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Emission Factors API: DEFRA, EPA & Grid CO2e Calculator

Try for free

Emission factor lookup and CO2e calculator on public open data: UK DESNZ (DEFRA), US EPA, EEA and Ember grid factors. Scope, GHG category, formula and source per activity. Not affiliated with DEFRA or EPA.

Pricing

from $17.00 / 1,000 activity calculateds

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Monthly active users

3 days ago

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You can access the Emission Factors API: DEFRA, EPA & Grid CO2e Calculator programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

1from apify_client import ApifyClient
2
3# Initialize the ApifyClient with your Apify API token
4# Replace '<YOUR_API_TOKEN>' with your token.
5client = ApifyClient("<YOUR_API_TOKEN>")
6
7# Prepare the Actor input
8run_input = { "activities": [
9        "500 km diesel van",
10        "1200 kWh electricity Germany 2025",
11        "3 t steel",
12        "flight LHR-JFK economy",
13        {
14            "reference": "INV-17",
15            "category": "natural gas",
16            "quantity": 18000,
17            "unit": "kWh",
18            "country": "UK",
19            "year": 2025,
20        },
21    ] }
22
23# Run the Actor and wait for it to finish
24run = client.actor("reliable_tools/emission-factors-api").call(run_input=run_input)
25
26# Fetch and print Actor results from the run's dataset (if there are any)
27print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
28for item in client.dataset(run.default_dataset_id).iterate_items():
29    print(item)
30
31# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

Emission Factors API: CO2 Emission Factors, DEFRA & EPA API in Python

The Apify API client for Python is the official library that allows you to use Emission Factors API: DEFRA, EPA & Grid CO2e Calculator API in Python, providing convenience functions and automatic retries on errors.

Install the apify-client

$pip install apify-client

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Emission Factors API: DEFRA, EPA & Grid CO2e Calculator API in JavaScript

Emission Factors API: DEFRA, EPA & Grid CO2e Calculator API through CLI

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