
- Auth: none declared

## Query parameters

- `zip` string
- `ba` string
- `hours` integer
- `aggregate` 'hour_of_day'

## Response `200`

Hourly intensity array or aggregated profile

## Other responses

- `400`: Missing ZIP/BA or unknown BA
- `404`: ZIP not in EIA-930 coverage (AK, HI, PR)
- `503`: EIA-930 API temporarily unavailable; retry (Retry-After header)

---

[API](https://skmtc.dev/emission-factors/apis/emission-factors-com-api.md) · [All operations](https://skmtc.dev/emission-factors/apis/emission-factors-com-api/llms.txt) · [OpenAPI document](https://skmtc.dev/emission-factors/apis/emission-factors-com-api/revisions/6a306ef2044a?raw)