---
title: "Electricity Maps"
description: "Electricity Maps is a built-in integration for Home Assistant. It has 66.1k installs sharing analytics and needs the vendor's cloud."
canonical: "https://vulpo.app/integrations/core/co2signal"
url: "https://vulpo.app/integrations/core/co2signal.md"
last-updated: "2026-10-22"
version: "1.4"
---

# Electricity Maps

> Electricity Maps is a built-in integration for Home Assistant. It has 66.1k installs sharing analytics and needs the vendor's cloud.

Electricity Maps is a built-in integration that reports the carbon intensity of the electricity grid. It adds sensors for CO2 intensity and for the percentage of the grid supplied by fossil fuels. Data comes from the Electricity Maps cloud service, so an internet connection and the vendor's service are required. Setup happens in the UI, where an API key is entered and the location is chosen by coordinates or by a zone key. A diagnostics file can be downloaded to attach to a bug report.

Automatic summary of Home Assistant's source code. Something wrong? [Get in touch](https://vulpo.app/contact)

[Open in My Home Assistant](https://my.home-assistant.io/redirect/config_flow_start/?domain=co2signal)

## Supports

- **Uses the vendor's cloud**: Needs an internet connection and an account with the vendor.
- **Set up in the UI**: Add it in Settings, Devices and services. Nothing to download.
- **Updated with Home Assistant**: Ships and updates with every Home Assistant release.

## Setting it up

It is added under Settings, Devices and services, with Add integration.

### Connect

- **API key**
- **Location**

### Coordinates

- **Latitude**
- **Longitude**

### Country

- **Zone key**

### Sign in again

- **API key**

Texts from Home Assistant's source code, [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).

## Entities

- **Sensors**: CO2 intensity, Grid fossil fuel percentage

## Troubleshooting

- **Diagnostics**: Downloads a diagnostics file to attach to a bug report.

## At a glance

- Kind: Built-in integration
- Category: [Energy](https://vulpo.app/integrations/category/energy.md), Energy prices
- Brand: Electricity Maps
- Number: 66.1k installs sharing analytics
- Connection: Needs the vendor's cloud
- Upkeep: Part of Home Assistant
- Needs: Built into Home Assistant
- Domain: `co2signal`
- Source: <https://www.home-assistant.io/integrations/co2signal/>

In Vulpo: Chart card, Apple Watch

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about)

Last updated 2026-10-22. Source: https://vulpo.app/integrations/core/co2signal

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